Answer Capsule
Schlage Encode leads the September 2026 consensus ranking for Keyless Entry & Caregiver Access, followed by Yale Assure Lock 2 and Kwikset Halo. The current study includes 7 valid AI-platform responses and 10 qualifying entities. Compared with August 2026, the leader changed. The current list added Ultraloq U-Bolt Pro, Defiant Deadbolt, Eufy Smart Lock C220, Lockly Model 7S Smart Lock, and Aqara Smart Lock U100 and removed Lockly Secure Plus. This is an immediately preceding-month comparison. Rank movement measures changes in this collection of standardized AI-platform responses. It is not product testing, customer-review evidence, or proof that a provider's underlying quality improved or declined.
What Changed Since August 2026
This comparison uses the immediately preceding completed month.
Schlage Encode remained No. 1 in September 2026. It was named by 7 platforms, compared with 3 in August 2026. Both studies used 7 valid platform responses.
The largest upward moves were Schlage Encode (up 1) and August Wi-Fi Smart Lock (4th Gen) (up 1). The largest downward moves were Yale Assure Lock 2 (down 1).
The current qualifying set added Ultraloq U-Bolt Pro, Defiant Deadbolt, Eufy Smart Lock C220, Lockly Model 7S Smart Lock, and Aqara Smart Lock U100. It no longer includes Lockly Secure Plus from the earlier top group. Entry or exit reflects the minimum-mention rule and the current response set, not a product launch, discontinuation, or quality finding.
| Current rank | Entity | Previous rank | Rank movement | Current mentions | Previous mentions | Mention change |
|---|---|---|---|---|---|---|
| 1 | Schlage Encode | 2 | Up 1 | 7 | 3 | +4 |
| 2 | Yale Assure Lock 2 | 1 | Down 1 | 7 | 4 | +3 |
| 3 | Kwikset Halo | 3 | No change | 6 | 3 | +3 |
| 4 | August Wi-Fi Smart Lock (4th Gen) | 5 | Up 1 | 5 | 2 | +3 |
| 5 | Ultraloq U-Bolt Pro | — | New | 5 | — | — |
| 6 | Level Lock+ | 6 | No change | 2 | 2 | +0 |
| 7 | Defiant Deadbolt | — | New | 2 | — | — |
| 8 | Eufy Smart Lock C220 | — | New | 2 | — | — |
| 9 | Lockly Model 7S Smart Lock | — | New | 2 | — | — |
| 10 | Aqara Smart Lock U100 | — | New | 2 | — | — |
| — | Lockly Secure Plus | 4 | Exited | — | 3 | — |
The table is calculated directly from the two stored ranking datasets. Positive rank movement means an entity moved closer to No. 1; mention change shows the difference in the number of included platform responses naming it.
The August 2026 edition preserves the complete earlier ranking and methodology for reference.
Research Snapshot
- Topic: Best smart locks for seniors and caregivers who want safer keyless entry, remote lock management, and temporary access codes for family or care providers.
- Target buyer: Seniors and caregivers in the United States.
- Use case: Keyless Entry & Caregiver Access.
- Platforms included: openai, anthropic, deepseek, grok, perplexity, kimi, google (7 platforms).
- Research date: 2026-09-27.
- Number of unique entities named: 15.
- Number of qualifying entities: 10.
- Eligibility rule: An entity qualified only if it was named by at least two platforms during ranking discovery.
- Ranking unit: Smart lock model and platform/provider.
- Geography: United States.
Platform mentions count only ranking-discovery mentions. Several platforms later completed a fit assessment for entities they did not name during ranking discovery, and those assessments are used for buyer-fit detail but do not change the ranking.
The Consensus Ranking
Questions This Section Answers
- What are the best smart locks for keyless entry and caregiver access in 2026?
- Which smart lock did all 7 AI platforms name for senior caregiver access?
The table below is the authority for rank, platform mentions, platform share, average listed position, and best position. It is reproduced exactly as calculated and is not recalculated here.
| Rank | Entity | Platform mentions | Share of platform responses | Average listed position | Best position | Best considered for |
|---|---|---|---|---|---|---|
| 1 | Schlage Encode | 7 | 100.0% | 1.29 | 1 | Caregiver access using individual codes for family members, aides, or service providers; Households wanting built-in Wi-Fi without purchasing a separate hub; Users who value a traditional physical key backup and a familiar push-button keypad |
| 2 | Yale Assure Lock 2 | 7 | 100.0% | 1.71 | 1 | Homes needing temporary or recurring caregiver access without giving caregivers a physical key; Seniors who prefer entering a PIN rather than using a smartphone; Caregivers who need remote lock control, activity visibility, and the ability to revoke access |
| 3 | Kwikset Halo | 6 | 85.7% | 4.5 | 3 | Homes where caregivers need remote lock/unlock control and individually assigned temporary or scheduled access codes.; Buyers who prefer a conventional deadbolt with keypad access and a physical emergency key.; DIY installations where direct Wi-Fi operation without a separate hub is important. |
| 4 | August Wi-Fi Smart Lock (4th Gen) | 5 | 71.4% | 3.8 | 3 | Homes with a compatible single-cylinder deadbolt where retaining existing keys is important; Caregivers who can manage access through the August app and want remote lock status or guest permissions; Seniors who benefit from auto-lock, activity notifications, and DoorSense door-status monitoring |
| 5 | Ultraloq U-Bolt Pro | 5 | 71.4% | 5.6 | 4 | Homes where caregivers need remotely managed access without exchanging physical keys; Users who want keypad, fingerprint, app, and mechanical-key alternatives; Care arrangements requiring temporary, scheduled, or revocable codes |
| 6 | Level Lock+ | 2 | 28.6% | 4.5 | 4 | Apple-oriented households where iPhone, Apple Watch, or app-based access is acceptable; Buyers who prioritize an exterior appearance nearly identical to a conventional keyed deadbolt; Caregiver arrangements using shared digital keys, keycards, or an optional Level Keypad |
| 7 | Defiant Deadbolt | 2 | 28.6% | 5.5 | 3 | Budget-conscious buyers who mainly need local keypad entry and physical-key backup; Homes where a caregiver can be given a persistent or app-managed code and the buyer accepts a lower-cost smart-lock ecosystem; Secondary doors where remote access is useful but premium hardware, accessibility, or highly mature caregiver workflows are not essential |
| 8 | Eufy Smart Lock C220 | 2 | 28.6% | 5.5 | 3 | U.S. homes with a compatible standard deadbolt; Caregivers who need remote lock/unlock, activity history, and managed guest or provider access; Households wanting multiple entry methods and no required hub or recurring lock-management subscription |
| 9 | Lockly Model 7S Smart Lock | 2 | 28.6% | 6.0 | 5 | Homes needing separate codes for family members, aides, and other trusted users; Caregivers who can install and maintain the optional Secure Link Wi-Fi Hub; Users who value a physical emergency key and 9V emergency power |
| 10 | Aqara Smart Lock U100 | 2 | 28.6% | 8.0 | 6 | Homes where caregivers need temporary, periodic, or one-time access codes.; Households wanting multiple entry methods, including fingerprint, keypad, Apple Home Key, and a physical key.; Apple Home users who already have a compatible Apple home hub. |
Which Option Is Best for Which Version of the Buyer Need?
Questions This Section Answers
- Which smart lock should a caregiver choose if the senior needs a physical keypad rather than a touchscreen?
- Is Schlage Encode or Yale Assure Lock 2 better for scheduled caregiver codes when a physical key backup matters?
- Which smart lock for senior caregiver access works without buying a separate hub?
Buyer needs in this category split along four axes: whether the senior will use a keypad, a phone, or a fingerprint; whether remote management must work without extra hardware; whether a physical key must remain usable; and how much battery maintenance the household can absorb.
| Buyer need | Best-ranked fit | Why, from the evidence |
|---|---|---|
| Broadest platform consensus and hub-free remote access | Schlage Encode (rank 1) | Named by all 7 platforms; built-in Wi-Fi, up to 100 codes, physical key backup, and no mandatory subscription identified [e1:openai:c_encode] [e1:perplexity:c1] |
| Scheduled temporary and recurring codes with a keyed backup | Yale Assure Lock 2 (rank 2) | Supports Always, Recurring, and Temporary schedules; keyed variants retain a mechanical key; up to. |
1. Schlage Encode
Questions This Section Answers
- Is Schlage Encode worth it for senior caregiver access, and what are its main drawbacks?
- Which Schlage Encode model should a buyer choose if the senior has low vision or dexterity limits?
Schlage Encode is the consensus leader for this use case and the only entity named by all seven platforms. It combines a keypad deadbolt, built-in Wi-Fi, app-managed access codes, activity history, and a physical key backup, which maps directly onto caregiver access without a separate hub [e1:openai:c_encode] [e1:perplexity:c1]. The Schlage Encode family includes the standard Encode (BE489), Encode Plus (BE499) with Apple Home Key, and Arrive (BE459) with backlit physical buttons, and these are materially different products that should not be treated as interchangeable [e1:openai:c_arrive_specs] [e1:openai:c_encode_plus].
Why it ranked here. Seven of seven platforms named it, with six placing it first and one placing it second. No other entity in this index reached 100% platform share with an average listed position below 1.5.
Best suited for. Households issuing and revoking temporary or recurring codes for aides, cleaners, and family; buyers who want built-in Wi-Fi without a hub; and users who value a physical key backup [e1:openai:c_encode] [e1:deepseek:c1].
