The rugged yet sophisticated design features an always-on 1.3” display that’s 18% larger than previous fēnix models. It is tested to U.S. military standards for thermal, shock and water resistance. Fit the look to your lifestyle with your choice of stainless steel, titanium or DLC coated bezels. Each Sapphire edition adds a scratch-resistant sapphire lens and premium materials. Use preloaded activity profiles for trail running, swimming, running, biking, hiking, rowing, skiing, golfing and more. Optimise your body’s energy reserves, using heart rate variability, stress, sleep and other data to gauge when you’re ready to be active or when you may need to rest. Navigate your next trail with ABC sensors, including an altimeter for elevation data, barometer to monitor weather and three-axis electronic compass. For altitude acclimation or sleep monitoring, a Pulse Ox2 sensor uses light beams at your wrist to gauge how well your body is absorbing oxygen. Trek far and wide between recharges. Expedition mode, an ultralow-powered GPS reference, lasts for weeks.