S12 Wristband Heart Health Monitor Bluetooth Smart Band Pedometer IP68 Water Proof Sports Bracelet Fitness Tracker Watches (Black) WANKAI

Functions: 
0.66 inch OLED screen
Heart Rate / Oxygen Detection No Blood / Blood Pressure Detection / Fatigue Detection
Over time, a pedometer, Calorie Consumption meter, Distance calculation, Sleep time, CamOn / Off dispaly
Standard Exercise Functions (Pedometer & Calories Consumption - Distance Calculation)
Detection of sleep (the time of Sleep, the quality of Sleep)
Calls to remind, SMS Reminder, Third-party reminder messages: Wechat / QQ.
Anti-lost function (overtop the working distance connection between the mibile phone and the wristband will give the reminder)
Alarm clock
Reminder task (Sedentary reminder / Drink water reminder)
The establishment of health goals
Remote camera
Synchronous data for APK / APP
Download / Install Application of the bracelet download the "Hey band" from Android market or Apple store
Check the following QR code and download "Hey Band"

specifications
System requirements: Android system version 4.4 or above; IOS system version 8.0 or above; With bluetooth version 4.0 support;
Bluetooth version: BLE 4.0
Chip: NRF52832
Ram: 64K (Flash 512K)
Screen: 0.66 inch OLED
Battery: 100 mAh
Standby time: About 20 days
Working time: 7 days
Engine: Built in, vibratng reminder
Waterproof level: IP67
Sensor: G-