Any HomeKit compatible door lock, and an Aple Watch. The app requires a minimum of WatchOS 7 to work.

- Download and install the app to your Apple Watch. - Launch the app on your watch, and allow the Homekit access to your door locks, when prompted. - Tap and hold on the lock, and the door will lock or unlock. - You can also rotate the digital crown to lock and unlock. - Hold time and crown sensitivity are tuned to prevent accidental locking and unlocking. - If you have more than one, swipe the screen left/right to access all your locks.