Find Your Perfect Fit
EnergyMo Ring should fit snug and secure on your finger for the most accurate health tracking and all-day comfort.
Choose Your Finger
EnergyMo Ring can be worn on any finger. We recommend the index, middle, or ring finger for optimal sensor performance.
Index Finger
Excellent signal quality and comfortable fit for most hand sizes.
RecommendedMiddle Finger
Strong signal quality with natural, balanced positioning.
RecommendedRing Finger
Classic placement with great sensor contact and all-day comfort.
RecommendedHow to Find Your Size
Choose Your Finger
EnergyMo Ring can be worn on any finger. We recommend the index, middle, or ring finger for optimal sensor performance. Try different fingers to see which feels most natural.
Pro tip: The same finger on different hands may be different sizes. Try both!
Test the Fit
Your EnergyMo Ring should feel snug and secure on your finger, but not to the point where it's uncomfortable. Try making a fist to ensure there are no gaps between the ring and your finger.
Wear It All Day
Take your time to find the perfect fit. We recommend wearing your sizing ring for at least 24 hours before confirming your size. Your finger size changes with temperature, activity, and time of day.
When in Doubt, Size Up
If you're between two sizes, we recommend going with the larger one. A slightly looser fit is more comfortable for sleep and won't affect sensor accuracy.
Free Sizing Kit
Not sure about your size? We include a free sizing kit with every ring order. Try on all sizes from 6 to 13 before committing to your perfect fit.
- Complete set of sizing rings (sizes 6-13)
- Wear for 24+ hours to find the best fit
- Free shipping, no commitment required
Size Chart
| US Size | Inner Diameter | Circumference |
|---|---|---|
| 6 | 16.5mm | 51.8mm |
| 7 | 17.3mm | 54.4mm |
| 8 | 18.1mm | 57.0mm |
| 9 | 19.0mm | 59.5mm |
| 10 | 19.8mm | 62.1mm |
| 11 | 20.6mm | 64.6mm |
| 12 | 21.4mm | 67.2mm |
| 13 | 22.2mm | 69.7mm |
Sizing Tips
Measure at the end of the day when fingers tend to be slightly larger due to normal daily activity.
Avoid measuring when your hands are cold — fingers shrink in low temperatures and expand in warmth.
The ring should sit comfortably without being too tight or spinning freely on your finger.
If you exercise frequently, ensure the ring stays snug during physical activity to maintain sensor accuracy.
Confirm Your Size
Once you've found your perfect fit, confirm your size and get your EnergyMo Ring.
Coming Soon