The Oura Ring 5 Sizing Kit allows for you and those around you to find the ideal fit before purchasing. With a sizing kit purchase, a voucher for the cost of the kit will automatically be applied to your Oura Ring 5 at checkout. A properly fitting Oura Ring 5 will result in the highest possible data accuracy, comfort, and overall experience. Oura Ring 5 sizes are slightly different from standard ring sizes and other Oura Ring generations. It's important to size yourself and follow sizing instructions. Oura Ring 5 works on all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing on your index, middle, or ring finger.

Skip the extra steps! Order your sizing kit directly through the Oura Ring 5 listings to lock in your order.