●Parameter ●Function: high-definition large-screen display, large memory, independent card calling (support mobile 4G, Unicom 4G, Unicom 3G, 2G), GPS, application download, browser, music, heart rate test, step, multi-sport mode, find mobile phone , taking pictures, tape recorder ●Memory combination: RAM: 3G + ROM: 32GB ●Camera: 5 million ●Connection: WIFI, GPS, GSM, BT ●Supported frequency band: 2G GSM: B2+B3+B5+B8 ●3G WCDMA: B1+B2+B5+B8 ●TD-SCDMA: B34/39 ●4G LTE-FDD: B1+B2+B3+B5+B7+B8+B12+B20 ●LTE-TDD: B38+B39+B40+B41 (100MHz) ●Pedometer: support ●WIFI: Support 2.4G\5G ●GPS: GPS support and compatible with Granas ●Heart rate: support ●Bluetooth: 4.0 ●Display LCD: 2.8 inch screen ●Touch screen specifications: capacitive touch screen ●Resolution: 480*640 ●Speaker: 1609 BOX ●Microphone: Yes ●Battery capacity: 2700MAH high capacity high pressure polymer battery ●Vibration: Yes ●Side button: 2 buttons ●Interface: charging, data download ●Smartwatch Operating system: For Android7.1.1 ●APP Support system: For ios/For android ●Waterproof: IP67 ●Standby Time: 5-7days ●SIM card: Nano SIM card ●Watch side support language: Chinese Simplified, Chinese Traditional, English, French, German, Spanish, Portuguese, Italian, Russian, Polish, Turkish, Korean, Hebrew, Indonesian, Vietnamese, Arabic, Persian Language, Thai, Hindi, Burmese, Bengali, Japanese