Main strengths for the use case. Up to 100 access codes with scheduling and automatic expiration; timestamped activity logs identifying which code was used; remote lock/unlock through the Schlage Home app; Bluetooth fallback during Wi-Fi outages; and a physical key override [e1:anthropic:citation_2] [e1:anthropic:citation_7] [e1:perplexity:c3]. Schlage states the Encode family carries the highest residential BHMA ratings for security, durability, and finish, and independent coverage cites ANSI/BHMA Grade 1 and Grade AAA claims [e1:openai:c_encode_specs] [e1:anthropic:citation_3].
Main limitations. Battery life is the most consistent complaint: Schlage states up to six months with typical use, while independent testing and user reports describe shorter intervals, and one independent review found no external 9-volt emergency-power contacts on Encode Plus [e1:openai:c_encode_specs] [e1:openai:c_tomsguide] [e1:grok:0].
What Changed Since August 2026
Schlage Encode moved up from No. 2 to No. 1, and platform mentions increased from 3 to 7. The September 2026 article reframes Schlage Encode as the category's consensus leader rather than a "good, but not universally strong" fit, and it separates the family into the standard Encode (BE489), Encode Plus (BE499), and Arrive (BE459), which the earlier write-up treated largely as one option with a tap-to-unlock variant. The earlier article's specific dollar figures — a $299 MSRP, $249 to $300 street pricing, and a $329 MSRP — are not repeated, nor are the roughly 10-minute installation time and the 2–4 month battery-life estimate; the current section reports battery life only as up to six months with shorter intervals described by testing and user reports. Differences between the two editions reflect what each article reports; they do not by themselves prove that the product, service, or price changed.
2. Yale Assure Lock 2
Questions This Section Answers
- Is Yale Assure Lock 2 or Schlage Encode better for caregiver access when scheduled temporary codes matter?
- Does Yale Assure Lock 2 need a Wi-Fi module for remote caregiver access, and what does that cost?
Yale Assure Lock 2 is the second consensus pick, named by all seven platforms and placed first by two of them. It is the strongest option in this index for buyers who want granular scheduled access plus a keyed mechanical backup, and it is the only top-three entity where multiple platforms explicitly recommend the keyed variant for emergency fallback [e2:openai:c8] [e2:anthropic:c4]. The Yale Assure Lock 2 family spans keypad and touchscreen models in keyed and key-free configurations, and the exact SKU determines whether remote and scheduled features work at all.
Why it ranked here. Seven of seven platforms named it, with google and kimi placing it first and the remaining five placing it second. Its average listed position of 1.71 is the second-best in the index.
Best suited for. Multi-caregiver households needing scheduled temporary access; seniors who prefer a PIN over a phone; and buyers who want a physical key backup and are willing to monitor batteries and Wi-Fi [e2:openai:c1].
Main strengths for the use case. Yale documents Always, Recurring, and Temporary schedules, and the Wi-Fi Smart Module supports up to 250 entry codes with day and time windows [e2:openai:c2] [e2:anthropic:c1]. The app provides activity history and notifications identifying who entered and when [e2:anthropic:c1]. Keyed versions include a traditional mechanical keyhole, and key-free versions can be temporarily powered with a 9V battery [e2:anthropic:c4]. Installation replaces a standard deadbolt with a screwdriver, and the Wi-Fi Smart Module no longer requires a separate wall-outlet bridge [e2:anthropic:c7].
Main limitations. Battery life is the sharpest tradeoff: Yale's support documentation states up to approximately three months with Wi-Fi enabled, and one independent test burned through batteries in seven weeks [e2:openai:c5] [e2:anthropic:c5].
What Changed Since August 2026
Yale Assure Lock 2 moved down from No. 1 to No. 2, and platform mentions increased from 4 to 7. The September 2026 article reframes Yale Assure Lock 2 around a narrowed keyed-versus-key-free distinction, telling buyers the exact SKU determines whether remote and scheduled features work at all. The earlier write-up described a single "Keyed Wi-Fi" model; the current section covers the whole family and treats the keyed variant as the emergency-fallback choice, which changes how buyers should read the recommendation. The prior article's pricing evidence is not repeated here: the $240 to $290 lock range, $3.99 per additional key, and $80 standalone Wi-Fi Smart Module no longer appear. Battery-life figures the earlier section cited, including a three-month Wi-Fi estimate, also drop out, leaving the current article's seven-week independent test as the main battery signal. Differences between the two editions reflect what each article reports; they do not by themselves prove that the product, service, or price changed.
3. Kwikset Halo
Questions This Section Answers
- Which Kwikset Halo model should a caregiver choose for a senior who cannot use a touchscreen reliably?
- Is Kwikset Halo worth it for caregiver access if battery replacement every few months is a problem?
Kwikset Halo ranked third with six of seven platforms naming it, and it is the best-ranked option for buyers who want a physical push-button keypad or fingerprint entry rather than a touchscreen. The Kwikset Halo lineup includes Halo Select, Halo Keypad, Halo Touchscreen, and Halo Touch, and platform evidence repeatedly warns that these variants have different entry methods and should not be treated as one product [e3:openai:c2] [e3:openai:c3] [e3:perplexity:c11].
Why it ranked here. Six of seven platforms named it, with openai, deepseek, and perplexity placing it third. Its average listed position of 4.50 reflects wider spread than the top two, including a seventh-place placement from anthropic.
Best suited for. Homes where caregivers need remote lock/unlock and individually assigned temporary or scheduled codes; buyers who prefer a conventional deadbolt with keypad access and a physical emergency key; and DIY installations where direct Wi-Fi without a hub matters [e3:openai:c1] [e3:openai:c2].
Main strengths for the use case. Halo Wi-Fi models connect directly to Wi-Fi and support remote lock/unlock, user management, code management, activity viewing, and notifications through the Kwikset app without a separate hub [e3:openai:c1]. Kwikset documents custom access codes with schedules, and Halo Select lists up to 250 codes [e3:openai:c2] [e3:perplexity:c11]. Halo Select is listed as BHMA Grade AAA with a UL 20-minute rating and SmartKey re-keying [e3:openai:c2] [e3:google:1.4.7]. Halo Touch adds a fingerprint reader storing up to 100 prints for 50 users [e3:google:1.3.1]. Physical key backup is included on keyed models [e3:openai:c1].
What Changed Since August 2026
Kwikset Halo remained at No. 3, and platform mentions increased from 3 to 6. The September 2026 article reframes this pick as the Kwikset Halo lineup rather than one model, warning buyers that Halo Select, Halo Keypad, Halo Touchscreen, and Halo Touch use different entry methods and should not be treated as a single product. That matters most for caregivers who need push-button or fingerprint entry instead of a touchscreen. The earlier write-up described the Halo Select Plus specifically, while the current section emphasizes direct Wi-Fi, scheduled codes, and Halo Select's listed 250-code capacity. Dollar figures are no longer repeated: the prior $260 to $329 range, the $642.30 distributor reference, and the $3–$5 battery-set cost do not appear in the current section. Differences between the two editions reflect what each article reports; they do not by themselves prove that the product, service, or price changed.
4. August Wi-Fi Smart Lock (4th Gen)
Questions This Section Answers
- Is August Wi-Fi Smart Lock (4th Gen) worth it for caregiver access if the senior needs a keypad?
- How much does the August Wi-Fi Smart Lock (4th Gen) plus a keypad cost for a caregiver setup?
August Wi-Fi Smart Lock (4th Gen) ranked fourth with five of seven platforms naming it. It is the best-ranked retrofit option: it mounts on the interior of an existing deadbolt, preserves the exterior keyed cylinder and existing keys, and adds built-in Wi-Fi for remote management [e4:openai:c1] [e4:google:1.4.1]. The August Wi-Fi Smart Lock (4th Gen) does not include a keypad, which is the single most important caveat for this buyer.
Why it ranked here. Five of seven platforms named it, with google and kimi placing it third and openai and perplexity placing it fourth. Its average listed position of 3.80 is the best among entities ranked fourth or lower.
Best suited for. Homes with a compatible single-cylinder deadbolt where retaining existing keys matters; caregivers who can manage access through the August app; and seniors who benefit from auto-lock, activity notifications, and DoorSense door-status monitoring [e4:openai:c1] [e4:anthropic:C1].
Main strengths for the use case. Built-in Wi-Fi enables remote lock/unlock, status checks, virtual guest keys, and activity history without a separate bridge [e4:openai:c1] [e4:perplexity:c1]. August states the app supports digital keys limited to periods ranging from minutes to weeks [e4:perplexity:c5]. Installation takes under 10 minutes and attaches to the interior of an existing deadbolt without changing the exterior hardware or keys [e4:anthropic:C1]. Physical keys remain functional as a mechanical fallback [e4:google:1.4.5].
Main limitations. The base lock has no keypad; code entry requires a separately purchased August or Yale keypad [e4:openai:c3] [e4:perplexity:c6]. Battery life is short: August states up to three months on two CR123 batteries, independent testing reported three to four months, and google reports some users exhausting batteries in as little as two months with weak Wi-Fi [e4:openai:c5] [e4:openai:c6] [e4:google:1.2.1].
What Changed Since August 2026
August Wi-Fi Smart Lock (4th Gen) moved up from No. 5 to No. 4, and platform mentions increased from 2 to 5. The September 2026 article keeps the August Wi-Fi Smart Lock (4th Gen) as a retrofit-first pick, but recasts it more sharply around caregiver access: it preserves the exterior keyed cylinder and existing keys, adds built-in Wi-Fi, and still lacks a keypad, now called the single most important caveat. The earlier write-up treated the missing keypad as a limitation among several, while the current one makes it the defining buyer question and says code entry requires a separately purchased August or Yale keypad. The current article reports installation takes under 10 minutes, whereas the earlier figure was approximately 10–20 minutes. Battery-life estimates previously given as roughly three months are no longer repeated. Prices are also no longer repeated. Differences between the two editions reflect what each article reports; they do not by themselves prove that the product, service, or price changed.
