Description:<br /> - Bluetooth version: V4.0 BLE<br /> - Waterproof rating: Life-level waterproof・ sweat-proof・ rain-proof・ but do not wear it  when you are showering and swimming<br /> - Sensor: Gsensor 3D accelerator<br /><br />Special Features<br /> - Bluetooth calling: Phone call reminder<br /> - Health Tracker:  Heart Rate Monitor・ Pedometer・ Calories Counter・ Distance・ Sleep Monitor・ Sedentary reminder<br /> - Remote Control: Camera remote<br /> - Other Functions: Alarm Alert・ Time Clock・ Anti-Lost・ Phone Finder<br /> - Compatible OS Android 4.4 / iOS 7.1 and above system<br /> - Screen Display size:0.86 inch OLED screen multi-point touch screen switch mode<br /> - Display type: OLED<br /><br />Battery<br /> - Battery Capacity: 50mAh Li-Poly battery<br /> - Working time: 5~7 days<br /> - Charging type: USB charge<br /> - Charging time: 1~1.5 hours<br /> - Dial and Band Dial shape: Square<br /> - Case material: Plastic