Turn your everyday life into a fun path to fitness. Much more than a pedometer, Zip tracks your steps, distance, and calories burned -- then automatically syncs the data to your Fitbit account. Whether online or through the Fitbit app, you can set goals and stay motivated to keep on your path to fitness with graphs, badges, and friendly competitions. Check to see how you compare with friends and family and even provide a message to egg them on. Your stats wirelessly upload via computer or select mobile devices (like the iPhone 4S), so you will know in real time when you are close to a goal and when youve reached one. Syncs automatically to your computer or select Bluetooth 4.0 smartphones or tablets. Small and discreet - wear in your pocket, on belt or bra. Replaceable battery with a 4-6 month life. Suitable for walking, running and the gym. Date and time display. LCD display. Multi body position monitor. Size H20, W9.1, D2.3cm. Weight 0.11kg. Batteries required 1 x button cell (included).