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The Oura Ring 4 Sizing Kit is a precision tool designed to help you find the perfect ring size before purchase, ensuring maximum comfort and optimal biometric tracking accuracy. Purchasing the kit grants a £10 credit towards the Oura Ring 4, making sizing risk-free and rewarding. Compatible with all fingers and hands, this kit eliminates guesswork and enhances your wearable experience.











| ASIN | B0DWFSW47F |
| Best Sellers Rank | 171 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1 in Wearable Tech Rings |
| Colour | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (737) |
| Date First Available | 1 Mar. 2025 |
| GPS | No GPS |
| Item Weight | 0.55 g |
| Item model number | JZ98-54867 |
| Other display features | Wireless |
| Product Dimensions | 14 x 14 x 2.5 cm; 0.55 g |
| What’s in the box | Oura Ring 4 Sizing Kit |
C**R
I'ts Always Good To Try Before You Buy!
Nice to use at your leisure and get used to, get the best comfy fit as the ring is wider than a normal ring. Good ring sizer all round, I got it on sale so good value for money.
D**D
Nice kit
Very nice ring sizing kit and the price came off the ring with no problems
S**M
Ring sizer
The ring sizer is good for medium size but you have manly hands you are out of luck it goes to 15
D**R
BEWARE - size for Oura 4 is different to Oura 3
Don’t risk guessing your size - I have used an Oura Ring 3 for over 3 years now and decided to upgrade. My Oura 3 size is a size 13, the Oura Ring 4 sizing kit showed I needed a size 12 for this ring, the fit is different. I purchased the Oura ring 4 in size 12 and it fits perfectly and very comfortable. Also this kit was £5 and gave me a £10 discount on the ring so a no brainer. Don’t risk getting the wrong size, get the kit and wear the plastic blank for 24hours - you can then be confident of the right size.
C**K
Good product.
Good handy kit and gets you money off the ring anyway can't go wrong.
A**N
Perfect Fit, First Time: Oura Ring 4 Sizing Kit Review
The Oura Ring 4 Sizing Kit is an essential first step for anyone considering this innovative smart ring. It takes the guesswork out of finding your perfect fit, ensuring a comfortable and accurate wearing experience. Key Features: Comprehensive Sizing: The kit includes a wide range of sizes to accommodate various finger shapes and sizes. Easy-to-Use: Clear instructions and a simple sizing method make it easy to determine your correct ring size. Unique Sizing Classification: Oura's unique sizing system ensures a precise fit specifically for their smart rings. Purchase Credit: The cost of the sizing kit is credited towards your Oura Ring 4 purchase, making it a worthwhile investment. Well-Packaged: The kit arrived well-packaged and organised, making it easy to find the right size. Overall: The Oura Ring 4 Sizing Kit provides a seamless and accurate way to find your perfect ring size. It's a must-have for anyone considering purchasing an Oura Ring, ensuring a comfortable and enjoyable experience from the start.
T**A
Getting the right sizing for a perfect fit
If you are thinking of purchasing a smart ring, its best to make sure you buy the correct size. This sizing kit is an excellent way of making sure you have chosen the correct size ring for your finger.
P**P
Fantastic for people who have small enough fingers for an Oura ring
I have a few wearables that I've used for sleep monitoring, and thought that the Oura might help as it does extra monitoring that my watch/band doesn't do.... the problem is that for people with larger fingers (like myself) can't wear them Knowing I have larger fingers I went straight to the size 15, the largest size in the package and the largest that Samsung make, but on my right (dominant) hand it barely gets past the 2nd knuckle, and on my left hand it JUST fits below the knuckle so I can "sort of" bend the finger, but it's far from comfortable It's meant to fit on the first 2 fingers, and since there's no way it's fitting on the middle fingers, it stops both fingers from bending with it sitting smack in the middle of the knuckle - the only finger it "sort of" fits on is my left ring finger, but then it's only wearable for about 15-20 minutes before it begins to get uncomfortable and I've got to take it off, so there's no chance of me wearing it overnight, let alone all day Maybe if they make larger rings it will be worth it, but I can't buy one because my fingers are just too chonky for their sizes
E**A
Il kit di misurazione è molto pratico. Misurare il dito prima di acquistare l’anello è semplice e preciso, così ho preso la misura giusta al primo colpo. Consigliato a chi vuole evitare errori e ottenere il massimo dall’Oura Ring
B**1
Parfait pour trouver la bonne taille de bague Un conseil : Garder là au moins une journée
R**T
Zestaw rozmiarów przyszedł terminowo, ale nie została uwzględniona bonifikata, dlatego ocena 1.
D**Y
Perfect way to be sure of getting the correct size for my ring
T**O
Hilfreich für die richtige Größenbestimmung. Kostenlos und gut gemacht. Spart Zeit und Geld.
Trustpilot
1 week ago
3 weeks ago