R8 SIZE 20 Smart Ring, Support Heart Rate / Blood Oxygen / Sleep / Multiple Sports Modes

About Product
1. Material: ceramics+steel
2. Main Chip: NORDIC NRF52832-CIAA
3. Chip: SY8602
4. Sensor: QMA6100P
5. Battery: 23mAh,3.7/4.2V lithium battery
6. Sports Measure:Calories, Steps, Mileage
7. Sleep Monitor: 20:00-8:00
8. Multi-sports modes:Running, cycling, skipping rope, fitness, mountaineering, yoga, golf, dance
9. Heart Rate checking, blood pressure, Blood oxygen, Fitness track
10. Charging mode:Magnetic Charging Cable,case charging
11. The APP system requires Android: 6.0 or above,IOS: 11.0 or above
12. Bluetooth version:5.2
13. Charging voltage: 4.6-5.2V
14. APP name: SmartHealth
15. Dust Proof & Waterproof Level: IPX8
16. APP Language: English,Simplified Chinese,Chinese traditional,Russian,Ukrainian,German,French,Italian,Spanish,Portuguese,Polish,Greek,Romanian,Hungarian,Turkish,Czech,Slovak,Irish,Croatian,Swedish,Danish,Finnish,Arabic,Hebrew,Persian,Norwegian,Japanese,Korean,Thai,Vietnamese
17. Size 20: Outer Diameter=26.5mm; Inner Diameter=19.8mm

Packing List:
Smart ring x1
Charging case x1
User manual x1