Screen size: 1.77 inchesScreen: HD IPS, 240*285 Pixels 2.5D curved full touch screen, 320x385 resolution.CPU: MTK2502Memory: 256MBBattery: 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.