Screen size: 1.77 inches Screen: HD IPS, 240*285 Pixels 2.5D curved full touch screen, 320x385 resolution. CPU: MTK2502 Memory: 256MB Battery: 220-300mAh lithium ion battery, longer battery life. System: Support Android5.0&IOS9.0 and above. Languages: English Dutch Russian French Portuguese German Spain Turkey Poland Malay Czechoslovakia Arabic Thai Italy. IP67 life waterproof, please do not bring your watch to swimming, diving, bathing and sauna. Notification:Synchronous incoming messages notification from Notification Center in your phone(SMS,Fackbook,INS,Twitter,Whatsapp, etc.),incoming call reminder. Calls: Make & Answer calls, after connecting Bluetooth with Smart Phone. Heart rate detection/Blood Pressure detection/Blood oxygen detection. Sleep monitoring: To record and analyze your sleep status objectively and scientifically. Steps: Steps counting, Calories, distance monitor. SportModes.(running,climbing,football). Bluetooth music player: Remote control phone music player. Bluetooth Camera: Remote control mobile phone to take photo. Find Phone: Anti-lost, Ring your phone or watch. custom watch face:you can upload your own photos on the watch as the watch faces. Support different kind of 42/44 strap exchange. Sedentary reminder: Set time to reminder you to sport, changing the unhealthy lifestyle. Other function: Alarm, Calculator,Stop,Intelligent voice,Phone book,weather.