Unlock Your Front Door
Forgot your iPhone on the way out? If you’re using a HomeKit or Home Key compatible lock, you can unlock your front door from your Apple Watch without fumbling for your keys or even having them with you.
For a HomeKit lock, just ask Siri to “unlock your front door,” or open the Home app and do it manually. Your door will unlock, and as long as you have Wrist Detection enabled, you don’t even need to authenticate as your Apple Watch already knows who you are.
This works for other secure devices like garage doors, and as a bonus, it even works when using “Hey Siri” with a set of AirPods, as long as they’re connected to your Apple Watch and not your iPhone. This makes a good case for keeping your AirPods linked to your Apple Watch even when you’re out for a walk with your iPhone since you’ll be able to ask Siri to unlock your door without the need to take your iPhone out of your pocket and identify yourself with Face ID or Touch ID.