Size Guide
Find the perfect fit for your H-Core smart ring. Follow our simple measurement guide to ensure optimal comfort and accurate health tracking.
How to Measure
Step 1: Print or Use a Ruler
Print our size guide or use a flexible measuring tape. If using a ruler, wrap a piece of string around your finger, mark where it overlaps, then measure the length with a ruler.
Step 2: Measure Your Finger
Measure the circumference of the finger where you plan to wear the ring. Measure at the end of the day when your fingers are at their largest size. Measure multiple times to ensure accuracy.
Step 3: Choose Your Size
Compare your measurement with our size chart below. If your measurement falls between two sizes, choose the larger size for a more comfortable fit.
Size Chart
| Size | Inner Diameter (mm) | Circumference (mm) |
|---|---|---|
| #7 | 17.9 | 55 |
| #8 | 18.3 | 56 |
| #9 | 19.2 | 60 |
| #10 | 20 | 62.8 |
| #11 | 20.9 | 65 |
| #12 | 21.6 | 67.8 |
| #13 | 22.4 | 70.4 |
Tips for Best Fit
- Measure your finger at the end of the day when it's at its largest size.
- The ring should fit snugly but not too tight. You should be able to slide it on and off with a little effort.
- Consider the knuckle size - the ring needs to pass over your knuckle comfortably.
- If you're between sizes, choose the larger size for better comfort during temperature changes.
Frequently Asked Questions
What if my measurement is between two sizes?
If your measurement falls between two sizes, we recommend choosing the larger size. This ensures better comfort, especially during temperature changes when your fingers may swell slightly.
Can I exchange the ring if the size doesn't fit?
Yes, we offer size exchanges within 30 days of purchase. Please contact our customer service team for assistance with sizing exchanges.
Which finger should I measure?
Measure the finger where you plan to wear the ring most often. Most people wear smart rings on their index finger, but you can choose any finger that feels comfortable. Make sure to measure the specific finger, as finger sizes can vary between hands.