Made from aerospace-grade titanium, Apple Watch Ultra provides the perfect balance of weight, durability, and corrosion resistance. The case rises up to surround all edges of the flat sapphire front crystal, protecting the Retina display, which is up to 2000 nits — 2x brighter than any Apple Watch display yet. The new Action button in high-contrast international orange is easily customized for instant access to a variety of features, including Workouts, Compass Waypoints, Backtrack, and more