Smart watch,JoyGeek Gear S Bluetooth Watch Unlocked Watch Phone for Android Smartphones and iPhone(Silver) ALL-IN-1: Make phone call directly from the smart watch, including answering and dial-up. SIM slot,support make calls by Bluetooth Mode or Smartwatch Mode. SYNC: Twitter,Facebook;time,schedule,read message or news(the fuction only supports Android system,it is unavailable on iOS) FUCTIONS: Music Player,Camera,Remote Shutter,Alarm,File manager,Browser,Pedometer Sleep Monitoring,Sedentary reminder,Calculator,Recording,Bidirectional and anti-lost. NOTE: It supports Android cellphones and iPhone.The App name is"BT notification",you can scan the QR code to get the APP on Android system,Pls note the APP not support android iOS.If your phone is iOS system,you can connect your Phone and the watch via Bluetooth. GUARANTEE: It comes with a 12-month warranty and 30-day 100% money back full refund guarantee. If you find any quirks let our highly-rated, friendly and responsive after-sales support know and we'll refund 100% of your money back, no questions asked. Click the Add To Cart button NOW to ensure you receive it on Amazon.