How to use the Action Button on the Apple Watch Ultra

The Action button on the Apple Watch Ultra offers quick access to your favorite watchOS apps. Here’s how to set it up:

° Open the Settings app on your Apple Watch. You can also do this in the Apple Watch app on your iPhone.

° Tap the Action Button.

° Tap the menu under Action, then select what you want the button to launch.
° Tap the left-pointing arrow in the top-left corner to go back to Action Button settings.

° Tap the menu under App if it appears, then select an app to perform the action. Some actions, such as Flashlight, don’t show the App option.

° Tap the arrow to go back.

° Tap the menu under First Press if it appears, then select an action. Some features allow different actions to happen on the first and second press of the button.

Tips appear on the screen under Gestures explaining how the Action button works with the settings that you’ve assigned to it. For example, tips for an outdoor walk show you that pressing the Action button once starts a workout, and pressing the Action button and the side button at the same time pauses the workout.

You can configure actions related to these apps and features: Workout, Stopwatch, Waypoint, Backtrack, Dive, Flashlight, and Shortcut. 

Use the Action button to activate Siren

You can also press and hold the Action button to activate Siren, a safety feature on Apple Watch Ultra. If you don’t want the Action button to turn on Siren, go to Settings > Action Button, look under Siren, and turn off Hold to Turn On.