A WATCH FOR YOUR ALTITUDE AND YOUR ATTITUDE Titanium bezel and cover with high-grade fiber watch body Sapphire glass with diamond-like coating 150-meter water resistance rating Unparalleled battery life with 45 days of regular use, 60 hours in full GPS mode, and 150 hours in UltraMax GPS mode. Ultra-light durability with a weight of 76g 24/7 blood oxygen monitoring with altitude acclimatization assistance Industry-leading performance in extreme weather Enhanced Digital Dial for easy operation even with thick climbing gloves or underwater Touchscreen enabled breadcrumb navigation Precise analysis of training load and performance with evaluation of your exertion and recovery Intelligent Stride model that learns your running form Wrist-based pulse oximeter Wrist-based heart rate monitor Built-in barometer, altimeter, and compass GPS/GLONASS/BEIDOU satellite connections (Galileo via future firmware update) ANT+ for accessories, BLE for smartphone only Interval, structured, and strength training Fully customizable data screen Ultra-comfortable silicone bands