What can you use your Apple Watch Ultra 4 action button for?

That little orange button can do a lot more than start your next workout.

By Roger Fingas Oct. 20, 2026 7:30 pm EST Apple Add Engadget on Google: Google Discover

If you're serious about running, hiking, weightlifting or other high-energy activities, the Apple Watch Ultra 4 is easy to recommend. At $800, it is a commitment — but that's surprisingly reasonable compared to other fitness and adventure watches, and the benefits over a regular Apple Watch aren't trivial. It's bigger, tougher and lasts up to 50 hours on a charge, whereas a Series 12 has to be topped up every day. Combined with its satellite features and GPS accuracy, it might legitimately save your life on a wilderness trek.