Indigi&reg; 2-in-1 Interconvertible Bluetooth Sync Smart Watch Phone w/ optional micro SIM-Card Slot for AT&T T-Mobile UNLOCKED (Silver) Synchronizes Phone Calls - After connecting smartphone via Bluetooth, SWAP ONE can make, end, or reject phone call directly without touching your phone. When incoming calls, SWAP ONE will ring or vibrate and show incoming phone number. SWAP ONE can synchronize phonebook of the smartphone, so contacts can be consulted on the watch instead of the smartphone and you can keep the smartphone in the pocket. Pedometer - The watch can record walk steps whenever and wherever, view current walk distance, fat and calorie consumption. | Sleep Monitor - Wearing it when you sleep will help you monitor how long you sleep and how good your sleep is, which reminds you of improving your work and sleep schedules. A good sleep makes you energetic and vigorous a whole day. Smart Anti-lost - After activating anti-lost function, smart watch will ring or vibrate to alert if the smartphone leaves smart watch 10-20 meters away. 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 | FM Radio| Calender | Alarm | Multimedia | Voice Recorder | Image Viewer | Calculator Sleep Monitor | Phone locator |