Apple is working on a fix to let you unlock your iPhone 13 with your Apple Watch
If you're wondering why you can't unlock your iPhone 13 with the Apple Watch, you're not alone. There's a bug that affects the new iPhones from using the feature. Apple released this functionality to allow users wearing face masks or sunglasses to unlock their smartphones without Face ID or passcode. But some users trying out the feature on the iPhone 13 are getting error messages like "Unable to Communicate with Apple Watch," or they can't set it up at all.