Carbon Neutral: Apple Watch Ultra 2 paired with Alpine or Trail Loop is carbon neutral. Rugged Design: 49mm titanium case, large Digital Crown, customizable Action button, water-resistant up to 100m. Bright Display: Always-On Retina display, visible in direct sunlight, with more complications. Built-in Cellular: Call, text, stream, and navigate without iPhone. For Athletes: Advanced workout metrics, dual-frequency GPS, and lightweight Trail Loop. For Adventurers: Compass app with GPS Backtrack and rugged Alpine Loop. For Water Sports: Dive up to 40m, Depth app, and secure Ocean Band. Health & Safety: Heart health, Blood Oxygen app, Fall/Crash Detection, and a loud siren.