Main Features:</br> ●Standby times: Approximately 45days</br> ● Sleep monitoring : Carefully monitor your sleep quality</br> ● Heart rate monitor: Considerate monitor contact designed on the behind of the watch， take care of your health anytime and anywhere</br> ● Bluetooth 4.0 : Connected with mobile phone App， stable， fast and super low consumption</br> Best suitable screen size with high definition picture displaying gives you great experience</br> Bluetooth Version: Bluetooth 4.0 </br> Waterproof: Yes </br> IP rating: IP68</br> Bluetooth calling: Phone call reminder </br> Messaging: Message reminder </br> Health tracker: Heart rate monitor，Sleep monitor</br> Operating mode: Press button</br> Type of battery: Lithium-ion polymer battery </br> Battery Capacity: 190mAh</br> People: Female table，Male table</br> Shape of the dial: Rectangle </br> Case material: Polycarbonate </br> Band material: Silicone</br> Compatible OS: Android，IOS</br> Product size (L x W x H): 19.50 x 3.50 x 0.80 cm / 7.68 x 1.38 x 0.31 inches </br> Package size (L x W x H): 5.00 x 5.00 x 5.00 cm / 1.97 x 1.97 x 1.97 inches </br> Package weight: 0.215 kg</br> Package Contents:</br> 1 x Smartwatch</br> 1 x Charging Cable</br>