If you have an Apple Watch and a Yale Smart product used with Wi-Fi and the Yale Home app, you can use your Apple Watch to lock and unlock. Open the Yale Home App on the device. Tap the green lock circle to unlock the door. Conversely, tap the red lock circle to lock it again.
Remote operations and Auto-Unlock do not work with Apple Watch.
PLEASE NOTE: Yale Home for Apple Watch is available to Lock Owners only. If you would like to operate your lock using your Apple Watch you must be an Owner of the lock.
Apple provides detailed instructions on how to set up your apps to appear on your Watch here.