Indigi GSM GT8 Unlocked Smart Watch & Phone w/Activity Tracker for iPhone and Android Smartphone GSM Unlocked phone that can be used from anywhere across the world. 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. Connect to your smartphone via Bluetooth 3.0 and bring all the features to your wrist. After connecting your smartphone via Bluetooth, the GT8 can take outgoing, incoming, and end or reject phone calls directly without touching your phone. When there is an incoming call, The GT8 will ring or vibrate and show the incoming phone number. GT8 can synchronize the phonebook of your smartphone, so contacts can be consulted on the watch instead of the smartphone and you can keep the smartphone in the pocket | Smart Anti-loss technology - After activating anti-loss function, smart watch will ring or vibrate to alert if the smartphone is more than 10 meters away. Pedometer - The watch can record the number of steps you take whenever and wherever, View your current walk distance, fat and calorie consumption. | Sleep Monitor - Wearing it when you sleep will help you monitor how long you sleep and the quality of sleep you're receiving, which reminds you of improving your work and sleep schedules. A goodnights rest makes you energetic and vigorous the whole day. Built-in Camera (new) | 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 | Calender | Alarm | Multimedia | Voice Recorder | Image Viewer | Calculator | Sleep Monitor | Phone locator |