5. Ultraloq U-Bolt Pro
Questions This Section Answers
- Is Ultraloq U-Bolt Pro worth it for senior caregiver access, and is the model still supported?
- Which smart lock for caregiver access has the most backup entry methods if a fingerprint fails?
Ultraloq U-Bolt Pro ranked fifth with five of seven platforms naming it. It offers the widest set of entry methods in this index — keypad, fingerprint, app, proximity, gesture, and mechanical key — plus a micro-USB emergency power port [e5:anthropic:citation_1] [e5:anthropic:citation_3]. The Ultraloq U-Bolt Pro appears to be an older or no-longer-prominently-listed product, and Ultraloq's current catalog emphasizes newer Bolt models [e5:openai:c7] [e5:openai:c11].
Why it ranked here. Five of seven platforms named it, with google placing it fourth and kimi fifth. Its average listed position of 5.60 reflects a wider spread, including an eighth-place placement from deepseek.
Best suited for. Caregivers who will administer the lock by smartphone and issue temporary codes; seniors comfortable with a physical keypad and mechanical key backup; and households needing remote lock/unlock and code scheduling [e5:openai:c1] [e5:deepseek:ultraloq_product_overview].
Main strengths for the use case. The U-tec app supports permanent, temporary, scheduled, and one-time access with time/date and operation-count restrictions, and up to 50 unique codes [e5:anthropic:citation_1] [e5:anthropic:citation_3]. Built-in Wi-Fi on the Pro WiFi model removes the need for a separate bridge [e5:openai:c1]. The lock includes a concealed mechanical keyway and a micro-USB emergency-power interface [e5:openai:c4] [e5:google:device_report_guide]. A compatible door sensor reports open/closed status and enables door-aware auto-lock, priced at $18.00 on the official site [e5:openai:c9].
Main limitations. Battery life with Wi-Fi enabled is 3–6 months, and google reports users experiencing drain within three to four weeks when the Wi-Fi signal is weak [e5:anthropic:citation_2] [e5:google:utec_battery_drain]. The compact circular keypad layout is harder to use accurately than a standard linear keypad, and the fingerprint reader is documented to fail on dry, aged, or worn skin [e5:google:pcmag_review] [e5:google:utec_fingerprint_tips].
6. Level Lock+
Questions This Section Answers
- Is Level Lock+ worth it for caregiver access if the senior does not use an iPhone?
- What does a Level Lock+ caregiver setup cost once the keypad and Wi-Fi bridge are added?
Level Lock+ ranked sixth, named by two platforms but placed relatively high by both. It is the most discreet option in this index: the electronics sit inside the door, so the exterior looks like a conventional keyed deadbolt [e6:openai:c12] [e6:google:1.3.2]. The Level Lock+ has no built-in keypad, and remote access requires a compatible smart-home hub or the Level Connect Wi-Fi Bridge [e6:openai:c1] [e6:openai:c6].
Why it ranked here. Only two platforms named it during ranking discovery, which caps its platform share at 28.6%, but both placed it in the top five, producing an average listed position of 4.50 — the same average as Kwikset Halo, which was named by six platforms.
Best suited for. Apple-oriented households where iPhone, Apple Watch, or app-based access is acceptable; buyers who prioritize an exterior appearance nearly identical to a conventional keyed deadbolt; and caregiver arrangements using shared digital keys, keycards, or an optional Level Keypad [e6:openai:c1] [e6:perplexity:c1].
Main strengths for the use case. Apple Home Key supports tap-to-unlock with a compatible iPhone or Apple Watch [e6:perplexity:c1]. The lock retains a conventional exterior keyway and includes physical keys, so the door can still be operated mechanically if the battery is depleted [e6:openai:c8]. Level identifies Level Lock+ as BHMA Certified AAA, and the BHMA directory lists Level Lock+ [e6:openai:c13] [e6:openai:c14]. The Level app supports shared guest access and access history [e6:openai:c2].
Main limitations. No keypad is included, and temporary PIN access is not available from the base lock alone [e6:openai:c1] [e6:perplexity:c6]. Remote control requires a compatible smart-home hub or the Level Connect Wi-Fi Bridge, and independent coverage notes the bridge must sit within about 20 feet of the lock [e6:openai:c6] [e6:perplexity:c5].
What Changed Since August 2026
Level Lock+ remained at No. 6, and platform mentions were unchanged at 2. The September 2026 article reframes Level Lock+ around installation details rather than the earlier mixed-consensus verdict: it now describes the electronics sitting inside the door and remote access needing a compatible smart-home hub or the Level Connect Wi-Fi Bridge placed within about 20 feet. The write-up also drops the recommended configuration that paired the lock with a separate keypad and bridge. Price evidence is no longer repeated: the prior article cited a $79 keypad, a $249 listing, and a $407–$428 complete setup, none of which appear now. The earlier conflicting battery-life claims, from 6–12 months or up to 6 months, are also not repeated, and Apple Home Key is now framed as suitable mainly for Apple-oriented households. Differences between the two editions reflect what each article reports; they do not by themselves prove that the product, service, or price changed.
7. Defiant Deadbolt
Questions This Section Answers
- Is Defiant Deadbolt worth it for caregiver access, or does it lack remote management entirely?
- Which Defiant model supports remote caregiver codes, and how much does it cost?
Defiant Deadbolt ranked seventh, named by two platforms. The critical distinction for this buyer is that Defiant sells both non-connected keypad deadbolts and Hubspace Wi-Fi deadbolts, and only the Wi-Fi model supports remote management [e7:openai:C1] [e7:openai:C2]. The Defiant Deadbolt name covers both categories, and platform evidence repeatedly warns against applying features from one to the other.
Why it ranked here. Two platforms named it, with anthropic placing it third and kimi placing it eighth — the widest rank spread in the index. That spread reflects the product-line ambiguity rather than a disagreement about a single product.
Best suited for. Budget-conscious buyers who mainly need local keypad entry and physical-key backup; homes where a caregiver can be given a persistent or app-managed code; and secondary doors where premium hardware is not essential [e7:openai:C1] [e7:anthropic:c2].
Main strengths for the use case. The Hubspace model HSGCXX901ALPB is Wi-Fi and Bluetooth enabled and is advertised for control from anywhere through the Hubspace app, with one master code plus 100 user codes [e7:openai:C1]. Keypad models include an illuminated keypad and a physical key backup [e7:perplexity:c1] [e7:grok:1]. Advertised battery life reaches up to two years on some models [e7:openai:C5]. Installation requires only a Phillips screwdriver on standard pre-drilled doors [e7:anthropic:c2].
Main limitations. The non-connected keypad models have no remote access, no app, no audit trail, and no scheduled or temporary code management — all core requirements for this use case [e7:anthropic:c2] [e7:deepseek:c1] [e7:kimi:c1]. Even the Hubspace smart models reportedly lack flexible scheduling and time-based guest access options in the app [e7:google:2.1.3]. An independent review reported the smart model's touchpad lacked tactile guidance and had a loud button beep, and Home Depot customer reviews include reports of difficult programming and a small keypad target area [e7:openai:C4] [e7:openai:C3].
8. Eufy Smart Lock C220
Questions This Section Answers
- Is Eufy Smart Lock C220 worth it for caregiver access, and how long do its batteries actually last?
- Which smart lock for senior caregiver access has the lowest published price with built-in Wi-Fi?
Eufy Smart Lock C220 ranked eighth, named by two platforms. It is the lowest-priced option in this index with built-in Wi-Fi, a fingerprint reader, a keypad, a physical key, and a USB-C emergency power port [e8:openai:c1] [e8:google:1.2.3]. The Eufy Smart Lock C220 is the most directly relevant Eufy model for this use case because it combines keypad entry, built-in Wi-Fi remote control, and included keys.
Why it ranked here. Two platforms named it, with grok placing it third and perplexity placing it eighth. Its average listed position of 5.50 matches Defiant Deadbolt, but its best position of 3 is the same as Kwikset Halo's.
Best suited for. U.S. homes with a compatible standard deadbolt; caregivers who need remote lock/unlock, activity history, and managed guest or provider access; and households wanting multiple entry methods with no required hub or recurring lock-management subscription [e8:openai:c1] [e8:perplexity:c1].
Main strengths for the use case. Built-in Wi-Fi enables remote control without a bridge, and the app supports creating, managing, and deleting user profiles with guest access, event history, real-time notifications, and scheduled access [e8:openai:c1] [e8:perplexity:c1]. Google reports up to 100 unique PIN codes and 50 fingerprints, with schedule-based, one-time, or permanent temporary codes generated remotely [e8:google:1.2.4]. The lock includes two physical keys and a USB-C emergency power port [e8:google:1.2.3]. Installation is advertised as a no-drill install taking about 15 minutes on most standard U.S. and Canadian deadbolts [e8:perplexity:c1].
Main limitations. Battery-life information conflicts materially: Eufy's product page claims approximately eight months from eight AA batteries, while Eufy's support page states up to four months under a stated usage pattern [e8:openai:c1] [e8:openai:c3].
9. Lockly Model 7S Smart Lock
Questions This Section Answers
- Is Lockly Model 7S Smart Lock worth it for a senior who may struggle with a shuffling keypad?
- Does Lockly Model 7S support remote caregiver codes without buying the Secure Link Wi-Fi Hub?
