This phone will only work with 2G: GSM 850\/900\/1800\/1900MHz， 3G: WCDMA 850\/2100  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 D5           Product modeling               Android Smartwatch           System               Android 4.4           Cpu               MTK6572           Resolution               360 * 360 ， 16 Million color           RAM               512MB           ROM               4GB           Wifi               Support           Google Play               Support           Features           Make calls               Support           See text messages               Support           Contacts               Support           Heart Rate               Support           Pedometer               Support           Bluetooth               BT2.1 + BLE4.0           Browser               Support           Barometer               Support           Voice Search               Support           Alarm               Support           Remote camera               Support           Weather               Support           Health Data Synchronization               Support           Change Clock Face               Support           Instill App                    Support              Hardware           Speaker               Support           Waterproof               IP65           Battery capacity               450mAH           Vibration motor               Support           Antenna               Support           Side buttons               Support           SIM card               Support Micro SIM           Network               2G: GSM 850\/900\/1800\/1900MHz; WCDMA 850\/2100           Chargers               Support           USB               Support           G-SENSOR               Support           Language               English， Simplified \/ TraditionalChinese            Package included               1 X NO.1 D5 Smart Watch                   1 X Charging Dock                   1 X USB Charging Cable                   1 X Chinese and English Manual