Winto 2024 Bluetooth Intelligent Health Ring, SR03C, Stainless Steel, All-day Tracking, Monitoring

Winto 2024 Bluetooth Intelligent Health Ring, SR03C, Stainless Steel, All-day Tracking, Monitoring Hear Rate, Blood Oxygen, Blood Pressure, Sleep, Steps and daily activities. 

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1.Bluetooth Chipset:  AC6323

2.Bluetooth version: V5.0

3.Accelerometer sensor: SC7A20H

4.Photoplethysmography sensor (PPG): GH3018

2. Working time:3-7 days

3. Standby time:7-10 days

5.Charging Time:1-2H 

6. Battery: 3.7V/20mAh

7.  Sizes: Size 7-Size 13 (7 sizes Inner Diameter: 7#17.3mm, 8#18.1mm, 9#18.9mm, 10#19.8mm，11#20.6mm, 12#21.4mm、13#22.2mm) 

9.Weight:3.6g~4.5g 

11. Waterproof : IP68

12. Charging: Magnetic charging

13. App: SmartHealth

14. System: Android 6.0, iOS 11.0 or above.