Wide Compatibility (Android Phone can sync all BUT IPHONE CAN ONLY SYNC calls, call log, phonebook and music, No App needed, iphone can NOT sync text message and others) - This smart watch can support most android and ios phones. Such as iphone 7/7 plus, iPhone 6/6 plus, iPhone 6s/6s plus, iPhone 5/5s , iPhone se, Samsung Galaxys8/s8 plus/s7/Note 5,Google Pixel/Pixel XL,HTC, Sony, LG, HUAWEI, ZTE, OPPO, XIAOMI etc. smart phones.
Smart Watch + Cell Phone Watch + Health Control + Media Control All in one, Smart Watch, Cell Phone Watch, Sync Watch in one watch, Insert Sim Card and use as a regular Cell Phone Use As an Independent Phone - If you install the GSM SIM card into the smart watch, you can make phone call directly from the smart watch, including answering and dial-up. If not put SIM card, you can connect watch with phone by bluetooth, then you can make phone call, including answering and dial-up
Phone function - Make phone call directly from the smart watch,including answering and dial-up.SIM slot,Single SIM card (micro SIM card) can be as a phone,support make calls by Bluetooth or smart watch;GSM/GPRS 850/900/1800/1900(2G,not support CDMA); Call,hand free,call record,phone book;Bluetooth phone call.
Health Control Center(Build-in functions on watch):
Pedometer / Sleep monitor / Sedentary reminder
Sync function(Only for Android) - Whatsapp,Twitter,Facebook,Browser(need put a 2G/2.5G network SIM card); time,schedule,read text message;Sport health: sleep monitoring,sedentary remind. Other functions: Image viewer, Sound recorder (need put and SD card ), Remote capture, Alarm clock, Calendar,Camera (0.3M),Two way Anti-lost.
Warning: Designed to charge by computer USB port, other unauthorized charger MAY DAMAGE the battery. Don't Heat battery or leave the watch in hot condition. Stop using the battery on damaged or swelled condition and contact seller at once.