Oura Ring 5 Sizing Kit

With the Oura Ring 5 Sizing Kit, you can determine your Oura Ring size. The size of an Oura Ring is different from a standard ring size. Make sure to order this sizing kit first before ordering an Oura Ring 5. This way, you can be sure that you buy the correct size. You receive the € 10 purchase price back as credit. You can use this credit when you buy an Oura Ring 5 at Coolblue. This makes the sizing kit free. Make sure to wear the trial ring for 24 hours, as this ensures you know if the size is comfortable. The Oura Ring is most accurate when you wear it on your index finger. Is it uncomfortable? Try the ring on your middle or ring finger.