Lockly Model 7S Smart Lock ranked ninth, named by two platforms. Its distinguishing feature is the PIN Genie keypad, which shuffles digit positions on every use to defeat shoulder-surfing, and it supports offline access codes that work without internet or an app download on the caregiver's phone [e9:openai:c1] [e9:openai:c4]. The Lockly Model 7S Smart Lock requires the separately sold Secure Link Wi-Fi Hub for true remote control [e9:openai:c1] [e9:grok:5].
Why it ranked here. Two platforms named it, with anthropic placing it fifth and deepseek placing it seventh. Its average listed position of 6.00 is the second-highest in the index.
Best suited for. Homes needing separate codes for family members, aides, and other trusted users; caregivers who can install and maintain the optional Secure Link Wi-Fi Hub; and users who value a physical emergency key and 9V emergency power [e9:openai:c1] [e9:openai:c4].
Main strengths for the use case. The Model 7S supports 6- to 8-digit access codes with a stated total capacity of up to 33 credentials, including administrator, sub-administrator, and single-use codes [e9:openai:c1]. The Lockly Home app can create single-use or limited-use Offline Access Codes, with a free tier of up to three per month [e9:openai:c1] [e9:anthropic:lockly-support-faq-oac]. The package includes two physical keys, a rekeyable 6-pin cylinder, and a 9V emergency power connection [e9:openai:c1] [e9:anthropic:lockly-user-manual-7s]. Battery life is rated up to 10 months under regular use [e9:openai:c1].
Main limitations. Remote access requires the separately sold Secure Link Wi-Fi Hub, and without it the app connection is primarily Bluetooth/local [e9:openai:c1] [e9:grok:5]. The changing PIN Genie keypad was flagged by an independent reviewer as "not very disability friendly" for neurodivergent individuals and those with cognitive processing needs [e9:anthropic:macsources-review-7s].
10. Aqara Smart Lock U100
Questions This Section Answers
- Is Aqara Smart Lock U100 worth it for caregiver access if the household has no Aqara hub?
- Which smart lock for senior caregiver access supports one-time and periodic codes with Apple Home Key?
Aqara Smart Lock U100 ranked tenth, named by two platforms. It offers the most granular code types in this index — permanent, periodic, and one-time passwords, with up to 75 simultaneous passwords and up to eight one-time passwords generated per hour [e10:anthropic:aqara_faq] [e10:openai:c1]. The Aqara Smart Lock U100 requires an Aqara hub such as the M2 or M3 for remote management, which is the central tradeoff for this buyer [e10:openai:c1] [e10:perplexity:10].
Why it ranked here. Two platforms named it, with deepseek placing it sixth and perplexity placing it tenth. Its average listed position of 8.00 is the highest in the index.
Best suited for. Homes where caregivers need temporary, periodic, or one-time access codes; households wanting multiple entry methods including fingerprint, keypad, Apple Home Key, and a physical key; and Apple Home users who already have a compatible Apple home hub [e10:openai:c1] [e10:google:1.3.3].
Main strengths for the use case. Aqara states the lock supports permanent, periodic, and one-time passwords, and the FAQ confirms a temporary one-time password can be generated in the Aqara Home app [e10:openai:c1] [e10:openai:c2]. The keypad is matte with spaced digits and anti-peep password entry, and independent reviews describe it as well lit and responsive [e10:anthropic:pcmag_2024_review] [e10:anthropic:homekitnews_2023_review]. The lock includes two mechanical keys and an exterior USB-C emergency power port [e10:openai:c1]. Battery life is claimed at up to approximately eight months on four AA batteries under a stated test scenario [e10:openai:c1].
Main limitations. Remote locking, unlocking, password management, activity monitoring, and logs require a supporting Aqara hub [e10:openai:c4] [e10:perplexity:10]. Users report that remote code creation requires enabling the "Remote Unlocking" setting while physically near the lock over Bluetooth first [e10:google:1.2.2] [e10:google:1.2.6].
What the Cross-Platform Study Reveals About This Market
Questions This Section Answers
- What do AI platforms consistently recommend for senior keyless entry and caregiver access?
- Which smart lock features do AI platforms treat as essential for caregiver access?
Three patterns dominate the cross-platform evidence. First, hub-free remote access is the single strongest differentiator: the top three entities all connect directly to Wi-Fi, while the bottom four all require a hub, bridge, or Apple home hub for remote management [e1:openai:c_encode] [e2:openai:c1] [e3:openai:c1] [e6:openai:c6] [e9:openai:c1] [e10:openai:c4]. Second, physical key backup appears in the evidence for every ranked entity, and platforms treat it as a baseline requirement rather than a differentiator [e1:openai:c_encode_specs] [e2:anthropic:c4] [e3:openai:c1] [e4:google:1.4.5] [e5:openai:c4] [e6:openai:c8] [e7:perplexity:c1] [e8:google:1.2.3] [e9:openai:c1] [e10:openai:c1].
Where the AI Platforms Agreed
Questions This Section Answers
- Which smart lock do AI platforms agree is the best overall for caregiver access?
Platforms agreed most strongly on the top two. Schlage Encode and Yale Assure Lock 2 were the only entities named by all seven platforms, and both were placed first or second by every platform that named them [e1:openai:c_encode] [e2:openai:c1]. Both were consistently described as supporting remote lock/unlock, temporary or scheduled codes, activity history, and a physical key backup [e1:anthropic:citation_2] [e2:anthropic:c1].
Platforms also agreed on several structural points. Every platform that assessed Kwikset Halo identified battery drain from the built-in Wi-Fi radio as the primary tradeoff [e3:openai:c7] [e3:anthropic:source_6] [e3:google:1.2.9] [e3:deepseek:C1] [e3:kimi:home-security-reviews-2026] [e3:perplexity:c15]. Every platform that assessed August Wi-Fi Smart Lock (4th Gen) noted that the base lock lacks a keypad [e4:openai:c3] [e4:anthropic:C1] [e4:deepseek:c1] [e4:grok:web:0] [e4:perplexity:c6].
Where the AI Platforms Disagreed
Questions This Section Answers
- Why do AI platforms disagree about smart lock security ratings and battery life for caregiver use?
Disagreements cluster in four areas. Security ratings were the most frequent conflict: Schlage Encode was reported as Grade 2 by one platform and Grade 1 or AAA by three others [e1:kimi:home-security-reviews-2026] [e1:anthropic:citation_3]; Kwikset Halo was reported as Grade AAA by three platforms and Grade 3 by another [e3:google:1.4.7] [e3:kimi:home-security-reviews-2026]; Eufy C220 was reported as Grade 2 by one platform and Grade 3 by four others [e8:deepseek:c8] [e8:openai:c1]; and Aqara U100 was reported as Grade 2 by one platform and Level 3 by four others [e10:kimi:C1] [e10:openai:c1].
How Buyers Should Choose
Questions This Section Answers
- What should a buyer check before choosing a smart lock for senior caregiver access?
- Which smart lock for caregiver access is best if the home has unreliable Wi-Fi?
Start with the entry method the senior will actually use. If the senior will enter a PIN, prioritize a physical push-button keypad over a touchscreen, because no platform verified senior-friendly readability for any touchscreen model in this index [e1:perplexity:c13] [e3:openai:c5] [e5:google:pcmag_review]. If the senior will use a fingerprint, note that platforms documented fingerprint failures on dry, aged, or worn skin for Ultraloq and Aqara [e5:google:utec_fingerprint_tips] [e10:google:2.1.6].
Second, decide whether remote management must work without extra hardware. Schlage Encode, Yale Assure Lock 2, Kwikset Halo, August Wi-Fi Smart Lock (4th Gen), and Eufy C220 connect directly to Wi-Fi [e1:openai:c_encode] [e2:openai:c1] [e3:openai:c1] [e4:openai:c1] [e8:openai:c1]. Level Lock+, Lockly Model 7S, and Aqara U100 require a hub or bridge [e6:openai:c6] [e9:openai:c1] [e10:openai:c4].
Methodology
This index was built from a single standardized prompt sent once to each of 7 included AI platforms: openai, anthropic, deepseek, grok, perplexity, kimi, and google. The study date is 2026-09-27. Each platform was asked to identify the best smart locks for seniors and caregivers who want keyless entry, remote lock management, and temporary access codes for family or care providers in the United States.
Ranking used three sequential criteria: the number of platforms that named an entity during ranking discovery, then the average listed position across those platforms, then the best listed position. An entity qualified for the final index only if it was named by at least two platforms. Fifteen unique entities were named across all platforms, and 10 met the two-platform threshold.
Platform mentions count only ranking-discovery mentions. Several platforms completed a fit assessment for entities they did not name during ranking discovery, and those assessments inform the buyer-fit detail in each ranked section but do not change the ranking order.
Methodology Limitations
Several limitations apply to this index. The study used one standardized prompt sent once to each included platform, so results reflect a single snapshot rather than repeated testing. AI answers can vary by date, wording, location, account state, model, interface, browsing configuration, and the sources retrieved.
Platform-reported research dates differ from the authoritative run date of 2026-09-27. Anthropic reported 2025-04-11 for Schlage Encode and 2026-01-20 for Yale Assure Lock 2; deepseek reported 2026-01-27 and 2026-01-28 respectively; and other entities show similar discrepancies. These dates are provenance metadata and do not independently prove freshness.
Not every platform completed a fit assessment for every entity it named. For Yale Assure Lock 2, 6 of 7 included platforms returned a usable fit assessment, so the fit findings should not be described as unanimous.
