Fitbit Charge HR Heart Rate and Activity Tracker Wristband Plum Large Type: Fitness Band Color: Purple Size: Large Features: Tracks 7 days of detailed motion data – minute by minute. Specification: Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times Power Source: Syncing range: 6 m Battery Life: Call notifications via Bluetooth 4.0 Operating Environment: Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices
