Embrace Wellness with Nova Ring for a Balanced Life

To help you find the perfect fit, we offer eight different sizes, ranging from size 6 to size 13. For the best experience, we recommend using our free sizing kit before making a purchase—this way, you can test and choose the ideal fit for your finger.
US Size Inside Diameter US Size Inside Diameter US Size Inside Diameter
6 16.51mm 7 17.40mm 8 18.20mm
US Size Inside Diameter US Size Inside Diameter US Size Inside Diameter
9 19.00mm 10 19.90mm 11 20.70mm
US Size Inside Diameter US Size Inside Diameter
12 21.50mm 13 22.30mm
US Size Inside Diameter
6 16.51mm
7 17.40mm
8 18.20mm
9 19.00mm
10 19.90mm
11 20.70mm
12 21.50mm
13 22.30mm
 

Get a Free Sizing Kit

To make sure you get the best fit, we offer a free sizing kit!

This lets you test different sizes before ordering your Nova Smart Ring, so you can find the one that feels just right.
Get a Free Sizing Kit

Pro Tips for Sizing

Go for the bigger size

Finger size fluctuates throughout the day due to temperature, activity, and hydration. To ensure a comfortable fit, we recommend choosing a slightly larger size to avoid a too-tight fit, even on the smallest of the three recommended fingers (the ring finger). The ideal size allows the ring to slide over your knuckle with slight resistance while staying securely in place. Shake your hand—if the ring slips off, try a smaller size. Wear the sizing kit for two days to find your perfect fit.

Test different fingers

We recommend wearing it on your index, middle, or ring finger. These fingers provide the best contact for heart rate, HRV, and sleep tracking. Try it on both hands to see which provides the best fit.

Still Unsure?

If you're stll unckcldod, roach out to our support team at support@novaring.com

--we'ro happy to holp you find tho parfoct siza!