Compare Desloc D110 Plus Smart Lock vs Aqara UWB Smart Lock U400

Access logs were useful for seeing lock history, entry timing, and who entered.

The app was generally described as simple, easy, and user-friendly, with good access controls and setup flow.

The Aqara app was seen as useful and feature-rich, but reviewers also flagged setup complexity, a Matter-code issue, and a learning curve for customization.

Auto-lock was praised for peace of mind and convenience, but multiple reviewers flagged limits around timing and open-door behavior.

Auto-lock was broadly praised and often described as reliable or well implemented, though one reviewer found Aqara app close-detection sometimes delayed.

Failed-attempt lockout drew criticism from one reviewer because the settings and behavior were not clearly adjustable or explained.

Battery impressions were good overall but not exceptional, ranging from solid and efficient to fine but not incredible.

Battery feedback was mostly positive for USB-C charging, removable/rechargeable design, and long runtime, tempered by concerns about spare or replacement batteries.

Bluetooth-only use was judged weak for this lock because reviewers saw the U400's main value in Thread/UWB rather than basic Bluetooth operation.

Most reviewers described the lock as solid, sturdy, or durable for the price, while one found the construction quality questionable.

Build quality was viewed positively, with reviewers describing a step up from earlier Aqara locks and solid, well-made hardware.

Camera and doorbell integration was described as practical when paired with Aqara or Apple Home video devices, letting users see visitors and unlock from one screen.

Door-sense was a clear weakness because reviewers noted there is no door sensor and the bolt can extend while the door is open.

Door-sense evidence was limited but positive, centered on the built-in gyroscope knowing when the door closes so it can lock without an added sensor.

One reviewer cautioned that very thick doors may require modification even though standard doors worked well.

Door fit flexibility was helped by adapters/cross-bore support, with reviewers calling the physical fit detail useful for nonstandard openings.

One reviewer valued that the lock could mount without the kind of door drilling required by the previous lock, making the install feel friendlier to existing doors.

The 90-day follow-up praised Desloc for frequent firmware updates and meaningful improvements.

Feature-update evidence was limited but positive, with one reviewer saying Aqara is good about firmware updates.

Fingerprint access was one of the most praised areas, with many fast and accurate reports, though PCWorld found it hit-and-miss.

Fingerprint access was consistently praised as quick, accurate, consistent, or convenient, especially as a backup when UWB is unavailable.

The exterior finish earned a positive note for resisting fingerprints better than expected.

Guest access was praised for one-pass, scheduled, IC-card, and Airbnb-style temporary access options.

Guest access was praised through Home app PIN management and temporary/neighbor-style access options.

Reviewers consistently liked that no separate hub or gateway is required.

Hub requirements were mixed: reviewers liked avoiding an Aqara hub in Apple Home, but still emphasized the need for a Thread border router for full functionality.

Industrial design was praised as sleek, ergonomic, modern, and premium-looking rather than overly bulky.

Industrial design was the most mixed area: reviewers liked the sleeker, more mature, minimal look, but others called it bulky, plain, or plastic-looking.

Installation was usually described as quick and simple, but one reviewer had jammed bolts and another noted a short cord and over-tightening sensitivity.

Installation was usually described as straightforward and fast, with several reviewers finishing quickly, though a few noted tight wiring, small screw holes, or a latch-area snag.

One reviewer specifically reported no jamming during several days of testing.

Backup mechanical keys were valued as a practical fallback, especially for power loss.

Reviewers liked retaining a physical-key fallback, framing it as a useful mechanical backup rather than a compromised smart-only design.

Keypad impressions were mixed: PCMag found it responsive and well-lit, PCWorld found it slow to wake, and another liked the soft glow.

The keypad was generally usable and responsive, but reviewers also found that it could take extra taps or touches to wake in some cases.

The keyway/cylinder was viewed positively because the reviewer liked that it could be rekeyed rather than forcing a full lock replacement.

Speed was mostly positive for voice and remote response, though one reviewer found it fast but slower than pricier locks.

Lock/unlock speed was one of the strongest themes, especially with UWB; reviewers described fast reactions, instant Home app response, and few delay caveats.

Motor feel was mixed: one reviewer found it smooth and quiet, while another warned that over-tightening could make the bolt struggle.

Reliability was a strength across several reviews, with reports of perfect testing, stable 90-day use, and natural daily fit.

Locking reliability was strongly praised, with reviewers repeatedly reporting flawless, rock-solid, or consistently smooth hands-free unlocking.

Notifications were useful for awareness and security, but one reviewer wanted push notifications instead of emergency emails that went to spam.

Notifications earned praise for adding Apple Watch/iPhone confirmation and a quick relock option after UWB unlocks.

Reviewers repeatedly liked the small on-lock display, describing it as helpful for setup, status, battery, alerts, and local control, though one saw it as basic rather than groundbreaking.

Palm vein recognition was not included, and one reviewer missed that faster, convenient method from another lock.

Physical resistance evidence was moderate: reviewers cited BHMA certification and durability, but one emphasized it is the lowest acceptable commercial level.

Physical attack resistance drew a caveat: the reviewer appreciated certification but clearly wished the U400 had a stronger Grade 2 rating instead of Grade 3.

Remote access was a major convenience, especially for managing the lock away from home or unlocking for guests.

Remote access was useful when configured, with one reviewer praising fast remote unlock and another noting Aqara-app remote control needs an Aqara hub.

Security features such as anti-peeping and anti-hijacking were viewed as useful or reassuring, with PCMag also noting enhanced security options.

Security features were praised around UWB precision, encryption-related safeguards, and prevention of unintended inside unlocks or relay-style weaknesses.

Smart-home integration was the main limitation: Alexa and Google were supported, but reviewers missed HomeKit, Matter, IFTTT, or broader security-system support.

Smart-home integration was a major strength, with reviewers praising Apple Home, Matter over Thread, responsiveness, major ecosystem support, and future-looking compatibility.

The touch surface/keypad was praised as responsive, well lit, and visually integrated into the front panel.

Touchscreen evidence was mixed, with one reviewer naming wake-up attempts as the main complaint.

User access management was a strong point, with praise for simple schedules, temporary codes, and control over different users.

User access management was positively reviewed for adequate household limits, more granular Aqara controls, and approachable local fingerprint setup.

Value was the broadest strength because most reviewers saw a lot of features for the price, although PCWorld rejected the value claim after testing.

Value sentiment was favorable but conditional: reviewers called it worth the upgrade or routine-changing, while also noting the price can feel high.

Voice control worked well in the reviews that tested it, especially with Alexa and Google Assistant.

Voice control received limited but positive evidence, with a reviewer saying they wished they had the supported voice-control lock routine at home.

Weather resistance was generally viewed positively, including rain/outdoor use, though one reviewer called the IP54 rating tame.

Weather resistance came across well: reviewers said it could face the elements, and one real-world test cited rain, snow, ice, and no missed performance.

Built-in Wi-Fi was praised for direct connectivity and remote use, and one follow-up noted updates that improved Wi-Fi stability and power use.