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OURA

Oura Ring 4 Gifting Sizing Kit - Give the Gift of Oura

Based on 4,046 reviews
Condition: New
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$5.99
Save $4.01 was $10.00

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  • – 4-month term
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Oct 30
Order within 22 hours and 17 minutes

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At a glance

Condition
New
Style
Sizing Kit
Color
Gifting Sizing kit
Model
JZ98-56085
Dimensions
4.5 x 0.5 x 6.5 in
GPS
No GPS
Shape
Round
In the box
Oura Ring 4 Sizing Kit

Features 7

  • GIVE THE GIFT OF OURA RING 4 - This gifting kit takes the guesswork out of gifting, allowing the recipient to purchase the correct size and preferred finish of their Oura Ring 4. Gift card sold separately.
  • A FEW EASY STEPS - Purchase the gifting kit and a gift card with your desired value. Your friend or loved one will size themselves, and then purchase their Oura Ring 4 using the gift card.
  • CHOOSE A FINGER - Oura Ring 4 works on all fingers. Make sure to size the finger you plan to wear your Oura Ring on. For optimal performance and accuracy, we recommend wearing your Oura Ring on your index, middle, or ring finger.
  • FIND YOUR FIT - Oura Ring 4 should fit snug around the base of your finger, but not to the point where its uncomfortable. When sizing yourself, the ring must fit over the largest part of your finger, like your knuckle.

Specs 20

GPS No GPS
Shape Round
Brand OURA
Style Sizing Kit
Color Gifting Sizing kit
Target Audience Unisex Adults
Age Range (Description) Adult
Display Type No Display

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 30

This item is non-returnable:

Final sale - No returns

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

Buy the kit. It will give you sizing peace of mind!
Style: Sizing Kit Color: Sizing Kit Size: Sizing Kit
This little sizing kit works great. Was able to get the correct size. I decided to wear the size I wanted from the kit for a few days to make sure it fit well when my hands changed throughout the day. When I finally purchased my Oura ring I had the perfect size. No issues at all.
Reviewed in the United States on July 16, 2026 by Mikayla
Ring sizing comes in handy!
Style: Sizing Kit Color: Gifting Sizing kit Size: Gifting Sizing Kit
Had to buy this so I could get exact size for the Aura ring. But love it for sizing! Worth it
Reviewed in the United States on September 1, 2026 by Dsh
You HAVE TO BUY OURA SIZING KIT
Style: Sizing Kit Color: Sizing Kit Size: Sizing Kit
Review Image by Amazon Customer
So happy I bought the sizing kit YOU NEED IT. Oura does not come in standard sizing. I typically wear a 7.5 US women’s ring size and the Oura size 9 was a perfect fit for my index size 8 was a bit loose on my ring finger. Shocking. So glad i didn’t purchase a 7 or an 8 or it would’ve been way to tight or loose. Your fingers swell in the morning so keep this in mind. ... show more
Reviewed in the United States on June 29, 2026 by Amazon Customer
Glad I got the sizing kit first
Style: Sizing Kit Color: Gifting Sizing kit Size: Gifting Sizing Kit
Review Image by Ashley
I’m glad I bought this sizing kit before purchasing my Oura ring because I would have purchased the wrong size. This is great because not only does it help ensure you get the correct size but it also helped me with knowing how it would fit on my finger before buying it. Looking at pictures it looks a little bulky so the sizing kit gives me an idea of what it would feel like wearing it. The sizing kit came with 12 different sizes so you will be able to try multiple sizes. ... show more
Reviewed in the United States on June 28, 2026 by Ashley
NO REFUND OPTION
Style: Sizing Kit Color: Gifting Sizing kit Size: Gifting Sizing Kit
NO REFUND OPTION: I bought this sizing kit because I thought I was going to purchase an Oura Ring. However, after it arrived, my sister-in-law was visiting and told me she had bought an Oura Ring and did not like it or find it useful. She felt it was a waste of money for her, so I decided not to go forward with buying the ring. I never even opened the package, but then I found out the sizing kit could not be returned. That means the money was basically just thrown away. It was not clear to me when I purchased it that all sales were final. If you are not 100% sure you are going to buy the Oura Ring, I would not recommend buying this sizing kit. ... show more
Reviewed in the United States on July 1, 2026 by LaurieH
Worked Great To Find My Oura Ring Size! Discount Was Automatically Applied To The Ring.
Style: Sizing Kit Color: Sizing Kit Size: Sizing Kit
Review Image by Christine
Review Image by Christine
I was hesitant to buy this because I worried it would be complicated to apply the discount from buying the sizing kit to the ring, but it was completely automatic (I bought both through Amazon so I can't say it is the same anywhere else, but on Amazon it was automatically applied to my checkout)! I didn't have to do anything. The sizing kit works great! It came in a box with several different sizes from very small to very large (size 4 - size 15). The size you are wearing is on each band so you won't forget which size you are wearing. The size number raises up, as part of the same material of the ring, meaning it cannot fade off, and you will always know which size each ring is. I found the most comfortable fit and wore it for a few days to make sure it was snug but not uncomfortable. The ideal fingers for the Oura ring are the pointer, middle, or ring finger. If you are prone to swelling you could size it to your ring or pointer and if you have swelling, move it to your middle finger. It is good to buy the kit to be sure, but I will say that the size I bought is also my ring size. I am still happy I bought the sizing kit and didn't risk having to do a return if it were different (and it can be), and it didn't cost me anything once I bought the ring. If you know you want the Oura ring, don't hesitate to buy the kit, as you will get your money back when you buy the ring, and it will save you the hassle of a return. My daughter ended up taking the smaller rings and decorating them, so we got some use out of the extra rings, as well! ... show more
Reviewed in the United States on March 5, 2025 by Christine
A Must-Have Before Ordering Your Oura Ring
Style: Sizing Kit Color: Sizing Kit Size: Sizing Kit
This sizing kit made choosing the right Oura Ring size easy and stress-free. The sample rings are comfortable to wear and helped me find the perfect fit before placing my order. I highly recommend wearing the test size for at least a full day and overnight since finger size can change throughout the day. It saved me from ordering the wrong size and made the whole process much easier. Definitely worth it if you’re planning to buy an Oura Ring. ... show more
Reviewed in the United States on June 9, 2026 by Antonia
Highly recommend if purchasing an Oura Ring — measure twice, buy once
Style: Sizing Kit Color: Sizing Kit Size: Sizing Kit
If you’re planning to buy the Oura Ring 4, this sizing kit is almost essential. Here’s my straight-talk review: What I liked: The sizing kit gives you multiple trial rings (sizes 4-15) to test your finger and fit. Best Buy +2 Android Authority +2 It helps you understand that Oura’s ring sizing doesn't match standard ring sizes — many users found they needed a different size than their usual jewelry ring. The fit matters a lot: the company says a proper fit leads to better comfort and data accuracy. You typically receive a credit toward your actual ring purchase, so the sizing kit effectively reduces risk. One small caveat: The sizing rings are made of plastic and feel different than the actual titanium ring. Some people notice differences in how the plastic kit fits versus the final product. You’ll need to wear the sizing ring for at least 24 hours (and ideally through normal daily activities) to check comfort, swelling, finger variation. Bottom line: If you’re buying the Oura Ring 4, get the sizing kit first. It takes away a lot of guesswork and prevents the hassle of ordering a ring that’s too loose or too tight. Measure your finger, test it over a day or two, pick the best fit — then buy the actual ring. This way your investment pays off and you get the full benefit of the ring. ... show more
Reviewed in the United States on October 21, 2025 by Mr. Bell
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