Bluetooth 4.0 Low Energy Technology Smart Healthy Bracelet with IP54 Protection Grade

Spec
Smart wrist band with OLED screenShow steps, Calorie, Distance, Time, Sleep quality clearly.
IP54 Protection gradeEasy to wear with Water-resistant, wear it all day and night even if swimming, rainning, or wash your hands. Your best activity companion.
Silent Vibrate ModeBuild-in silent vibrate mode, a silent wake alarm that gently vibrates to wake you at your desired time, without disturbing your partner.
Sync your stats. See your progressSmartband automatically syncs your data to PCS, Macs, iPhone 4S & 5, iPad 3, Retina & mini, iPod touch, and to select Android phones without plugging in or pushing buttons. This gives you real-time access to your stats on the Smartband dashboard throughout the day. Also with select NFC-enabled Android devices, you can tap your device to launch your Smartband stats.
Help you to get a better Sleep Smartband tracks your sleep time, the times of your wake up. Also with a silent wake alarm. I5 will help you to improve your sleep quality.
Share and Compete With Friends Make progress, win your wards for daily, weekly, monthy achievements. Challenge and compete with your friends, get praise together.