10.5 ounces

WHY APPLE WATCH ULTRA – Rugged and capable, built to meet the demands of endurance athletes, outdoor adventurers, and water sports enthusiasts – with a specialized band for each. Up to 36 hours of battery life, plus all the Apple Watch features that help you stay healthy, safe, and connected.
EXTREMELY RUGGED, INCREDIBLY CAPABLE – 49mm corrosion-resistant titanium case. Larger Digital Crown and more accessible buttons. 100m water resistance. Customizable Action button for instant physical control over a variety of functions.
BIGGEST, BRIGHTEST DISPLAY YET- A bright Always-On Retina display that’s easy to see, even in direct sunlight. More room for adding complications to customize your watch face.