Follow our easy instructions for how to set up your Galaxy Watch 4. From pairing to personalization, simple how-tos make each step up a snap.

The Apple Watch Ultra has a brand-new button, called the "Action" button, that you can program to do a number of specific actions. Here's how.

How to Map Functions to the Action Button Once your Apple Watch Ultra is set up, you can re-assign functions to the Action button via a new menu right on your wrist, like so.