PRIVACY IS NOT JUST A PROMISE.
Your Health Data Is Protected by Cloud Enclave & Read-and-Burn.
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We treat wellness data as sensitive information and use privacy and security safeguards. We do not sell personal data. Current service behavior and controls are described in our Privacy Policy.
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Program details are provided under the applicable approved partner arrangement.
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How to Measure Your Finger Circumferenced
You will need: a strip of paper or thin string, a pen, and a ruler.
Wrap the strip around the widest part of the finger you intend to wear the ring on.
Mark the point where the strip overlaps itself.
Remove the strip, lay it flat, and measure the length between the marks with a ruler. This is your finger circumference.
Body weight ranges in the table below are for reference only. Please rely on your actual measured circumference when selecting your ring size.
| International / American Code | Diameter (mm) | Finger Circumference (mm) | Weight (kg) |
|---|---|---|---|
| No.7 | 17.2 | 54.0 | 45–55 |
| No.8 | 18.1 | 56.9 | 55–60 |
| No.9 | 18.9 | 59.5 | 65–70 |
| No.10 | 19.8 | 62.1 | 70–75 |
| No.11 | 20.6 | 64.6 | 75–80 |
| No.12 | 21.4 | 67.2 | 85–90 |
| No.13 | 22.2 | 69.75 | 95–100 |