Rugged GPS smartwatch is water-rated to 100 meters and thermal- and shock resistant with fiber-reinforced polymer case and scratch-resistant Corning Gorilla glass; designed to fit a smaller wrist Built-in sports apps to take on running, biking, swimming, strength training and more; plus, VO2 Max and other training features Live the ultimate connected life with smart notifications and Connect IQ compatibility when paired with your compatible smartphone. Track your adventures with the built-in 3-axis compass and barometric altimeter, plus multiple global navigation satellite systems (GPS, GLONASS and Galileo) Battery life: up to 21 days in smartwatch mode; up to 22 hours in GPS mode Attributes Battery Type Lithium Ion Connectivity ANT+, BT Customizable Screen Yes External Sensor Compatibility Speed/Cadence/HR GPS Yes Heart Rate Monitor Yes Primary Color Grey Solar Charging No Touchscreen No Watch Color Graphite Wristband Graphite - Silicone