Company-owned citations materially outnumber independent citations in several entity bundles, including Schlage Encode (30 owned versus 15 independent), Kwikset Halo (29 owned versus 22 independent), and Lockly Model 7S (26 owned versus 13 independent). Company claims are not independently verified.
Final Verdict
Schlage Encode is the consensus leader for keyless entry and caregiver access, named by all 7 platforms with an average listed position of 1.29. It covers the core requirements — keypad entry, built-in Wi-Fi, remote management, up to 100 access codes, activity history, and a physical key backup — without a mandatory subscription [e1:openai:c_encode] [e1:perplexity:c1]. Its main tradeoffs are six-month battery life, 2.4 GHz Wi-Fi dependence, and unverified senior keypad readability [e1:openai:c_encode_specs] [e1:perplexity:c13].
Yale Assure Lock 2 is the strongest alternative for scheduled temporary and recurring codes with a keyed backup, but its three-month Wi-Fi battery life and reported remote-command delays are material [e2:openai:c5] [e2:openai:c4]. Kwikset Halo is the best fit when a physical push-button keypad or fingerprint entry matters more than a touchscreen, provided the household can absorb frequent battery changes [e3:openai:c2] [e3:google:1.2.9].
Buyers whose priority is simple, readable temporary PIN access should prefer a keypad-first model and verify the exact SKU, door compatibility, and battery expectations before purchase.
Frequently Asked Questions
Which smart lock is best for seniors and caregivers in 2026?
Schlage Encode ranked first, named by all 7 platforms with an average listed position of 1.29. It combines keypad entry, built-in Wi-Fi, up to 100 access codes, activity history, and a physical key backup [e1:openai:c_encode] [e1:perplexity:c1].
Do any of these locks require a monthly subscription?
No mandatory subscription was identified for Schlage Encode, Yale Assure Lock 2, Kwikset Halo, August Wi-Fi Smart Lock (4th Gen), Eufy C220, or Aqara U100 [e1:openai:c_encode_specs] [e2:openai:c1] [e3:openai:c1] [e4:openai:c1] [e8:openai:c1] [e10:openai:c1]. Lockly notes that LocklyOS may be required for more than three Offline Access Codes per month, but current pricing was not verified [e9:openai:c1].
Which locks need a hub for remote caregiver access?
Level Lock+ requires a compatible smart-home hub or the Level Connect Wi-Fi Bridge [e6:openai:c6]. Lockly Model 7S requires the Secure Link Wi-Fi Hub [e9:openai:c1].
Consolidated Sources
Company-Owned Sources
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- Smart Lock with Wi-Fi Bridge: https://www.eufy.com/products/t8500083
- Smart Lock C220 - Secure, Convenient Home Access - eufy US: https://www.eufy.com/products/t8506111?fliter_category=except-accessories
- Smart Lock C220 - Secure, Convenient Home Access: https://www.eufy.com/products/t8506115
- Smart Lock C220 - eufy US Product Specifications Page: https://www.eufy.com/products/t8506125
- Defiant Single Cylinder Square Electronic Keypad Deadbolt Matte Black - Home Depot Canada: https://www.homedepot.ca/product/defiant-single-cylinder-square-electronic-keypad-deadbolt-matte-black/1001877046
- Defiant - Electronic Deadbolts - The Home Depot: https://www.homedepot.com/
- Defiant Electronic Deadbolts ANSI Grade 3 Category: https://www.homedepot.com/b/Hardware-Door-Hardware-Door-Locks-Electronic-Door-Locks/Defiant/Single-Cylinder-Deadbolt/ANSI-Grade-3-Good/N-5yc1vZc29lZfwZ1z118voZ1z17ho6
- Defiant Hubspace Wi-Fi Electronic Door Locks: https://www.homedepot.com/b/Hardware-Door-Hardware-Door-Locks/Electronic-Door-Locks/Defiant/Wi-Fi/Hubspace/N-5yc1vZc2bdZfwZ1z0kb2sZ1z1pr0w
- Defiant Electronic Deadbolt with Keypad - The Home Depot: https://www.homedepot.com/b/Hardware-Door-Locks-Deadbolts/Defiant/N-5yc1vZc23oZ1z0v3ie
- Defiant Castle Satin Nickel Electronic Single Cylinder Keypad Deadbolt Lock: https://www.homedepot.com/p/313123224
- Defiant Single Cylinder Square Electronic Keypad Deadbolt Matte Black DK01-MB: https://www.homedepot.com/p/320580304
- Defiant Square Compact Matte Black Electronic Single Cylinder Deadbolt Wi-Fi Enabled Powered by Hubspace: https://www.homedepot.com/p/330353477
- Defiant Electronic Deadbolt with Keypad - Home Depot: https://www.homedepot.com/p/Defiant-Electronic-Deadbolt-with-Keypad/313929647
- Defiant Square Satin Nickel Compact Touch Electronic Deadbolt - Home Depot US: https://www.homedepot.com/p/Defiant-Square-Satin-Nickel-Compact-Touch-Electronic-Deadbolt-32GC8X2D01AHP/325761782
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- Kwikset Halo Smart Locks: https://www.kwikset.com
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- Kwikset Announces Halo Touch Fingerprint Smart Lock: https://www.kwikset.com/about-kwikset/news-press/press-releases/2020/01/03/kwikset-announces-new-halo-touch-fingerprint-smart-lock-at-ces-2020
- Kwikset Halo Smart Lock Product Information: https://www.kwikset.com/halo
- Halo Touch Wi-Fi Enabled Smart Door Lock with Fingerprint Access: https://www.kwikset.com/halo-touch
- Satin Nickel Halo Keypad Wi‑Fi Enabled Smart Lock: https://www.kwikset.com/products/detail/halo-keypad-wi-fi-enabled-smart-lock
- Halo Select Contemporary Touchscreen Wi-Fi and Matter Enabled Smart Lock: https://www.kwikset.com/products/detail/halo-select-contemporary-touchscreen-wi-fi-and-matter-enabled-smart-lock
- Halo Select Plus Touchscreen Wi‑Fi and Matter Enabled Smart Lock with Apple Home Keys: https://www.kwikset.com/products/detail/halo-select-plus-touchscreen-wi-fi-and-matter-enabled-smart-lock-with-apple-home-keys
- Matte Black Halo Select Touchscreen Wi-Fi and Matter Enabled Smart Lock | Kwikset: https://www.kwikset.com/products/detail/halo-select-touchscreen-wi-fi-and-matter-enabled-smart-lock
- Halo Touch Contemporary Fingerprint Wi‑Fi Enabled Smart Lock: https://www.kwikset.com/products/detail/halo-touch-contemporary-fingerprint-wi-fi-enabled-smart-lock
- Fingerprint Door Lock - Halo Touch - Smart WiFi Biometric Deadbolt - Kwikset: https://www.kwikset.com/products/detail/halo-touch-fingerprint-smart-lock
- Kwikset Halo Touchscreen Wi-Fi Enabled Smart Lock Product Page: https://www.kwikset.com/products/detail/halo-touchscreen-wi-fi-enabled-smart-lock
- Kwikset Smart Lock Models Comparison: https://www.kwikset.com/smart-locks
- Kwikset Smart Locks Application: https://www.kwikset.com/smart-locks/app
- Kwikset App Overview: https://www.kwikset.com/smart-locks/kwikset-app
- Kwikset Support: How to Share an Access Code Using the Kwikset App: https://www.kwikset.com/support/answers/how-do-i-share-an-access-code-using-the-kwikset-app
- How does battery level affect the performance of my smart lock?: https://www.kwikset.com/support/answers/how-does-battery-level-affect-the-performance-of-my-smart-lock
- Kwikset Security Features | Kwikset: https://www.kwikset.com/support/answers/kwikset-security-features
- Support Information for Satin Nickel Halo Touchscreen Wi-Fi Enabled Smart Lock | Kwikset: https://www.kwikset.com/support/product/halo-touchscreen-wi-fi-enabled-smart-lock
- Halo Select Touchscreen Wi‑Fi and Matter Enabled Smart Lock: https://www.kwikset.com/support/productdetail/halo-select-touchscreen-wi-fi-and-matter-enabled-smart-lock
- Which Schlage Encode™ wifi smart lock is right for me?: https://www.schlage.ca/en/blog/product_updates/which-schlage-encode-wifi-smart-lock.html
- Schlage Encode Vacation Rental Tip Sheet: https://www.schlage.com/content/dam/sch-us/documents/pdf/schlage-encode-deadbolt-home-sharing-tip-sheet.pdf
- Limited product warranty: https://www.schlage.com/content/dam/sch-us/documents/pdf/schlage_residential_warranty.pdf
- 10 things you can do with the Schlage Home app.: https://www.schlage.com/en/blog/product_updates/10-things-you-can-do-with-schlage-home-app.html
- Which Schlage Encode wifi smart lock is right for me?: https://www.schlage.com/en/blog/product_updates/which-schlage-encode-wifi-smart-lock.html
- 10 things you can do with the Schlage Home app.: https://www.schlage.com/en/home.html
