RK-C258 H11 Smart Bluetooth Ring With Sleep / Heart Rate Monitoring, Size: 10(Black)

1. High-quality sensor chip, with an accuracy of up to 95%

2. Real-time monitoring, can be viewed in the APP

3. Material: stainless steel

4. Function: heart rate/blood oxygen/water surface monitoring/steps/temperature

5. Working method: BT connection APP

6. Battery capacity: ring 18mAh, charging box 180mAh

7. Charging time: 2 hours

8. Working time: 3 days

9. Waterproof: IP68

10. Size: 7, 8, 9, 10, 11, 12

11. Product net weight: about 3g

12. This product is manually measured, and there may be an error of 0.1-0.2 mm and 0.1-0.2 g in length and weight; due to display and light problems, there may be a slight color difference. Please refer to the actual product!

13. Note: The shipment only includes the smart ring + charging box, not other items in the picture!

Specification: