Oura Ring 4 Sizing Kit - Find Your Perfect Fit Before Purchase

The Oura Ring 4 Sizing Kit allows for you and those around you to find the ideal fit before purchasing. With a sizing kit purchase, receive a $10 Walmart Cash to use towards the future purchase of an Oura Ring 4.

A properly fitting Oura Ring will result in the highest possible data accuracy, comfort, and overall experience. Oura Ring sizes are slightly different from standard ring sizes, so it is important to size yourself using our tools and to follow our sizing instructions.

Oura Ring works on all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing your Oura Ring on your index, middle, or ring finger.

• ACCURATE SIZING: The Oura Ring 4 Sizing Kit is a custom sizer designed to help you find your perfect ring size before purchasing
• RECEIVE $10 WALMART CASH: With a sizing kit purchase, receive a $10 Walmart Cash to use towards the future purchase of an Oura Ring 4. Sizing kit is not returnable (terms and conditions apply)
• TRY IT YOURSELF AND SHARE: Ideal for personal use or sharing with others to ensure everyone gets the right fit
• UNIQUE SIZING: Oura Ring 4 sizes differ from standard ring sizes, so it's essential to use the official sizing kit and follow the provided instructions
• AVAILABLE SIZES: Oura Ring comes in whole sizes only, ranging from size 4 to 15 (no half sizes available)
• COMFORT AND ACCURACY — A properly fitting Oura Ring will result in the highest data accuracy, comfort, and overall experience
• CHOOSE A FINGER: The Oura Ring can be worn on any finger of either hand
• OPTIMIZE ACCURACY: For best results, wear it on your index, middle, or ring finger, and be sure to size the exact finger you plan to use
• SECURE, COMFORTABLE FIT: The Oura Ring should sit snugly at the base of your finger without rotating during everyday activities
• TEST FOR 24 HOURS: Wear the ring sizer for at least 24 hours to ensure you've found the best fit