If your door has a mortise lock, with the latch and bolt in an integrated unit, or a door handle and latch that are a single unit, none of the smart locks we recommend here will work. Instead you ...

Aqara’s latest smart entry lock replaces your doorknob, not your deadbolt, but buyers should wait for bug fixes.

If the lock is part of the door knob, the latch is usually a small knob in the center ... When the deadbolt is engaged the outside handle is locked and will not open the bolt lock. Classroom security ...

The Ultion Nuki Plus is another solution that comes as a collaboration between Nuki and Ultion, offering a complete lock replacement. This includes a new door handle, smart lock, barrel and keys.