RUGGED BY DESIGN Built to endure, this premium design is dive-rated and features leakproof buttons, a metal sensor guard cover and bright 1.3” AMOLED display with options for a scratch-resistant lens and titanium bezel. It's tested to U.S. military standards for thermal, shock and water resistance. BUILT-IN SPEAKER AND MICROPHONE Make and take phone calls from your watch when it's paired to your smartphone. Plus, control watch functions with off-grid voice commands — or use your smartphone's voice assistant to respond to text messages and more. BUILT-IN LED FLASHLIGHT A true integrated flashlight with variable light intensities and a red safety light gives you greater awareness in the dark, providing convenient illumination when you need it. Strobe mode can even match your running cadence. ADVANCED STRENGTH TRAINING Elevate your body's performance with targeted strength training plans and sport-specific workouts for athletes of all types. KNOWLEDGE IS POWER Begin each day with a customizable morning report offering a summary of health and wellness information. Use the training readiness feature, which looks at a variety of health metrics, to maximize your training efficiency and recovery — to help prevent burnout. ENHANCED MAP NAVIGATION A dynamic round-trip routing feature lets you enter how far you want to go — and get suggested routes that will guide you back on time. You can also view terrain contours on TopoActive maps and access preloaded maps for golf courses and ski resorts around the world. ENDURANCE SCORE Using your VO2 max, training loads and other factors, this feature helps gauge your ability to sustain prolonged effort. VISUAL RACE PREDICTOR Get an estimate of what your pace could be for a 5K, 10K, half-marathon and marathon. PACEPRO TECHNOLOGY Plan race-day strategy with GPS-based pace guidance for a selected course or distance. CLIMBPRO FEATURE See real-time information on your current and upcoming climbs on downloaded courses.