This phone will only work with 2G: GSM 850\/900\/1800\/1900MHz  It's unlocked for worldwide use， customers please take a check to see if your local area network or the communication operator you are using is compatible with this phone before purchase. You can also go to this topic [===Official Help Center=== How To Check If This Phone Can Be Used In Your Country] to find how to confirm this. <br>          Product Overview           Model               NO.1 D3           Product modeling               Smartwatch           Environmentally friendly products               Yes           Quality Standards               Enterprise Standard           Touch Screen Size               Capacitive touch           Features           Horse race lamp               Support           Make calls               Support           See text messages               Support           Contacts               Support           Player               Support MP3           Camera               0.3MP           Pedometer               Support           Bluetooth               Support Bluetooth 3.0           Sleep Monitor               Support           Sedentary Reminder               Support           Alarm               Support           Remote camera               Support           Thermometer               Support           Data Synchronization               Support           Automatic wake-up               Support           Language               Version A: Chinese， traditional Chinese，                         English， Japanese， Korean.    Version B(default): English， Chinese， German， Spanish，                         Italian， French， Portuguese， Russian， Turkey.    Version C: English， Chinese， Indonesia， Malaysia，                                              Poland， Vietnam， Hebrew，                         Arabic， Persian， Thai， Myanmar.           Hardware           Speaker               Support           Battery capacity               350mAH           Vibration motor               Support           Antenna               Support           Side buttons               Support           SIM card               Support Micro SIM           RAM \/ ROM               32M \/ 32M           SD Card Expand               16GB           Network               2G: GSM 850\/900\/1800\/1900MHz           Headphone               Not Support           Chargers               Support           USB               Support 5pin micro usb           Hardware platform               MTK6261           Screen               1.22 inch IPS， 128*128           SPK amplifier               Support           G-SENSOR               Support           Color               Silver， Black， Blue