FitBit Zip

This device uses steps to allocate your Active Dayz™
 

Turn everyday life into a path to fitness with the Fitbit Zip. It is a simple device that tracks all-day activity like steps taken, distance travelled and calories burned. It sync stats to your computer and selected smartphones. The Zip encourages you to set goals and challenge friends. The battery inside Zip lasts four to six months. It has a low battery indicator on the LCD screen.

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Fitbit Zip