- Schlage Arrive Smart WiFi Deadbolt with Remsen Trim: https://www.schlage.com/en/home/products/BE459WBRMNFFF.html
- Schlage Encode™ Smart WiFi Deadbolt with Camelot Trim: https://www.schlage.com/en/home/products/BE489WBCAMFFF.html
- Schlage Encode Smart WiFi Deadbolt with Century Trim: https://www.schlage.com/en/home/products/BE489WBCENFFF.html
- Schlage Encode Plus Smart WiFi Deadbolt with Camelot Trim: https://www.schlage.com/en/home/products/BE499WBCAMFFF.html
- Schlage Encode Plus™ Smart WiFi Deadbolt with Century Trim: https://www.schlage.com/en/home/products/BE499WBCENFFF.html
- Schlage Encode Plus Smart WiFi Deadbolt: https://www.schlage.com/en/home/smart-locks/encode-plus.html
- WiFi Smart Lock with Smart Home Integration | Schlage Encode™: https://www.schlage.com/en/home/smart-locks/encode.html
- Smart Lock App to Control Your Home from Your Phone: https://www.schlage.com/en/home/smart-locks/schlage-app.html
- Schlage Encode™ FAQs | Wifi Deadbolt Support | Smart lock: https://www.schlage.com/en/home/support/faqs/schlage-encode.html
- Official pricing and terms source: https://www.schlage.com/en/home/terms-of-purchase.html
- Schlage Encode Smart WiFi Deadbolt: https://www.schlage.com/smart-locks/encode.html
- How to Add an Access Code: https://www.support.lockly.com/article/adding-an-access-code/
- Product Features: https://www.support.lockly.com/article/product-features/
- Lockly Support Desk FAQ and Model 7S Manual Resources: https://www.support.lockly.com/faq/
- Do Lockly Locks Work When the Power Is Out?: https://www.support.lockly.com/faq/do-lockly-locks-work-when-the-power-is-out/
- Access and Control: What is an Offline Access Code (OAC)?: https://www.support.lockly.com/faq/offline-access-code/
- U-Bolt Pro WiFi: https://www.utecliving.com/products/u-bolt-pro-wifi
- Yale Asia-Pacific official site: https://www.yale.com/en-sg/asia-pacific/
- Official pricing and terms source: https://www.yale.com/en-sg/asia-pacific/terms-of-use/
- Yale Assure Lock 2 product family (official): https://www.yalehome.com/en/
Independent Sources
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- Level Lock+ review: Must-have HomeKit smart lock with Apple Home Key support: https://appleinsider.com/articles/22/10/21/level-lock-review-must-have-homekit-smart-lock-with-apple-home-key-support
- Kwikset App on the App Store: https://apps.apple.com/us/app/kwikset/id1356578340
- LOCKLY® App - App Store: https://apps.apple.com/us/app/lockly/id1408331821
- Kwikset Halo Lock Reviews: https://butterflymx.com/blog/kwikset-halo-lock-review/
- Level Lock+ (Matter) - CSA-IOT Product Certification: https://csa-iot.org/csa_product/level-lock-matter/
- ULTRALOQ U-Bolt Pro Fingerprint Door Lock User Guide: https://device.report/ultraloq/u-bolt-pro-fingerprint-door-lock-manual
- KWIKSET HALO SMART LOCK REVIEW: https://focusedinsight.net/kwikset-halo-smart-lock/
- August Wi-Fi Smart Lock (4th Gen): price, specs & release date: https://frontdeskreview.com/product/smart-locks/august-wifi-smart-lock-4th-gen/
- Compare Smart Lock Automation - GuestsKey: https://guestskey.com/compare
- Best Smart Locks for Caregivers 2026: Named Access, Privacy, Emergencies, and Outages - Home Security Reviews: https://home-security-reviews.com/best-smart-locks-for-caregivers-2026/
- Aqara U100 Smart Door Lock Review: https://homekitnews.com/2023/06/14/aqara-smart-lock-u100-review/
- How to Use August Smart Lock for Guest and Temporary Access: https://ilockey.com/how-to-use-august-smart-lock/
- PGD7S User Manual 211009: https://images.thdstatic.com/catalog/pdfImages/eb/ebbaadff-f8e1-4217-9d55-bc5155f2b525.pdf
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- Lockly 7S Smart Deadbolt 2022 Review: https://macsources.com/lockly-7s-smart-deadbolt-2022-review/
- Defiant Electronic Deadbolt Single Cylinder Keypad Door Locks User Manual: https://manuals.plus/asin/B018HQLKMU
- Defiant Electronic Deadbolt Square Keyless Entry Satin Nickel User Manual: https://manuals.plus/asin/B06X1FRRTR
- eufy Security Smart Lock C220 with Handleset User Manual: https://manuals.plus/asin/B0DBQG9L1Q
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- Defiant Electronic Keypad Deadbolt Installation Guide: https://manuals.plus/m/28e7881fc07e63b1bc5c313809fdb75131beea12a9b7f5e7c5575402433b4154
- Sell Sheet-7S SG 25SEP20[2]: https://manuals.plus/m/7754f9d45e54aebe86d262d057a164b3efeecc2efb6b9074ba2f48ef5434d284_optim.pdf
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- Schlage Home - Apps on Google Play: https://play.google.com/store/apps/details?id=com.allegion.leopard&hl=en_US
- LOCKLY® - Apps on Google Play: https://play.google.com/store/apps/details?id=com.lockly.smartlock&hl=en_US
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- Ultraloq U-Bolt Pro Wi-Fi Review: https://reviewed.usatoday.com/smarthome/content/ultraloq-u-bolt-pro-wi-fi-review
- Level Lock+ Review 2026: https://rottenwifi.com/level-lock-long-term-review-is-it-still-the-best-smart-lock/
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- August Wi-Fi Smart Lock Battery Life & Usage: https://shopsavvy.com/blog/august-wi-fi-smart-lock-battery-life
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- Review: Level Lock+ brings Apple home key support to the stealth smart lock: https://sixcolors.com/post/2024/01/review-level-lock-brings-apple-home-key-support-to-the-stealth-smart-lock/
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- Kwikset Halo Review: Affordable Smart Lock Tested: https://smart-wired.com/smart-locks/kwikset-halo-review/
- Ultraloq U-Bolt Pro Review: The Most Feature-Packed Smart Lock?: https://smart-wired.com/smart-locks/ultraloq-review/
- Yale Assure Lock 2 Review: https://smartdeviceranked.com/yale-assure-lock-2-review/
- Aqara Smart Lock U100: Review & Specs: https://smarthomecompared.com/door-locks/aqara-smart-lock-u100
- Schlage Encode: Review & Specs - Door Locks: https://smarthomecompared.com/door-locks/schlage-encode
- ULTRALOQ U-Bolt Pro WiFi: Review & Specs: https://smarthomecompared.com/door-locks/ultraloq-u-bolt-pro-wifi
- August Wi-Fi Smart Lock Review: Setup and Installation Test: https://smarthomedeck.com/reviews/august-wifi-smart-lock-setup-review
- Level Lock+ Review: The Smart Lock That Doesn't Look Like One: https://smarthomeu.com/reviews/level-lock-review-smart-lock-doesnt-look-one
- Kwikset Smart Lock Battery Life: What to Expect: https://smartlockadvice.com/kwikset-smart-lock-battery-life/
- 6 Best Lockly Smart Locks of 2025: https://smartlockadvice.com/lockly-smart-lock/
- Ultraloq U-Bolt Pro WiFi review: Keypad, biometrics, and auto-locking smart deadbolt FTW: https://techaeris.com/2022/11/08/ultraloq-u-bolt-pro-wifi-review-keypad-biometrics-auto-locking-smart-deadbolt-ftw/
- Level's new Level Lock+ with Apple Home Key is smart lock perfection: https://techcrunch.com/2022/10/24/level-lock-plus-with-apple-home-key-review/
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- Kwikset’s newest smart lock gets almost everything right: https://themarketscafe.com/kwiksets-newest-smart-lock-gets-almost-everything-right/
- Kwikset Halo Select Review: Wi-Fi and Matter in a Single Lock | The Verge: https://thevergetech.blog/smart-home-review/679903/kwikset-halo-select-smart-lock-review
- Aqara Smart Lock U100 Review 2024 - PCMag UK: https://uk.pcmag.com/smart-locks/151699/aqara-smart-lock-u100
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- Eufy Smart Lock Battery Life Expectations Group Discussion: https://vertexaisearch.cloud.google.com/grounding-api-redirect/AUZIYQHjrSrtfWNpcW5VifFX883L5w0e0pIl7JbhErmXJa3I7wBeITjIEzptQtHjXj6_IVGb5QEP2ElqedYWRleJVn8I6c8ZSa0QSHccrGmLOMzg2OlUR81t6nfNB8Wnx5pMxVGIdiLlBw2YF6cAIQIU7zwQPB5SzIKl46_Fd0aOgMjQeFN5a5gie8pEipQBQH3txw==
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- Anker eufy Security Smart Lock C220 review excerpts: https://www.amazon.ca/eufy-Security-Fingerprint-Deadbolt-Waterproof/dp/B0CYYZ6WRW
