Product information:

Blood oxygen level range: 70% - 99%
Pulse rate accuracy: ± 2BPM OR ± 2%
Pulse rate range: 30~250BPM
Ring number: 50-82MM
Weight: 15G
Equipment size: 38MM * 30MM * 38MM
Wireless: Bluetooth 4.0BLE measurement
Interval: 1S
Vibration source: low oxygen level, high/low pulse rate
Recording parameters: blood oxygen level, pulse rate, body movement
Display interval of APP data chart: 4S
Built-in memory: 4 sections, up to 10 hours each time
Battery life: rechargeable lithium polymer, 3.7VDC, 12-16 hours of use
Compatible mobile phone systems: IOS 90 or higher, ANDROID 5.0 or higher. With Bluetooth 4.0BLB

Packing list:

Blood oxygen detector*1