The Apple Watch Ultra 2 is the most rugged and capable Apple Watch ever made, designed for endurance athletes, outdoor adventurers, and water sports enthusiasts. It features a 49mm corrosion-resistant black titanium case rated 100 meters water resistant and IP6X dust resistant, with support for recreational scuba and freediving to 40 meters. The watch is powered by Apple's S9 SiP chip and features the brightest-ever Always-On Retina LTPO OLED display, easily readable even in direct sunlight.

This model (MRF63LL/A) pairs the black titanium case with the Blue/Black Trail Loop band in Medium/Large — a thin, lightweight, and flexible band designed for all workout types. GPS and Cellular (LTE) are built in, allowing you to call, text, stream music, and use Maps completely independently of your iPhone, including international roaming. Battery life reaches up to 36 hours in standard use and 72 hours in Low Power Mode.

For athletes, the watch delivers precision dual-frequency GPS (L1 + L5) for highly accurate distance, pace, and route tracking, along with Heart Rate Zones, custom workouts, and advanced cycling metrics in the Workout app. The customizable Action button provides instant access to your most-used functions, and the Double Tap gesture lets you interact with the watch without touching the display. Precision Finding uses the second-generation Ultra Wideband chip to guide you directly to your iPhone.

Outdoor adventurers benefit from the Compass app with Waypoints, incline and elevation data, and Backtrack — a GPS feature that maps your route so you can retrace your steps. Water sports enthusiasts can use the built-in Depth app for real-time dive data and the Oceanic+ app to turn the watch into a full dive computer. In emergencies, holding the Action button activates a loud siren audible up to 600 feet away, and Crash Detection and Fall Detection can automatically contact emergency services.

Health features include continuous heart rate monitoring, the Blood Oxygen app, and an ECG app capable of generating a single-lead electrocardiogram. The watch is carbon neutral when paired with the Trail Loop. It requires iPhone XS or later running iOS 17 or later. AppleCare+ is available at the time of purchase (not sold separately). Costco offers a 90-day return policy on this item.