Apple Watch Ultra: How to Customize the Action Button - MacRumors
Skip to Content

Apple Watch Ultra: How to Customize the Action Button

by

Apple Watch Ultra features a customizable Action button on the left side of the case that is capable of performing a variety of functions. This article explains what it can do, and how you can configure it.

Apple Watch Ultra Orange Alpine Loop Action button 220907 big
Apart from activating the Siren, the Action Button on Apple Watch Ultra can be customized to perform a number of functions, offering quick access to them without you having to tap through various screens.

When you first set up your Apple Watch Ultra, you'll be invited to assign one of the following functions to it:

  • Workout
  • Stopwatch
  • Waypoint
  • Backtrack
  • Dive
  • Flashlight
  • Shortcut
  • None

You can customize your selection further, depending on the app or function chosen. If you chose the Workout app, for example, pressing the Action button once will open the Workout app, but you can also assign the "First Press" function within the app to start a specific workout.

action button mark segment
But that's not all. When you've started the activity, you can then press again to perform a secondary function, such as marking segments or laps in a track workout, or switching from cycling to running in a triathlon. Again though, what function this is will depend on the current activity.

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.

  1. On Apple Watch Ultra, launch the Settings app.
  2. Scroll down and tap Action Button.
  3. Tap the menu under "Action" and select one of the following options: Workout, Stopwatch, Waypoint, Backtrack, Dive, Flashlight, and Shortcut.
    settings

  4. Tap the arrow in the left-hand corner to go back to Action Button settings.
  5. 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.
  6. Tap the arrow to go back.
  7. 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.

Configuring the Action Button via iPhone

You can also use the iOS Watch app to configure what the Action button on the Apple Watch Ultra does.

  1. Launch the Watch app on your iPhone.
  2. Tap the My Watch tab if it's not already selected.
  3. Tap Action Button.
  4. Under "Action," tap the currently selected action to change it.
  5. Select from one of the following options: Workout, Stopwatch, Waypoint, Backtrack, Dive, Flashlight, and Shortcut.
  6. Tap Action Button to go back to the previous menu.
  7. 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.
  8. Tap the arrow to go back.
  9. 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.

settings

Note that tips on the screen under "Gestures" explaining how the Action button works with the settings that you've assigned to it.

Note that if you want to pause the current action, you can press and hold both the Action and Side buttons at the same time. Try to avoid pressing the Side button or the Digital Crown accidentally when you press the Action button. Your Apple Watch will do whatever is assigned to the Action button if you happen to press another button at the same time, unless a button combination is configured.

Related Roundup: Apple Watch Ultra 3
Related Forum: Apple Watch

Top Rated Comments

Stiksi Avatar
46 months ago
This is certainly not ”extremely customizable” like it has been described over and over. ”Somewhat customizable” is more like it. If Apple would just get over itself and actually give us a Shortcuts system that is extensive and deeply integrated, that would make it a whole different thing but this is just typical Apple: it does exactly what was shown in the keynote and maybe a couple other things but that’s it. I mean it’s nice to have but if you’re going to add a whole extra button, maybe make it count a bit more.
Score: 5 Votes (Like | Disagree)
disquieted Avatar
46 months ago
I own one and love it. It was rugged enough to handle my lifestyle which includes walking the dog around the block twice a day and making my morning nitro cold brew in the kitchen...after 3 1/2 days, it still is holding up very well.
Score: 3 Votes (Like | Disagree)
beanbaguk Avatar
46 months ago
I'm sorry. I can't get over this. As I've said before; Only Apple could successfully reinvent a button as a major feature! 🤣
Score: 3 Votes (Like | Disagree)
ProfessionalFan Avatar
46 months ago

I'm sorry. I can't get over this. As I've said before; Only Apple could successfully reinvent a button as a major feature! 🤣
That's a take.

If they didn't add this new (useful) action button, people would be saying it is the same watch. Some would find something to complain about no matter what.
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.4 Adds Two New Features to CarPlay

Tuesday March 24, 2026 1:55 pm PDT by
iOS 26.4 was released today, and it includes a couple of new features for CarPlay: an Ambient Music widget and support for voice-based chatbot apps. To update your iPhone 11 or newer to iOS 26.4, open the Settings app and tap on General → Software Update. CarPlay will automatically offer the new features so long as the iPhone connected to your vehicle is running iOS 26.4 or later....
Apple Business hero

Apple Unveils 'Apple Business' All-in-One Platform

Tuesday March 24, 2026 8:53 am PDT by
Apple today announced Apple Business, a new all-in-one platform that unifies device management, productivity tools, and customer outreach features. The service is designed to be a consolidated replacement for several of Apple's existing business-focused offerings, including Apple Business Essentials, Apple Business Manager, and Apple Business Connect. It provides organizations with a single...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 3, AirPods Pro 2 and AirPods 4

Tuesday March 24, 2026 12:31 pm PDT by
Apple today released new firmware for the AirPods Pro 2, AirPods Pro 3, and the AirPods 4. The firmware has a version number of 8B39, up from 8B34 on the AirPods Pro 3, 8B28 on the AirPods Pro 2, and 8B21 on the AirPods 4. There is no word on what's included in the firmware, but Apple has a support document with limited notes. Most updates are limited to bug fixes and performance...