Oura Ring 4 Sizing Kit – Size Before You Buy Oura Ring 4 – Unique Sizing – Receive Credit for Purchase
$10.00
Price: $9.99 - $10.00
(as of Jul 26, 2025 01:55:00 UTC – Details)
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, a 10 credit will automatically be applied to your Oura Ring 4 at checkout. A properly fitting Oura Ring 4 will result in the highest possible data accuracy, comfort, and overall experience. Oura Ring 4 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 4 works on all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing your Oura Ring 4 on your index, middle, or ring finger.
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
SIZE BEFORE YOU BUY – Oura Ring 4 sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit. For additional details, see “From the brand” section below
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. Oura Ring 4 is available in sizes 4-15. There are no half sizes
COMFORT AND ACCURACY – A properly fitting Oura Ring will result in the highest data accuracy, comfort, and overall experience
CHOOSE A FINGER – Oura Ring 4 works on all fingers and can be worn on either hand. For optimal accuracy, we recommend wearing your Oura Ring 4 on your index, middle, or ring finger. Size the exact finger you plan to wear your Oura Ring 4 on
HOW IT SHOULD FIT – Oura Ring 4 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
Customers say
Customers appreciate the ring’s sleep tracking capabilities, providing great insight into sleep and activity levels, and find the detailed app information extremely useful. The ring receives positive feedback for its appearance, with customers noting its stealth color and beautifully flashy interface. However, customers disagree on the sizing accuracy, with some finding it perfect for the index finger while others say the sizes don’t match standard ring sizing. Moreover, the functionality, accuracy, and battery life receive mixed reviews, with some saying it works exactly as advertised while others report it stops working correctly, data isn’t accurate enough, and the battery doesn’t last a week. Additionally, customers express concerns about the value for money, noting the ongoing subscription costs and considering it not worth the price tag.
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