- Yale Assure Lock 2 Keypad with Wi-Fi, Keyed - retailer product listing: https://www.amazon.com/
- ULTRALOQ U-Bolt Pro WiFi Smart Lock: https://www.amazon.com/clp/B0C61DKKL8
- Amazon listing: Ultraloq U-Bolt Pro WiFi: https://www.amazon.com/dp/B08K3J7J7Q
- Eufy Security app reviews: https://www.amazon.com/Eufy-Security-Smart-Lock-C220/product-reviews/B0BQ5M6J4D
- Lockly Smart Lock Model 7S: https://www.amazon.com/Lockly-Bluetooth-Keyless-Genie%C2%AE-Keypad/dp/B0B7RM7R4B
- Lockly App Reviews: https://www.amazon.com/Lockly-Secure-Pro-Deadbolt/product-reviews/B07YVJ5L7S
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- August Wi-Fi Smart Lock (4th Generation) review: Simple, speedy security: https://www.androidpolice.com/august-wifi-smart-lock4th-gen-review/
- Defiant Square Satin Nickel Smart Wi-Fi Deadbolt Powered By Hubspace: https://www.arbor-home.com/cdn/shopifycloud/storefront/assets/no-image-2048-a2addb12_1024x1024.gif
- Ultraloq U-Bolt Pro WiFi Smart Lock: Tested & Reviewed: https://www.art-of-lockpicking.com/ultraloq-u-bolt-pro-wifi-review/
- Lockly Model 7S Deadbolt Smart Lock with Touchscreen - Best Buy: https://www.bestbuy.com/site/lockly-model-7s-deadbolt-smart-lock-with-touchscreen-key-access-auto-lock-bluetooth-app-control-satin-nickel/6607716.p
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- Aqara Smart Lock U100: https://www.cnet.com/home/security/aqara-smart-lock-u100-review/
- August Wi-Fi Smart Lock review: Still our favorite: https://www.cnet.com/home/security/august-wi-fi-smart-lock-review/
- Best smart locks: https://www.cnet.com/home/security/best-smart-locks/
- Kwikset Halo review: Convenient, but Not the Smartest: https://www.cnet.com/home/security/kwikset-halo-review-one-touch-convenience-and-old-school-options/
- Prime Members Can Lock In $55 Off the Aqara Smart Lock U100 - CNET: https://www.cnet.com/home/security/prime-members-can-lock-in-55-off-the-aqara-smart-lock-u100/
- Ultraloq U-Bolt Pro WiFi: The Best Smart Lock for Fingerprint Access?: https://www.cnet.com/home/security/ultraloq-u-bolt-pro-wifi-review/
- Level Lock+ Review: https://www.cnet.com/reviews/level-lock-plus-review/
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- Yale Assure Lock 2 Touch Key-Free with Wi-Fi: https://www.crutchfield.com/p_198450WF1R/Yale-Assure-Lock-2-Touch-Key-Free-with-Wi-Fi-Oil-Rubbed-Bronze.html
- Yale Assure Lock 2 Key-Free Touchscreen Deadbolt: https://www.crutchfield.com/p_198Y450WFR/Yale-Assure-Lock-2-Key-Free-Touchscreen-Deadbolt-Oil-rubbed-Bronze.html
- August Wi-Fi Smart Lock (Matte Black): https://www.crutchfield.com/p_967AWFSLMB/August-Wi-Fi-Smart-Lock-Matte-Black.html
- eufy by Anker Smart Lock C220 at Crutchfield: https://www.crutchfield.com/S-Y8WgAEq07gm/p_318T850611/eufy-by-Anker-Smart-Lock-C220.html
- Best Schlage Smart Lock: Encode Plus, Encode & Connect: https://www.dumbswitches.com/schlage-smart-lock/
- Defiant Smart Wi-Fi Deadbolt Review: https://www.forbes.com/sites/forbes-personal-shopper/2023/05/09/defiant-smart-wi-fi-deadbolt-review/
- August Home Wi-Fi Connected Smart Keyless Entry Door Lock review: https://www.gadinsider.com/B082VXK9CK-august-home-wi-fi-connected-smart-keyless-entry-door-lock-review-a-retrofit-smart-ceadbolt-with-built-in-wi-fi-and-auto-unlock-242
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- U-Tec Ultraloq U-Bolt Pro Wi-Fi Smart Deadbolt Lock Review: https://www.gearbrain.com/ultraloq-u-bolt-pro-wifi-review-2661555541.html
- U-Tec Ultraloq U-Bolt Pro Wi-Fi Smart Deadbolt Lock Review: https://www.gearbrain.com/ultraloq-ubolt-pro-wifi-lock-review-2671253802.html
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- U-Tec U-Bolt-Pro Specifications: https://www.homecontrols.com/products/pdfs/UT-UTec/UTUBOLTPRO-Specifications.pdf
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- Yale Assure Lock 2 Keypad with Wi‑Fi - Home Controls: https://www.homecontrols.com/Yale-Assure-Lock-2-Keypad-Wi-Fi-YAYRD410WFIx
- Yale Assure Lock 2 Touchscreen with Wi‑Fi - Home Controls: https://www.homecontrols.com/Yale-Assure-Lock-2-Touchscreen-Wi-Fi-YAYRD420WFIx
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- Schlage Encode review: an honest evaluation for homeowners and security professionals: https://www.lowratelocksmith.com/blog/schlage-encode-review/
- Review: Aqara's U100 Smart Lock Offers Home Key Support, Fingerprint Unlocking and More: https://www.macrumors.com/review/aqara-u100-smart-lock/
- Level Lock+ (Matter) Information and Matter Certification: https://www.matteralpha.com/level-home/level-lock-matter-p1768
- August Wi-Fi Smart Lock Review: The Best Just Got Better: https://www.newsweek.com/august-wi-fi-smart-lock-review-1547372
- The 4 Best Smart Locks of 2023: https://www.nytimes.com/wirecutter/reviews/best-smart-lock/
- The 6 Best Smart Locks of 2026: https://www.nytimes.com/wirecutter/reviews/the-best-smart-lock/
- Aqara Smart Lock U100 Review - PCMag: https://www.pcmag.com/reviews/aqara-smart-lock-u100
- Kwikset Halo Touch Fingerprint Smart Lock Review: https://www.pcmag.com/reviews/kwikset-halo-touch-fingerprint-smart-lock
- Schlage Encode Smart WiFi Deadbolt Review | PCMag: https://www.pcmag.com/reviews/schlage-encode-smart-wifi-deadbolt
- Ultraloq U-Bolt Pro Wi-Fi Smart Lock Review: https://www.pcmag.com/reviews/ultraloq-u-bolt-pro-wi-fi
- Ultraloq U-Bolt Pro WiFi Review: https://www.pcmag.com/reviews/ultraloq-u-bolt-pro-wifi
- Yale Assure Lock 2 Review: https://www.pcmag.com/reviews/yale-assure-lock-2
- Yale Assure Lock 2 Review: https://www.pcmag.com/reviews/yale-assure-lock-2?taid=63f5a4deee1b6e00013d5a1d
- Level Lock+ review: https://www.pcworld.com/article/2011079/level-lock-smart-deadbolt-review.html
- Schlage Encode Plus Smart WiFi Deadbolt review: https://www.pcworld.com/article/2283601/schlage-encode-plus-smart-wifi-deadbolt-review.html
- Kwikset Halo Select Review: A Smart Compromise | PC World: https://www.pcworld.com/article/2590383/kwikset-halo-select-review.html
- Level Lock Pro review: https://www.pcworld.com/article/2887364/level-lock-pro-review.html
- Kwikset Halo Touch review: This smart lock opens to your fingerprint: https://www.pcworld.com/article/578996/kwikset-halo-touch-review.html
- Best Lockly Smart Lock - 2026 Reviews: https://www.poshsevenreviews.com/best-lockly-smart-locks/
- Schlage Encode Smart WiFi Deadbolt Review: https://www.protoolreviews.com/schlage-encode-smart-wifi-deadbolt-review/
- Kwikset Halo Battery Drainage: https://www.reddit.com/r/airbnb_hosts/comments/1aud3co/kwikset_halo_battery_drainage/
- Aqara U100 does not allow me to remotely set / update codes - Reddit: https://www.reddit.com/r/Aqara/comments/1ah5f9g/aqara_u100_does_not_allow_me_to_remotely_set/
- ULTRALOQ U-Bolt Pro WiFi Smart Lock on r/AusRenovation: https://www.reddit.com/r/AusRenovation/comments/1akd050/ultraloq_ubolt_pro_wifi_smart_lock/
- State of smart locks in late 2024? on r/homeassistant: https://www.reddit.com/r/homeassistant/comments/1gk85sc/state_of_smart_locks_in_late_2024/
- State of smart locks in late 2024? - Reddit: https://www.reddit.com/r/homeassistant/comments/1gkf94p/state_of_smart_locks_in_late_2024/
- kwikset halo smart lock - Experience and review: https://www.reddit.com/r/homeautomation/comments/10lv99v/kwikset_halo_smart_lock_experience_and_review/
- Schlage Encode Plus user reviews and forum discussion: https://www.reddit.com/r/homeautomation/comments/schlage_encode_plus/
- Opinions on Ultraloq?: https://www.reddit.com/r/homeautomation/comments/t3bl0c/opinions_on_ultraloq/
- Reddit discussion on Ultraloq app experience: https://www.reddit.com/r/homeautomation/comments/ultraloq/
- Aqara U100 user reports on connectivity and reliability: https://www.reddit.com/r/HomeKit/comments/1455nyb/mega_review_aqara_smart_video_doorbell_g4_camera/
- Ultraloq U-Bolt Pro WiFi owner reports: https://www.reddit.com/r/smarthome/comments/18xs7cf/ultraloq_u_bolt_pro_z_wave/
- Ultraloq U-Bolt Pro Wi-Fi Review: https://www.reviewed.com/smarthome/content/ultraloq-u-bolt-pro-wi-fi-review
