Aqara UWB Smart Lock U400
Highest scored product for this feature based on supporting review evidence.
Highest scored product for this feature based on supporting review evidence.
Balances feature score, supporting reviews, and overall product strength.
Has the broadest review evidence for this feature.
Strongest overall product among items with scored evidence for this feature.
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.
Pros: Locking reliability, Lock/unlock speed
Cons: Bluetooth, Physical attack resistance
Door-sense is a clear strength, with reviewers praising the hidden sensor and the ability to know whether the door is actually closed.
Pros: Lock/unlock speed, Wi-Fi
Cons: Feature additions via updates, Warranty and support
Door-sense feedback was positive where tested; reviewers liked the added sensor and remote reporting of open/closed and lock/unlock state.
Pros: Locking reliability, Build quality and durability
Cons: Two-factor authentication availability, Backset compatibility
Door-sense was useful and often praised, though one reviewer estimated it at about 80% accuracy and used an extra contact sensor for certainty.
Pros: Lock/unlock speed, Fingerprint
Cons: Keyway quality, Wi-Fi
Door-sense worked in the reviewer’s test, with the app state updating once the door closed.
Pros: Lock/unlock speed, Locking motor
Cons: Smart-home integration (Alexa, Google
DoorSense and door-open detection were mostly viewed as reassuring and helpful, though setup and flush-mount installation caused friction for some reviewers.
Pros: Key override reliability, Remote access
Cons: Warranty and support, Bluetooth
The door sensor was useful for door-open awareness and auto-lock behavior, but reviewers disliked its looks and noted it was not exposed to Apple Home.
Pros: Weather resistance, User access management
Cons: Locking motor, Remote access
Door-sense received qualified praise because it can infer door state without a separate sensor, though with some edge-case caveats.
Pros: Lock/unlock speed, Locking reliability
Cons: Door compatibility (deadbolt fit), Hub requirement
DoorSense was useful for knowing door status and enabling safer auto-lock behavior, but installation, appearance, and occasional calibration behavior were recurring caveats.
Pros: Lock/unlock speed, Guest Codes and Access
Cons: Backset compatibility, Warranty and support
DoorSense was praised when it worked and was considered worth installing, but one reviewer reported repeated calibration failures and incorrect open/closed status.
Pros: Locking motor, Physical attack resistance
Cons: Fingerprint, Battery
Door-sense split reviewers: one was impressed by the built-in sensor, while another liked the idea but found it not reliable enough for exact door position.
Pros: Access logs, Value and Price
Cons: Warranty and support, Wi-Fi
Door-sense evidence was mixed: departure detection was useful, but one reviewer criticized the lock for not knowing whether the door was open.
Pros: Lock/unlock speed, Wi-Fi
Cons: Jam detection, Door compatibility (deadbolt fit)
Door-sense was split: one reviewer found the sensor useful for auto-lock, while another said the magnet still reported the door state unreliably.
Pros: App, Battery
Cons: Geofencing, Jam detection
Door-sense was the most consistent hardware complaint: it worked accurately for some reviewers, but many disliked the exposed wired sensor or complicated sensor alternatives.
Pros: Touchscreen, Hub requirement
Cons: Camera and doorbell performance, Door-sense
Door-sense was a clear weakness because reviewers noted there is no door sensor and the bolt can extend while the door is open.
Pros: Feature additions via updates, Locking reliability
Cons: Door-sense, Auto-relock after failed attempts
Door-sense was a repeated weakness because the lock does not know whether the door is actually shut, making auto-lock behavior less safe.
Pros: Lock/unlock speed, Locking reliability
Cons: Auto-relock after failed attempts, Door compatibility (deadbolt fit)
Reviewers wanted true door-sense behavior; the repeated concern was that the lock cannot tell whether the door is actually closed.
Pros: Industrial design, Build quality and durability
Cons: Pick/drill resistance (if rated), Keyway quality
Door-sense was weakly supported because a reviewer specifically wanted a sensor to know whether the door was open or closed.
Pros: Lock/unlock speed, Security features (encryption)
Cons: Door-sense, Keyway quality
Door-sense capability was criticized as absent, with a reviewer saying an open/closed door sensor would still be useful despite lock/unlock notifications.
Pros: Locking reliability, Lock/unlock speed
Cons: Weather resistance, Door-sense
Door-sense was a clear weakness where discussed: reviewers wanted an open-door sensor, and one reported the lock throwing the bolt while the door was open.
Pros: Weather resistance, Notifications
Cons: Door-sense, Bluetooth
The main door-sense evidence was negative: the lock can auto-lock without knowing whether the door is actually shut.
Pros: Bluetooth, Hub requirement
Cons: Door-sense, Fingerprint
Door-sense is a clear weakness in the evidence because one reviewer specifically wanted a sensor to know whether the door was open or closed.
Pros: Wi-Fi, Hub requirement
Cons: Door-sense, Geofencing
One review flags the lack of open/close detection as a weakness because auto-lock can engage without knowing whether the door is shut.
Pros: Lock/unlock speed, Keypad
Cons: Door-sense, Battery