Watch introduction: Product parameter Bluetooth: BLE 5.0 Call Bluetooth: BLE 3.0 Waterproof level: IP67 Main control chip: HS6621, 128M flash, Zhongke call chip Acceleration sensor: SC7A20 Heart rate module: SC7R30, 128KB+1M, red light + green light module, support dynamic heart rate/blood pressure/oxygen detection Display type: 1.28 inch pure round colorful display To-uch screen: full to-uch Resolution 240*240 pixels Battery type: polymer lithium battery Battery capacity: 260 mA Charging time is about 60 minutes Working time: 5-7 days Standby time is about 30 days Support mobile phone system: Android 4.4 and above, IOS8.4 and above 8.4  
feature: 
Incoming call/SMS content push 
Information reminder APP has a function enable switch (answering/making calls supports mobile phone connection to watch answering calls and listening to songs, heart rate monitoring, blood pressure/blood oxygen monitoring, sleep monitoring, exercise pedometer/calorie consumption/exercise time, call reminder and display message push and display remote control Automatically test heart rate by taking photos. Multi-sports mode. Sedentary reminder. The alarm clock is set to 5 kinds of dials by default, and the APP can be customized.  
Support language:

The bracelet interface supports 23 countries including Chinese, English, French, Spanish, Portuguese, Russian, and Polish (multi-language support for message content push) 
APP supports languages Chinese, English, Chinese [Traditional], Japanese, Korean, French, German, Russian, Polish, Spanish, Portuguese, Dutch, Arabic