Main Features:<br />● Sleep monitoring<br />Carefully monitor your sleep quality<br />● Heart rate monitor<br />Considerate monitor contact designed on the behind of the watch， take care of your health anytime and anywhere<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 /><br />Brand: Xiaomi<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: Pedometer，Heart rate monitor，Sedentary reminder，Sleep monitor<br />Messaging: Message reminder<br />Other Function: GPS，Alarm，Barometer<br />Screen: Corning Gorilla Glass Screen<br />Screen resolution: 176 x 176<br />Screen size: 1.28 inch<br />Operating mode: Press button<br />Battery  Capacity: 190mAh <br />Charging Time: About 2.5hour<br />Standby time: About 45 days <br />Type of battery: Lithium-ion polymer battery <br />People: Male table，Female table<br />Band material: Silicone<br />Case material: Polycarbonate<br />Shape of the dial: Rectangle<br />Compatability: Android 4.4 / iOS 8.0 and above systems<br />Compatible OS: Android，IOS<br />Package size (L x W x H): 15.00 x 15.00 x 15.00 cm / 5.91 x 5.91 x 5.91 inches<br />Package weight: 0.1980 kg<br />Product size (L x W x H): 24.00 x 2.50 x 1.30 cm / 9.45 x 0.98 x 0.51 inches<br />Product weight: 0.0320 kg<br />Package Contents: 1 x Smartwatch， 1 x Charging Cable， 1 x Chinese-English User Manual