Track Steps, Distance, Calories Burned and Sleep Metrics</br>Uses Bluetooth technology to connect with smartphone apps and display fitness and activity data conveniently on the wrist</br>Countdown Timer, Alarm and Perfect Date (perpetual calendar)</br>Genuine Leather Strap with Quick-Release Spring Bars for Easy Changeability</br>Indiglo Light-Up Watch Dial</br>Water resistant to 50m (165ft: in general, suitable for short periods of recreational swimming, but not diving or snorkeling</br><br/>http://www.amazon.com/gp/product/B01N0R1TTF