Compare Aqara UWB Smart Lock U400 vs Tapo Smart Door Lock DL110

Access logs were repeatedly praised for showing what happened, who used the lock, and when, often in a clear or categorized format.

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.

The app was consistently praised as intuitive, useful, and easy to follow for setup, control, users, logs, and settings.

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

Auto-lock was widely praised as convenient and configurable, but the PCWorld review found it could repeatedly cycle when calibration was off.

Failed-attempt lockout had limited but positive evidence, with one reviewer describing automatic lockdown plus notification after suspicious attempts.

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

Battery life was strongly praised for its large rechargeable pack and long expected runtime, with one review also noting 100% after weeks of use.

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.

Bluetooth was valued as a useful fallback when Wi-Fi drops or is unavailable, preserving local app control.

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

Build quality was consistently praised as substantial, sturdy, and durable, with reviewers calling it built to last or quality-feeling.

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.

The built-in doorbell was generally praised as useful, integrated, loud enough, and a reason the lock feels more like a two-in-one device.

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.

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

Door fit drew mixed evidence: the lock uses common deadbolt hardware, yet reviewers warned that door restrictions and strike/frame tolerances can matter.

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.

Existing strike reuse was a weakness in one hands-on review because the tester had to adjust the strike plate before the lock behaved correctly.

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

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

Fingerprint recognition was one of the clearest strengths, repeatedly described as fast, accurate, easy to enroll, and nearly instant.

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

The matte finish earned praise for resisting fingerprints and keeping the exterior cleaner after repeated touch use.

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

Guest access was a strong feature for families, cleaners, technicians, and visitors, although the PCWorld review noted limits for commercial rental automation.

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

Industrial design was praised for its sleek matte look, hidden backup entry, and ability to blend into a door rather than looking overly techy.

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.

Most reviewers found setup quick and DIY-friendly, often around 5-20 minutes, but one reviewer found the DL110 unusually finicky when strike alignment was imperfect.

Jam detection had limited but positive evidence, with one reviewer confirming the app produced a notification for a door-jam event.

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

Backup key access was treated as a reassuring fallback, especially when paired with the hidden keyhole and other emergency power options.

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 keypad was generally well-liked for fast response, code entry convenience, visibility, and anti-shoulder-surfing features.

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

A locksmith reviewer praised the SC1/Schlage-style keyway because it could be pinned to an existing house key without trouble.

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

Unlocking speed was a major strength, with reviewers describing near-instant fingerprint or app response.

The motor was praised as quieter and more refined than many smart locks, reducing the clunky feel some reviewers dislike.

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

Overall reliability was strong across testing, though one reviewer’s alignment-related auto-lock issue kept it short of flawless.

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

Notifications were praised as quick, instant, configurable, and useful for lock activity, doorbell presses, and suspicious activity.

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.

Physical security drew strong praise from reviewers citing Grade 2/BHMA positioning and stronger resistance than many lower-grade locks.

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

Remote access was a practical highlight, letting reviewers unlock or lock from another location or from a vehicle when someone needed entry.

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

Security feature praise centered on scramble PINs and biometric app verification; reviewers did not evaluate encryption specifically.

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

Smart-home integration was mostly positive for Alexa, Google, and SmartThings setup, though one reviewer wanted deeper automation.

Tamper-related alerts were treated as useful extra protection, with reviewers praising suspicious-activity alerts and the tamper alarm concept.

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

Touch/wake behavior was the one weak touchscreen-related point: one reviewer wished the lock lit up automatically instead of needing an initial touch.

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

User management was praised for configurable people, fingerprints, PINs, schedules, and control over who can enter.

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

Value was one of the strongest consensus points: reviewers repeatedly called the DL110 unusually feature-rich for its price.

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

Voice control was shown working well and was viewed positively, especially with required PIN/security steps for unlocking.

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.

Weather resistance was viewed positively, with reviewers citing stronger element protection and confidence around rain, snow, and outdoor placement.

Wi-Fi received positive but narrower evidence, with reviewers praising reliable connectivity and useful power-saving scheduling.