Master Chip:    nRF52832    
Sensor: BST-BMA253    
PPG chip:    HRS3300DS
Screen Size: 1.3 Color IPS TFT screen 240*240    
Virbation: Loundspeaker Mute/Vibration    
Waterpfoof: IP67    
Compatible System: Android 4.4 and above,iOS 8.2 and above     
Features: Can share real-time data with families    
Main Feature: Step / calorie / distance, multi movement mod, Heart rate monitoring, blood pressure monitoring , Blood Pressure,Heart Rate, Remote care function, sleep monitor ,sport,Call reminder ,Alarm Reminder ,Raise you hand the watch lightr,Social share(wechat,QQ,Facebook,Twitter,shake hand to take phonto"    
BLuetooth: 4.0BLE(Low power)    
Battery :    180mAh    Polymeter Lithium Battery
Endurance Time: Can use 7-10days,Standby Day: 20-30days    
Data Save Time: 3 months    
Manipulation Mode     Full touch control, mobile phone APP control    
Material    Front shell: PC, rear shell: ABS+PC strap: environmental protection TPU    
Color: Black / Blue / red