With Elevate wrist heart rate technology, you can ditch the chest strap and measure heart rate from the wrist. Using heart rate data, vÃvoactive HR provides calories burned information and quantifies the intensity of your fitness activities, providing better credit for your efforts. Run, bike, swim, golf, ski and more with vÃvoactive HR. Its GPS-enabled built-in sports apps track your stats while smart notifications allow you to stay connected - all so you can keep your life in balance. vÃvoactive HR continues to track activity throughout your day by counting steps and floors climbed as well as monitoring sleep and calculating intensity minutes. You won't have to worry about this watch keeping up with you. Using its built-in accelerometer and GPS, vÃvoactive HR allows you to run both indoors and out. You can set up vibration alerts for heart rate, pace, run/walk intervals and more. Other training features include Auto Lap and Auto Pause. Provides post-run summary with stats such as total mileage, calories, average pace and overall time. Product Type: Smart watch Connectivity: Bluetooth, ANT/ANT+ Supported Host Device OS: iOS, Android Display: - 205 x 148 pixels Input: Touch screen Tracking Data: Distance, time, speed, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, pace, swim stroke rate, golf shot distance Band: Black - band Regular Features: Navigation, missed calls notification, music remote handling, Heart Rate target zone selector, calendar notification, SMS notification, Email notification, changeable strap, find phone function, call alerts, Bluetooth Smart technology, social apps notification, VIRB control, PinPointer, digital scorecard Battery Run Time: Up to 8 day(s) Dimensions (WxDxH): 1.2 in x 0.4 in x 2.2 in Weight: 1.68 oz Product Type: Smart watch Integrated Components: Navigation Supported Host Device OS: iOS, Android Tracking Data: Distance, time, speed, calories burned, activity, sleep activity, heart rate, steps taken, floors climbed, pace, swim stroke rate, golf shot distance Features: Missed calls notification, music remote handling, Heart Rate target zone selector, calendar notification, SMS notification, Email notification, changeable strap, find phone function, call alerts, Bluetooth Smart technology, social apps notification, VIRB control, PinPointer, digital scorecard, accelerometer, digital compass, altimeter, heart rate Type: Color Resolution: 205 x 148 pixels Dimensions (WxH): 1.1 in x 0.8 in Wireless Interface: Bluetooth, ANT/ANT+ Type: Touch sensitive screen Technology: Lithium Run Time (Up To): 8 day(s) Run Time Details: Navigation tracking - up to 13 hour(s) Typical usage - up to 8 days Name: Band Size: Regular (fits wrists 137-195 mm) Color: Black Width: 1.2 in Depth: 0.4 in Height: 2.2 in Weight: 1.68 oz Preloaded Software: Calendar, Time, Alarm, Date Vibrating Alert: Yes Protection: Waterproof Included Accessories: Charging cradle