Buy Now, Pay Later
As low as
$2
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
Non-returnable item
Learn more
Final sale - No returns
View our full returns policy here.
Availability:
In Stock.
Arrives
Saturday, Sep 5
Style: Sizing Kit
Color: Gifting Sizing kit
Size: Gifting Sizing Kit
Features
- 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.
- WEAR TEST - Your fingers expand and contract based on environmental factors, so we recommend wearing your ring sizer for 24 hours to confirm your best fit. Your ring should not rotate as you go about normal daily tasks.
- SIZES - Oura Ring 4 is available in sizes 415, and we currently do not offer half-sizes. Oura Ring sizes are slightly different from standard ring sizes, so you should not assume your ring size.
- MATERIALS - Our sizing rings are made of plastic, while the Oura Ring 4 is crafted in full titanium for comfort. Due to the plastic mold used to make our ring sizers, they may seem less comfortable than the actual Oura Ring youll end up receiving.
Description
NA
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
Included Components: Oura Ring 4 Sizing Kit
Item dimensions L x W x H: 4.5 x 0.5 x 6.5 inches
GPS Geotagging Functionality: No GPS
Human Interface Input: Unknown
Supported Application: Fitness Tracker
Shape: Round
Style Name: Sizing Kit
Color: Gifting Sizing kit
Display Type: No Display
Item Dimensions: 4.5 x 0.5 x 6.5 inches
Brand: OURA
Target Audience: Unisex Adults
Age Range Description: Adult
Model Number: JZ98-56085
Built-In Media: Oura Ring 4 Sizing Kit
Wearable Computer Type: Smart Ring
Unit Count: 1 Count
Manufacturer: Oura
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Sep 5
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
![Apple Watch Ultra 3 [GPS + Cellular 49mm] Running & Multisport Smartwatch w/Rugged Titanium Case w/Black Ocean Band. Satellite Communications, Advanced Health & Fitness Tracking](https://m.media-amazon.com/images/I/41H6S7vjc+L._AC_US500_.jpg)
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/31caPPnRysL._AC_US500_.jpg)
![Apple Watch SE (2nd Gen) [GPS 40mm] Smartwatch with Starlight Aluminum Case with Starlight Sport Band S/M. Fitness and Sleep Trackers, Crash Detection, Heart Rate Monitor, Retina Display](https://m.media-amazon.com/images/I/316IR-VGDlL._AC_US500_.jpg)
![Apple Watch Series 11 [GPS 42mm] Smartwatch with Jet Black Aluminum Case with Black Sport Band - S/M. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/41s72HIk5TL._AC_US500_.jpg)
![Apple Watch Series 11 [GPS 46mm] Smartwatch with Rose Gold Aluminum Case with Light Blush Sport Band - M/L. Sleep Score, Fitness Tracker, Health Monitoring, Always-On Display, Water Resistant](https://m.media-amazon.com/images/I/315Bqcww4mL._AC_US500_.jpg)
![Samsung Galaxy Watch 7 40mm Bluetooth AI Smartwatch w/Energy Score, Wellness Tips, Heart Rate Tracking, Sleep Monitor, Fitness Tracker, 2024, Cream [US Version, 1Yr Manufacturer Warranty]](https://m.media-amazon.com/images/I/41MoAYLfKhL._AC_US500_.jpg)
Top Amazon Reviews
Style: Sizing Kit
Color: Sizing Kit
Size: Sizing Kit
The ring sizing kit arrived quickly and it was very easy to figure out my ring size. My spouse also, found their ring size and we ordered our Oura rings and love them! Don’t just try to “guess” your ring size! This sizing kit is a must to be sure the ring fits well.
Reviewed in the United States on June 29, 2026 by Isaías y Gaby
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
Style: Sizing Kit
Color: Sizing Kit
Size: Sizing Kit
Was exactly what I needed to identify which size oura ring I would need.
Reviewed in the United States on August 1, 2026 by Kadie Asbury
Style: Sizing Kit
Color: Sizing Kit
Size: Sizing Kit
This sizing kit took away all the guess work on which size to buy. Very convenient.
Reviewed in the United States on July 13, 2026 by Amazon Customer
Style: Sizing Kit
Color: Sizing Kit
Size: Sizing Kit
Very nice kit, but please note 2 important points: 1) the kit is NOT RETURNABLE and 2) it cannot be used for sizing Oura Ring 5. Otherwise, it is well made and useful. I incorrectly thought I could use this for the Ring 5 when it came out. My mistake, but it wasn’t clear in the product description.
Reviewed in the United States on July 15, 2026 by S Larsen
Style: Sizing Kit
Color: Gifting Sizing kit
Size: Gifting Sizing Kit
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
Style: Sizing Kit
Color: Sizing Kit
Size: Sizing Kit
The Oura Ring size kit is super helpful and definitely worth getting before buying the actual ring. It made it really easy to find the perfect fit, especially since the sizing is different from regular rings. I liked that I could try on different sizes throughout the day to see what felt best, since finger size can change. It took the guesswork out of ordering and gave me confidence that I was choosing the right size. Simple, accurate, and exactly what it is meant to do. Highly recommend!
...
show more
Reviewed in the United States on May 3, 2026 by Alvaro
Style: Sizing Kit
Color: Sizing Kit
Size: Sizing Kit
Came with all the different sizes you could need, was able to successfully choose my correct size the first time by wearing a couple days before buying my ring! Don’t skip this step I almost did and would’ve gotten my ring size wrong!
Reviewed in the United States on June 30, 2026 by Senny0113