High sensitive capacitive touch screen,perfect match technology. Support Bluetooth V3.0,Compatible with Android system and IOS system.View notifications from email, SMS, Caller ID, calendar and your favorite apps on your wrist. GSM & Bluetooth Smartwatch with Touch Screen Lasts multiple days on a single battery charge. Can work separately as a cell Phone. Bluetooth Dialer & Bluetooth Headset, Music Player, Camera, Alarm Clock, Watch, Pedometer, Vibration Alert This watch can be a real standalone CellPhone,enable to make call or receive call and send or get message via the sim card you inserted .Through Bluetooth, it enable to make call or receive call or get message This watch can also work with iPhone as a Bluetooth device(Means you can receive a call or make a call also sync your contacts to this watch via bluetooth).But Some functions like Notification Push,Remote capture,Anti-lost are currently unavailable on iOS because the iOS app is unavailable now.