SREEGA GT08 Bluetooth Smart Watch with Camera SIM Card Slot and Smart Health Watch for Android Smartphone and Iphone ( Silver Black band ) Bluetooth Dialer, Call Reminder, Bluetooth Call,Bluetooth SMS/IM Message Notifier. Pedometer, Sleep Monitor, Sedentary Reminder, Remote,Camera,Calendar GSM 850/900/1800/1900 MHz , Single Micro SIM Card Lasts multiple days on a single battery charge 1.54" TFT LCD Touch Screen 240*240 pixels 0.3M Camera, Video Recording Support Download the companion Android App Mediatek Smart Device from Google Play direcly. Currently no iOS app available for iPhones Phone function: Make phone call directly from the smart watch,including answering and dial-up.SIM slot,support make calls by Bluetooth or smart watch