For endurance athletes training from the roads to the trails and to the mountains, APEX Pro is the perfect training partner and our most versatile watch yet. Titanium bezel with high-grade fiber watch body Touch screen enabled Sapphire glass 100-meter waterproof rating Stunning battery life with 30 days of regular use, 40 hours in full GPS mode and 100 hours in UltraMax GPS mode. Ultra-light durability with a weight of 59g 24/7 blood oxygen monitoring with altitude acclimatization assistance Industry leading performance in extreme weather Enhanced Digital Knob for easy operation even with thick climbing gloves or under water Touchscreen enabled breadcrumb navigation Advanced training analysis and recovery recommendations Intelligent Stride model that learns your running form Wrist-based SpO2 sensor Wrist-based heart rate monitor UltraMax GPS setting for extended battery life Built-in barometer, altimeter, and compass GPS and GLONASS satellite connections (Galileo / Beidou via future firmware update) ANT+ for accessories, BLE for smartphone only Interval, triathlon, multisport training Fully customizable data screen Ultra comfortable 22mm silicone bands - compatible with APEX 46mm