Install an unlocked Micro sim card after you open the back cover to make Phone calls, GSM bands 850/900/1800/1900MHz.

If you don't have a micro sim card, you can also make phone calls after you connect your watch to your Android smart phone via Bluetooth.

High sensitive capacitive touch screen, perfect wearable technology sensitive screen allows you cooperating with your phone smoothly.

Self-Timer, take photos by your smart watch or use smart watch control the phone camera.

support message push from Skype,Wechat,Twitter or Facebook; Other Features: time,schedule,read and send SMS,Skip News, Sport health: Pedometer,sedentary remind,sleep monitoring etc.

Featuring a rectangle design with a metal frame, The smart watch provides quick and easy access to notifications, apps, and widgets. Track your fitness, check sports scores, skim SMS and App messages, and more. The smart watch is compatible with most Android and iOS devices, so you only need to lift your wrist to see most of the phone messages, don't need to take out your phone and read them carefully.

Specifications:

GSM 850 / 900 / 1800 / 1900 MHz, Single Micro SIM Card
Bluetooth Dialer, Call Reminder, Bluetooth Phone Calling
Bluetooth SMS / IM Message Notified
1.56" TFT LCD Touch Screen 240*240 pixels
2.0M Camera
Pedometer, Sleep Monitor, Sedentary Reminder
CPU: MTK6260A 533MHz
SIM Card: Single SIM Card (Micro SIM Card) Can be as a phone
External memory: Support TF card up to 32GB
Hand-writing: Support
Battery: 380 mAh
Talk Time: 3 Hours
Standby Time: 180 Hours
SMS: SupportGravity Sensor: Support

With Message push function, this watch will reminds you of every message from your friends and show them on the watch screen with a slight vibration to let you know.

After you insert a T-mobile 2g Micro sim card, the watch can work as a Smart phone, besides, you can connect it to your smartphone via Bluetooth if you do not have a prepaid sim card.

This watch is able to track your daily steps, exerise time and sleep time with a built-in chip, different from similar watches sold on the market, with the data the watch will let you know your body more.