- Smart Lock Comparison: August vs Yale vs Schlage - Revimote: https://www.revimote.com/compare/august-vs-yale-vs-schlage-smart-locks
- Best Smart Locks: https://www.rtings.com/doorlock/reviews/best/by-feature/smart
- 2026 Smart Door Lock Buying Guide - SafeHome.org: https://www.safehome.org
- Kwikset Halo Touch Review and Pricing 2026: https://www.safehome.org/smart-locks/kwikset-halo-touchscreen-wifi-smart-lock-review/
- Best Smart Locks of 2026: https://www.safewise.com/resources/electronic-door-locks-buyers-guide/
- Kwikset Smart Lock Review & Pricing in 2026: https://www.security.org/smart-locks/kwikset/
- August WiFi Smart Lock 4th Gen Review: https://www.smarthomeexplorer.com/reviews/smart-security/august-wifi-smart-lock-4th-gen-2
- Yale Assure Lock 2 Review: 8.5/10 Expert Consensus | Smart Home Explorer: https://www.smarthomeexplorer.com/reviews/smart-security/yale-assure-lock-2
- The all-new Level Lock+ supports Apple Home Keys: https://www.techhive.com/article/1359133/the-all-new-level-lock-supports-apple-home-keys.html
- Aqara Smart Lock U100 review: https://www.techhive.com/article/1487184/aqara-smart-lock-u100-review.html
- Yale Assure Lock 2 Key-Free Touchscreen with Bluetooth review: https://www.techhive.com/article/2253424/yale-assure-lock-2-key-free-touchscreen-with-bluetooth-review.html
- Ultraloq U-Bolt Pro WiFi review: A smart lock with a healthy facelift: https://www.techhive.com/article/579975/ultraloq-u-bolt-pro-wifi-review.html
- Yale Assure Lock 2 review: https://www.techradar.com/reviews/yale-assure-lock-2
- Defiant Electronic Deadbolt Review: https://www.thespruce.com/best-smart-locks-4156656
- August Wi-Fi Smart Lock (4th Gen) review: https://www.tomsguide.com/reviews/august-wifi-smart-lock
- Kwikset Halo Select review: https://www.tomsguide.com/reviews/kwikset-halo-select
- Kwikset Halo Wi-Fi Smart Lock Review: https://www.tomsguide.com/reviews/kwikset-halo-wi-fi-smart-lock
- Level Lock+ Review: A Discreet Smart Lock: https://www.tomsguide.com/reviews/level-lock-plus
- Schlage Encode Plus review: Tap your iPhone or Apple Watch to unlock: https://www.tomsguide.com/reviews/schlage-encode-plus
- Yale Assure Lock 2 review | Tom's Guide: https://www.tomsguide.com/reviews/yale-assure-lock-2
- The best smart home devices: https://www.tomsguide.com/us/best-smart-home-devices%2Creview-2008.html
- How Do I Set Up the Schlage BE489 Encode WiFi Lock?: https://www.trunetto.com/troubleshooting/smart-locks/schlage/schlage-be489-encode-wifi
- [1641] A $25 Smart Lock?!? Defiant Keypad Deadbolt: https://www.youtube.com/watch?v=oGgAlM9928A
- DEFIANT Electronic Keypad Deadbolt Lock - REVIEW: https://www.youtube.com/watch?v=wiJT89PAur0
- Kwikset Halo Select: Full Hands-on Review & Installation: https://www.youtube.com/watch?v=yn_Nc6x_3VA
- Kwikset HALO Touchscreen Wi-Fi Smart Lock -- INSTALL, DEMO & REVIEW: https://www.youtube.com/watch?v=ZIRrNvLfTQo
- I've tested dozens of smart locks, but I keep this one for its handy keycard feature: https://www.zdnet.com/home-and-office/smart-home/ive-tested-dozens-of-smart-locks-but-i-keep-this-one-for-its-handy-keycard-feature/
Other Sources
- Aqara Smart Lock U100 Kit: http://dbgtechstore.in/products/aqara-smart-lock-u100-kit-includes-aqara-e1-hub-main-door-lock
- Kwikset - App Store: https://apps.apple.com/us/app/kwikset/id1465996742
- PGD728-SMT000-EB-180714 说明书: https://fcc.report/FCC-ID/N9KSMARTPGD728F/3967529.pdf
- What hubs work with the Aqara Smart Lock U100?: https://m.media-amazon.com/images/I/71pKWKUv+VL.pdf
- August Wi-Fi Smart Lock (4th Generation) User Manual: https://manuals.plus/asin/B082VXK9CK.pdf
- Kwikset Clear Pack Price Book Effective February 2026: https://minotbuilderssupply.com/wp-content/uploads/2026/02/Kwikset-Clear-Pack-Price-Book-Effective-February-2026.pdf
- How to Manage Users for ULTRALOQ U-Bolt Series: https://support.ultraloq.com/hc/en-us/articles/54725118235545-How-to-Manage-Users-for-ULTRALOQ-U-Bolt-Series
- August Home AUG-SL05-M01-G01 August Wi-Fi, (4th Generation) Smart Lock, Matte Black: https://www.amazon.com/August-Wi-Fi-Smart-Generation-Matte/dp/B082VXRND2
- Schlage Encode Smart Wi-Fi Deadbolt with Camelot Trim in Aged Bronze - Amazon.com: https://www.amazon.com/Schlage-Deadbolt-BE489WB-CAM-716/dp/B07HXNBWVV
- Schlage Encode Smart Wi-Fi Deadbolt with Century Trim in Satin Nickel - Amazon.com: https://www.amazon.com/Schlage-Deadbolt-BE489WB-CEN-619/dp/B07HXFKMYR
- Schlage Encode Smart Wi-Fi Deadbolt with Century Trim in Matte Black: https://www.amazon.com/Schlage-Deadbolt-BE489WB-CEN-622/dp/B07HXMLCBT
- ULTRALOQ U-Bolt Pro Smart Lock with WiFi Bridge: https://www.amazon.com/ULTRALOQ-Bluetooth-Fingerprint-Electronic-Deadbolt/dp/B082TNN1QB
- ULTRALOQ Smart Lock U-Bolt Pro with WiFi Hub: https://www.amazon.com/ULTRALOQ-Fingerprint-Keyless-Biometric-Deadbolt/dp/B086QJVHVD
- ULTRALOQ Smart Lock U-Bolt Pro with WiFi Hub: https://www.amazon.com/ULTRALOQ-Fingerprint-Smartphone-Deadbolt-Certified/dp/B0BT937TRF
- ULTRALOQ U-Bolt Pro WiFi Smart Lock with Door Sensor: https://www.amazon.com/ULTRALOQ-Keyless-Fingerprint-Control-Deadbolt/dp/B0C61DKKL8
- ULTRALOQ U-Bolt Pro WiFi Smart Door Lock with Black Handle Set: https://www.amazon.com/ULTRALOQ-U-Bolt-Smart-Black-Handle/dp/B0CTSZ7M42
- August - Smart Lock Wi-Fi Replacement Deadbolt with App Access: https://www.bestbuy.com/product/august-smart-lock-wi-fi-replacement-deadbolt-with-app-access-matte-black/J3R8QSLG75
- The 4 Best Smart Locks of 2023: https://www.classicalnumismaticgallery.com/blog/1xhv-the-4-best-smart-locks-of-2023-reviews-by-wirecutter/
- Schlage Encode WiFi Enabled Electronic Keypad Deadbolt with ...: https://www.fergusonhome.com/schlage-be489wb-cen/s1562942
- Defiant Radius Matte Black Single Cylinder Electronic Keypad Deadbolt Lock: https://www.homedepot.com/p/Defiant-Radius-Matte-Black-Single-Cylinder-Electronic-Keypad-Deadbolt-Lock-GZAX9D01/334470989
- Defiant Square Fingerprint Matte Black Electronic Single Cylinder Deadbolt Wi-Fi Enabled Powered by Hubspace: https://www.homedepot.com/p/Defiant-Square-Fingerprint-Matte-Black-Electronic-Single-Cylinder-Deadbolt-Wi-Fi-Enabled-Powered-by-Hubspace-HSGCDX9D01APPB/325366305
- Square Matte Black Fingerprint Electronic Keypad Deadbolt: https://www.homedepot.com/p/Defiant-Square-Matte-Black-Fingerprint-Electronic-Keypad-Deadbolt-32GD2X9D01AMP/336797400
- Defiant Single Cylinder Castle Electronic Keypad Deadbolt Satin Nickel: https://www.homedepot.com/p/questions/Defiant-Single-Cylinder-Castle-Electronic-Keypad-Deadbolt-Satin-Nickel-KS01-SN/320580303/5
- How to Share Temporary Access with Guests on Aqara U100 - ManualsLib: https://www.manualslib.com/answers/4447775/how-to-share-temporary-access-with-guests-on-aqara-u100.html
- ULTRALOQ U-Bolt Pro WiFi Smart Lock with Door Sensor: https://www.ubuy.co.in/product/B0H2Z2NLXH-ultraloq-u-bolt-pro-wifi-smart-lock-with-door-sensor-app-remote-control
- Lockly Model 7S Deadbolt Edition, Matte Black PGD7SMB: https://www.zoro.com/lockly-model-7s-deadbolt-edition-matte-black-pgd7smb/i/G211591738/ Explore more home safety guidance in the category directory.
Verify This Research
Review the study details behind this page or download the public machine-readable verification record.
- Study date
- September 27, 2026
- Platforms analyzed
- 7
- Source records
- 398
- Candidates reviewed
- 15
- Qualified finalists
- 10
Research trail and source mix
Configured platforms
openai, anthropic, deepseek, grok, perplexity, kimi, google
Source mix
168 independent · 202 company-owned · 28 unclear
Evidence support
284 direct · 96 partial
Important limitation
Exactly 7 platforms were included in this run: openai, anthropic, deepseek, grok, perplexity, kimi, google. The configured source value 7 is provenance only and must never be described as the number of platforms studied.
Source snapshot SHA-256 2f90828b5b70d185f3f69e82df548de2e3b82e397aca2e5b826f06abd975463e
Archived editions
Browse earlier published research snapshots for this article. The latest edition remains at the current URL.
