Battery:60mAh lithium polymer; Motor:Somatosensry vibration motor; Reliability:Water-proof & Dust-proof IP67;S55 Bluetooth 4.0 Smart Bracelet Sport Watch with Pedometer Sleep Monitoring Calorie-burning Counter for Android Smart Phones;High quality Textured TPU material band, waterproof insert for DC port;Pedometer, sleep tracker, caller ID, SMS notification, sedentary reminder. Multi language available for APP;Smart alarm clock by setting clock alert APP on your phone, Smart Bracelet will busser to wake you up in the appropriate time, to provide the best sleep quality for you.

• S55 Sport Bluetooth Smart Watch Activity Wristband Fitness Tracker with Pedometer Sleep Monitoring Calorie-burning Counter for Android Smart Phones (Red)
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S55 Sport Bluetooth Smart Watch Activity Wristband Fitness Tracker with Pedometer Sleep Monitoring Calorie-burning Counter for Android Smart Phones (Red)wangyishengshi