OURA RING 4 SIZING KIT – The Oura Ring 4 Sizing Kit is the ideal way to find the perfect size. It’s a custom sizer that allows for you, and those around you, to find the perfect fit before purchasing.
RECEIVE $10 CREDIT – With a sizing kit purchase, receive a $10 Amazon credit towards the future purchase of an Oura Ring 4. Sizing kit is not returnable (terms and conditions apply).
NOT STANDARD SIZING – Oura Ring 4 sizes are slightly different from standard ring sizes, so it is important to size yourself using our Oura Ring 4 sizing kit and to follow the instructions provided. Oura Ring 4 is available in sizes 4-15. There are no half sizes.
