Main Features:<br> ● Heart rate monitor<br> Considerate monitor contact designed on the behind of the watch, take care of your health anytime and anywhere<br> ● GPS + GLONASS dual positioning<br> Easy to find accurate position, provide you safe assurance<br> ● Sleep monitoring<br> Carefully monitor your sleep quality<br> ● Bluetooth 4.0<br> Connected with mobile phone App, stable, fast and super low consumption<br> ● 1.28 inch with 2.5D Corning Gorilla Glass screen<br> Best suitable screen size with high definition picture displaying gives you great experience<br> ● 3.7V / 190mAh Polymer Lithium Battery<br><br> </p> General:<br> ●Bluetooth Version: Bluetooth 4.0 <br> ●IP rating: IP68<br> ●Waterproof: Yes<br> ●Alert type: Vibration <br> ●Bluetooth calling: Phone call reminder <br> ●Health tracker: Heart rate monitor,Pedometer,Sedentary reminder,Sleep monitor <br> ●Messaging: Message reminder <br> ●Other Function: Alarm,Barometer,GPS<br></p> Screen:<br> ●Screen: Corning Gorilla Glass Screen <br> ●Screen resolution: 176 x 176 <br> ●Screen size: 1.28 inch <br> ●Operating mode: Press button<br></p> Battery:<br> ●Battery Capacity: 190mAh <br> ●Charging Time: About 2.5hour <br> ●Standby time: 45 days<br> ●Type of battery: Polymer lithium battery<br></p> Material:<br> ●Band material: Silicone <br> ●Case material: Polycarbonate <br> ●Shape of the dial: Rectangle<br></p> Compatability:<br> ●Android 4.4 / iOS 8.0 and above systems<br>