Best for Existing hardware reuse
Aqara UWB Smart Lock U400
4.2 feature score
Highest scored product for this feature based on supporting review evidence.
Best Aqara Smart Home for Existing hardware reuse
Existing hardware reuse Decision Dashboard
Safest pick
Aqara Smart Lock U100
4.0 feature score
Balances feature score, supporting reviews, and overall product strength.
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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.
Pros: Locking reliability, Lock/unlock speed
Cons: Bluetooth, Physical attack resistance
One reviewer reused an existing strike plate successfully, suggesting some prior hardware can work when the bolt alignment is already right.
Pros: Lock/unlock speed, Fingerprint
Cons: Keyway quality, Wi-Fi