Charging and how to get started
Charge the R03 Ring with the included charging cable and case. The heart rate light will light up to indicate successful startup. Then you can use the Qring app to connect the R03 Ring and start tracking.
Which finger should I wear my ring on?
For best performance and accuracy, we recommend wearing the R03 Ring on your index finger. If you prefer other fingers, the middle and ring fingers can work. Avoid using fingers that are narrower than the knuckles at the base.
Ring Sizing
The size of rings may not be completely in line with universal standards. Please measure your finger circumference before purchasing and make sure it fits comfortably, then choose the appropriate size. See product images for measurement guide.