ŌURA Ring 4 Sizing Kit

• 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 ideal fit before purchasing.

• Receive $15 Coupon Code: With a sizing kit purchase, you will receive a $15 coupon code to use towards your Oura Ring purchase at checkout.

• Not Standard Sizing: Oura Ring 4 sizes are slightly different from standard ring sizes, so it is important to size yourself using our sizing kit and to follow the instructions provided. Oura Ring is available in sizes 4-15. There are no half sizes.

• Comfort & Accuracy: A properly fitting Oura Ring will result in the highest data accuracy, comfort, and overall experience.

• Choose a Finger: 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.

• How It Should Fit: Oura Ring should fit securely and comfortably at the base of your finger. Your ring should not rotate as you go about normal daily tasks. We recommend wearing your ring sizer for at least 24 hours to confirm your best fit.

• Please note: this sizing kit is only compatible with Oura Ring 4.

• Accessories Included: Oura Sizing Rings in sizes 4-15
• Batteries Included: No
• Brand: Oura
• Cellular Generation: Not Cellular
• Compatible with: Android and IOS
• Country of Origin: Estonia
• Music Capability: No

Our plastic sizers are designed to guide your size selection, but they don't reflect the quality, feel, or weight of the final Oura Ring.

• Open Your Sizing Kit: Inside your sizing kit, you'll find multiple plastic ring sizers. Oura uses only whole sizes (no half sizes) and they differ slightly from standard US ring sizes, so it's important to test with our sizers even if you "know" your usual ring size. Avoid sizing your Oura Ring based on other rings, as they likely use different measurements.

• Oura Ring and ring sizers are the same width and circumference. However, the Oura Ring itself weighs slightly more due to material differences.

• Choose Your Finger: You can wear your Oura Ring on any finger, but for the best accuracy, we recommend your index finger. The middle or ring finger also works well, just try to avoid fingers where the knuckle is much wider than the base.

• Try the sizers on both hands and different fingers to find the most comfortable fit. If your finger size ever changes, you can move the ring to another finger or hand as long as it fits snugly.

• Check Ring Orientation: Oura Ring 4 Wear the ring sizer with the size number visible on the top of the hand.

• Test for Comfort: Your Oura Ring should feel snug, not tight. It should stay securely at the base of your finger and come off with a bit of soap and water, but not slide off easily.

• Make a fist: If you see a gap between the ring and the top of your finger, try a smaller size.

• Wear it for at least 24 hours: Fingers change size throughout the day and night. Wear the sizer for a full day, including while you sleep, to make sure it still feels right during different activities.

We recommend choosing the smaller size for a few reasons:

• The sensors inside your Oura Ring work best when they stay in close contact with your skin, especially the underside of your finger
• A snug fit helps keep your data accurate and your experience consistent
• Our plastic sizers can feel a bit "stickier" on your skin, so the actual Oura Ring may fit more smoothly.