Fitbit Alta HR with PurePulse Heart Rate Detection - Fitbit SmartTrack feature automatically recognizes and records exercises for you, so you can keep track of your workouts without ever pushing a button! - Tap the slim OLED display for instant access to your stats, time and smartphone notifications. - Alternate bands sold seperately in classic, leather and metal.
Syncs with 200+ leading smartphones running iOS, Android and Windows operating systems as well as Windows and Apple computers. See Fitbit.com/devices for complete compatibility details.