Built for endurance athletes training on the roads, trails or mountains, COROS APEX Pro is a versatile training partner with incredible battery life, advanced training features and route navigation. Designed for endurance athletes with route navigation and checkpoint features supported Offers 30 days of regular battery life and 40 hours in full GPS mode Built with a Grade 5 titanium alloy bezel and a sapphire glass touch screen Pulse Oximeter with 24/7 blood oxygen monitoring at high altitudes; 24/7 heart rate monitoring with sleep, step and calorie tracking Pulse oximeter is not a medical device and is not intended to diagnose or monitor any medical condition Includes a barometric altimeter, accelerometer, compass, gyroscope and thermometer Night Mode offers an always-on mode that uses just enough backlight for nighttime activities Interval, structured, triathlon, multisport and strength training modes; training programs and plans created by COROS athletes and coaches available free on the COROS website With over 200 preloaded strength exercises, COROS Training Mode and the COROS app allow you to build customized workouts for running, cycling, swimming and strength training Features running, cycling, swimming, cardio, strength, winter and water sports modes with ongoing support and updates Provides built-in running power metrics from the wrist, plus native and complete integration with Stryd power meters (not included) Track Run Mode uses a proprietary algorithm to make sure your track runs and workouts are measured accurately Fully customizable data screen supports up to 6 different metrics per screen Enhanced Digital Dial offers easy operation even with thick climbing gloves GPS, GLONASS and BEIDOU satellite connections; ANT+/Bluetooth for accessories; Bluetooth for smartphone only Working Temperature: 14 to 140°F (-10 to 60°C) Water resistance to 10 atm (100 m/328 ft.)