Tracks steps, distance & calories burned. Syncs automatically to your computer or select Bluetooth 4.0 smartphones or tablets. Set goals, view progress & earn badges. Share & compete with friends throughout the day. Free iPhone & Android App Small & discreet
- wear in pocket, on belt or bra. Log food, weight & more on Fitbits website or apps Sweat-, rain- & splash proof. Replaceable battery with a 4-6 month life.