Indigi 2-in-1 Interchangeable GSM + Bluetooth Smart Watch & Phone w/Camera ~Unlocked! GSM Unlocked - It works with any gsm wireless carriers in the world such as AT&T, T-Mobile, Straightalk, Orange, Vodafone, you name it. You can input your GSM micro SIM-card and gain instant access to an amazing communication device that works like a cell phone on your wrist. Take Outgoing/Incoming/End/Reject Calls - After connecting your smartphone via Bluetooth, the GT8 can take outgoing, incoming, and end or reject phone calls directly without touching your phone. SMS Receive and Reply from SmartWatch  View the message and Reply from your watch Pedometer & Sleep Monitor  Kick start your health by tracking the number of steps youve taken and the calories burned throughout the day + Monitor how long youre asleep and the quality of sleep you're receiving. A goodnights rest makes you energetic and vigorous the whole day. Built-in Camera | Color Touch Screen | Time Display | Calls (Answer, End, Reject) | Caller ID | Messaging | Notification | Remote Camera Shutter | Music | Phonebook | Anti-lost Alert | Built-in Mic & Speaker | Ringtone & Vibration | Pedometer | Audio Player | Calendar | Alarm | Multimedia | Voice Recorder | Image Viewer | Calculator | Sleep Monitor | Phone locator |