Garmin vívoactive 4S GPS Watch - Wrist - Heart Rate Monitor, Barometer, Altimeter, Accelerometer, Thermometer, Pulse Oximeter Sensor, Digital Compass, Odometer - Alarm, Timer, Stopwatch, Calendar, Music Player, Scorecard - Heart Rate, Steps Taken, Sleep Quality, Calories Burned, Distance Traveled - 1.1" - 218 x 218 - Touchscreen - Bluetooth - Wireless LAN - GPS - 168 Hour - Round - 1.57" - Silver - Powder Gray Case - Glass Lens, Stainless Steel Bezel - Fiber Reinforced Polymer, Polymer Case: