Product details
The Oura Ring 4 size trial set allows you to determine the optimum size for the Oura Ring 4 before you buy. Try on different sizes and wear them for 24 hours to find your perfect fit. As the sizes of the Oura Ring 4 differ slightly from the standard ring sizes, it is important to determine the correct size before purchasing.
30-day right of returnReturn policy
24 Months Bring-in WarrantyWarranty provisions