Blood Pressure Oxygen Heart Rate Monitor Sport Fitness Tracker Bluetooth Smart Wristband

Specification: 
Color: Black, Blue, Red, Khaki. 
Compatible OS: Android 4.4, IOS 8.0 or above. 
Operating Mode: Single Touch. 
Bluetooth Version: 4.0. 
Language: English, Chinese. 
Weight: 20.8g. 
Size: 42.3*21.5*10.7mm. 
APP: Hero Band. 
Waterproof: IP67. 
Heart Rate Monitor: Support. 
Blood Pressure Monitor: Support. 
Sreen Size: 0.96inch Color Screen. 
Type: IPS. 
Battery Capacity: 90mAh. 
Standby Time: About 25days. 
Working Time: About 5days. 
Sensor: Three-axis Sensor, Green Light Heart Rate Sensor. 
Band Material: Rubber. 
Length:240mm. 
Processor: NRF52832. 
  
Package Included: 
1 * B22 Blood Pressure Oxygen Heart Rate Monitor Sport Fitness Tracker Bluetooth Smart Wristband. 
1 * USB Cable. 
1 * User Manual