https://wccftech.com/you-can-finally-restore-your-apple-watch-using-your-iphone-running-ios-15-4/

Apple has seen fit to release iOS 15.4 and watchOS 8.5 yesterday. The new builds feature a boatload of new forward-facing features which include the ability to unlock your iPhone wearing a mask. Another major feature will let you restore your Apple Watch using your iPhone for the very first time. Scroll down to read more details on the subject.

If you are encountering problems with the software of your Apple Watch, you should always restore it. However, Apple did not allow you to restore your Apple Watch using the iPhone. With the release of iOS 15.4, you can easily do this using nothing but your iPhone. Since the Apple Watch does not have an access port to connect to a Mac, users had to take the wearable to Apple. Now, users can do it at home using their iPhones.