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 came from the lock detecting open/closed state, using a gyroscope or built-in close detection, and enabling lock-on-close behavior.
Pros: Lock/unlock speed, Smart-home integration (Alexa
Cons: Physical attack resistance, Hub requirement
The integrated door-open/closed sensing via the strike plate and smart deadbolt is repeatedly called out as a smart, cleaner alternative to external sensors and is tied to better auto-lock behavior...
Pros: Door-sense, Key override reliability
Cons: Geofencing
The door sensor is widely viewed as a meaningful upgrade, enabling open/closed status, open-door alerts, and smarter auto-lock behavior that helps prevent locking when the door is ajar. Reviewers consistently...
Pros: Door compatibility (deadbolt fit), Weather resistance
Cons: Two-factor authentication availability, Jam detection
The lock’s door-sense behavior is commonly tied to its auto-lock feature, helping it avoid locking when the door is open. Some hands-on reviewers mention it can misinterpret a nearly closed...
Pros: Physical attack resistance, Weather resistance
Cons: Value and Price
The optional door sensor is repeatedly recommended because it enables door-open/ajar awareness, supports smarter auto-lock behavior, and can trigger alerts when a door is left open. Some note it is...
Pros: Backset compatibility, Guest Codes and Access
Cons: Keyway quality, Pick/drill resistance (if rated)
A door-position sensor (magnet) can report door-ajar vs closed status and is used during calibration; installation can be adhesive or a more permanent drilled mount.
Pros: Backset compatibility, Lock/unlock speed
Cons: Voice control, Smart-home integration (Alexa
DoorSense door-status detection adds useful reassurance for remote locking and alerts for a door left ajar. Surface mounting is quick, but some reviewers note flush mounting can be tricky and...
Pros: Existing hardware reuse, Access logs
Cons: Build quality and durability, Fingerprint
Door status sensing is a standout feature thanks to the built-in gyroscope approach, though at least one review finds it less reliable than a dedicated door sensor in tricky installs.
Pros: Guest Codes and Access, User access management
Cons: Fingerprint, Warranty and support
DoorSense adds meaningful context (open, closed, ajar) and can prevent the bolt from extending when the door is open, but it may require drilling for a clean install and some...
Pros: Security features (encryption), Two-factor authentication availability
Cons: Warranty and support, Battery
The door sensor/magnet enables door-ajar awareness and smarter auto-lock behavior, but it’s also one of the most common weak points. Multiple reviewers note misreads or finicky behavior on certain installations,...
Pros: Existing hardware reuse, Battery
Cons: Finish durability, Auto-unlock
Door-sense relies on a gyroscope/accelerometer to infer open/closed/ajar status and trigger alerts or auto-lock. Accuracy is generally good after calibration, but a few reviewers report occasional false readings or less-than-perfect...
Pros: Locking motor, Backset compatibility
Cons: Wi-Fi, Keyway quality
DoorSense/door-position sensing is often cited as useful and accurate for door-ajar alerts when installed and calibrated, but at least one reviewer reports persistent calibration problems and unreliable open/closed status detection.
Pros: Existing hardware reuse, Hub requirement
Cons: Battery, Voice control
The included wired door-sense/contact sensor is accurate but often criticized for looking inelegant and adding extra wiring; some users wish it were built-in or removable.
Pros: Auto-unlock, Lock/unlock speed
Cons: None
A door sensor is mentioned as an optional add-on to report open/closed state, but it is not consistently tested across reviews.
Pros: Fingerprint, Finish durability
Cons: Notifications, Smart-home integration (Alexa
Door state awareness appears mixed: at least one reviewer warned the lock may not reliably know whether the door is open or closed, which matters if you rely heavily on...
Pros: Lock/unlock speed, Access logs
Cons: Door-sense, Jam detection
Evidence is mixed: one hands-on review explicitly says there is no integrated door-ajar sensor, while other writeups imply door-detected behavior; overall, door-sense is not consistently validated.
Pros: Hub requirement, Value and Price
Cons: Door-sense
Reviews note no full door-open/closed alerting, but some describe auto-lock behavior that only triggers when the door is closed and may beep when it is not fully shut.
Pros: Existing hardware reuse, Locking reliability
Cons: Key override reliability, Bluetooth
Door-sense is a notable omission: multiple reviewers explicitly wish the lock could detect when the door is closed to make auto-lock smarter and reduce mis-lock scenarios on ajar doors.
Pros: Smart-home integration (Alexa, Google
Cons: Fingerprint, Door-sense
Reviews indicate the E330 lacks true door-open and door-closed sensing, so auto-lock relies on timers instead of confirming the door position.
Pros: Locking reliability, Notifications
Cons: Door-sense, Geofencing
Several reviewers note the lock can auto-lock even if the door is not fully closed, and they specifically wish for a door sensor to prevent the bolt from extending when...
Pros: Weather resistance, Warranty and support
Cons: Auto-unlock, Door-sense
Reviews repeatedly note the lack of a true door sensor, meaning auto-lock can extend the bolt even if the door is open, which can be inconvenient and potentially hard on...
Pros: Hub requirement, Backset compatibility
Cons: Door-sense, Smart-home integration (Alexa
Multiple reviews explicitly call out the lack of a built-in door open/close sensor. Some users add a separate contact sensor to approximate door-sense behavior.
Pros: Build quality and durability, Finish durability
Cons: Geofencing, Door-sense
Multiple reviews emphasize the lack of a door-open sensor. The lock can report locked or unlocked status, but it cannot confirm whether the door is actually shut.
Pros: Hub requirement, Locking motor
Cons: Auto-unlock, Door-sense
Door-sense is frequently cited as absent, which means the lock may auto-lock even if the door is not fully closed unless users are attentive or add a separate sensor-based workflow.
Pros: Hub requirement, Physical attack resistance
Cons: Auto-unlock, Door-sense
Door-open/door-ajar sensing is reported as missing by at least one reviewer. Do not expect the lock to know whether the door itself is open or closed.
Pros: Hub requirement, Door compatibility (deadbolt fit)
Cons: Door-sense, Geofencing