There’s no need to panic if you ever forget the passcode on your new Apple Watch. It only takes a couple of minutes to reset it.

Apple requires you to create a PIN during the initial Apple Watch setup process. You are then asked to enter the code to unlock the watch each time you take it off your wrist. But what happens if you ever forget the code? There’s no need to worry, it can be reset in a few short steps. Here’s what you need to know:

Reset it from an iPhone

To reset the watch from a paired iPhone, click the Apple Watch app on the phone’s home screen and select General. Then, scroll down to the bottom of the page, tap Reset and choose Erase All Content and Settings.
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https://www.cnet.com/how-to/reset-forgotten-passcode-on-the-apple-watch/