- 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
- 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 you’ll end up receiving.
Organika Vitamin D3 + K2 (MK7) Liquid Drops – 1000 IU D3 & 10 mcg K2 per Drop – High Potency Formula to Support Strong Bones, Teeth & Immune Health –600 day Supply- 30 ml
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Oura Ring 4 Sizing Kit – Size Before You Buy Oura Ring 4 – Unique Sizing – Receive Credit for Purchase (FR/EN)
Rated 4.1 out of 5 based on 1 customer rating
(11 customer reviews)
SKU:
F249899E
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Description
Specification
Overview
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
Processor
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
Display
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
RAM
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
Storage
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
Video Card
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
Connectivity
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
Features
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
Battery
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
General
| Brand |
OURA |
|---|---|
| Model |
JZ98-54867 |
| Part Number |
JZ98-54867 |
| Mounting Hardware |
Sizing Kit |
| Number of Items |
1 |
| Batteries included |
No |
| Batteries Required |
No |
| Includes rechargable battery |
No |
| Manufacturer |
Oura |
| Item model number |
JZ98-54867 |
| Product Dimensions |
14 x 14 x 2.5 cm ,0.55 g |
| Date First Available |
May 14 2025 |
Customer Reviews
4.1
Rated 4.1 out of 5
11 reviews
Rated 5 out of 5
0
Rated 4 out of 5
0
Rated 3 out of 5
0
Rated 2 out of 5
0
Rated 1 out of 5
0
11 reviews for Oura Ring 4 Sizing Kit – Size Before You Buy Oura Ring 4 – Unique Sizing – Receive Credit for Purchase (FR/EN)
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Alexei –
The ring works as expected, no flaws, good design. The application provides excellent AI-based analysis that I can rely on because it matches my self-assessment and the results from alternative sensing devices. I am happy to switch finally from the Samsung Watch 6 Classic, which seems to be “abandonware” based on how long it takes to fix the sleep-monitoring issues.
Diana –
Duurde lang voordat het aankwam en en geen 10 euro bon gekregen voor het kopen van de oura ring 4.
Clarence –
I first ordered a size 11 but ended up exchanging it for a size 10, which fits much better. I highly recommend using the sizing kit and wearing a few sizes over a couple of days to find the right fit to ensure an good fit.
The ring itself is sleek and discreet, with a premium finish that looks great whether dressed casually or formally. Sleep tracking has been very accurate, providing detailed insights into rest, readiness, and recovery. Heart rate and activity tracking are also reliable, and the companion app is intuitive and easy to navigate.
Battery life is impressive, lasting close to a week on a single charge, and charging is quick when needed. Overall, the Oura Ring 4 combines health tracking and everyday wearability better than any wrist-based device I’ve tried. Highly recommended for anyone who wants in-depth health insights in a stylish, unobtrusive form.
“carms58” –
This has made a huge difference in motivation and health awareness. I don’t want to wear a fitness watch or bracelet, so this fit the bill!
Marifa Peretiagina –
I ordered the Oura ring after using the official sizing kit. Unfortunately, the actual ring turned out to be noticeably larger than the sample size, and it slipped off my finger. I had to return it. The product itself looks high-quality and functional, but the sizing kit is inaccurate, which is disappointing. I also want to note that the automatic CAD 10 charge was not applied. I hope the manufacturer improves the sizing kit. I plan to order a smaller size because I really liked the device.
Miss Chansigaud –
Najlepszy tracker samopoczucia i dobrostanu
TechyGuy71 –
I originally bought the Black size 12 for my right middle finger. But when I lost my wedding ring and needed to replace it I decided to get this brushed silver size 9. You can’t keep two Oura rings active so the 12 went into a drawer (till I can sell it). This 9 has gotten a bit scratched. Take care with things like switching watch bands on an Apple Ultra watch. The titanium easily scratches this brushed silver. Then when I lightly scratched the front of the ring (daily use) I was very upset. Strangely, after another week of wearing the ring, the scratch appears to be gone. The ones done on the back from the titanium watch are still there but a simple surface scratch on the front side seems to have buffed away from regular wearing. It does shimmer in the right light which is truly beautiful and I’m glad I paid the extra for the brushed silver design. As for the software well that is why I’m with Oura. I’m glad to pay an annual membership if it means they’ll stick around and I’ll keep getting updates without being asked to micro-pay for any feature. It accurately detects behaviour and when it asks me to fill in details it almost always guesses right (knowing yardwork when I mow the lawn vs being on the treadmill). I’m a very happy customer.
Clarence –
So far so good! It does scratch pretty easily, which I knew about before I bought it so it’s not a surprise to me but it may bug other people. Personally the matte black colour is great because even though there are some scratches, I don’t think it’s obvious to anyone but me. The battery life is great (basically a whole week) and only takes about 30 ish minutes to charge back up. I mostly love the app though. I like the language it uses and it’s really been helpful to see my sleeping patterns and how my choices throughout the day affect it. I’ve only had it for a month but I’m a big fan.
I like how it has less of a bulky profile than the gen 3. It’s still bulkier than regular rings so I’ve had to adjust to that overall. I like that it works on my pointer and middle fingers so I can switch it up if I need to. I didn’t buy the kit, just used the sizer rings in person at a retail store. It says you should wear the sizer overnight for best fit but I felt pretty confident in my size and it’s worked out really well for me.
Eduardo neira –
The media could not be loaded.
I hesitated for a while before investing in this gadget. And I love my Gadgets! but after doing some homework on the competition, I decided to jump for it.
First, the fit and metal colour are great, I couldn’t be happier, the quality and durability is insane, i do everything with it, I rarely take it off.
The connectivity to my Samsung Z Fold6 was flawless, no hiccups, plus, everything you open the app, it updates in no time. so great compatibility.
Now, you need to give it time to gather data about you, of course… it will not happen overnight which is quite right, but the intel you get afterwards is great.
Your body age, sleep quality, energy available, your stress, it is such a great little ring. it is a lot of money for such a small device but the value for money is worth it.
I highly recommend it if you are curious and want to be nudge in the right direction for better health.
Eduardo neira –
Delivery took longer than expected, but i am happy with the ring. It does exactly what they advertise. Its a nice to have.
Samantha Henshaw –