Customer Ratings & Reviews

Good quality, yet not comfortable on finger to wear constantly. Glad I tried the sizing kit before investing in the actual Oura ring.

exactly what i needed to decide what ring size i wanted

I was able to determine my ring size. Quick shipping also. I wonder if that ring sizing is the same weight as the actual ring.

Definitely need it to know what ring size you need

Very helpful for checking the size of your rings..

Its what it is advertised as. Works like expected.

Used the sizing kit and wore it for 24 hrs as instructed, but the same size Oura Ring 4 doesn't fit my finger. Maybe it's the weight difference? Either way, very disappointed I wasted my time with this.

Sizing kit works as described but it should be free

Even with the gift card for the price, having to buy this was frustrating. Now I have a bunch of useless plastic rings. Maybe they should have done ring size ranges.

These ring sizers are a must if you're in the market for the Oura ring. (especially the white one, gives you a great idea of how that will look.) I thought the sizing kit would just be a bundle of thin rings to help you figure out the sizes of your fingers, but they are substantial. It makes sense they would be thicker to simulate the actual ring. You pick the finger you want the ring on (directions say choose any finger) and wear it for a few days to figure out if it's comfortable enough or if you want to switch fingers. the sizes included range from 4 to 15 to accommodate pretty much anybody. It should be snug on the finger but not tight. I plan on wearing mine on my middle finger and the 11 fit snugly. My finger seems to be in between sizes, and I hope to lose some weight then the ring should be perfect. I didn't want to have the ring be too loose in the future. It's nice you don't need to worry about the cost of this sizing kit as you get a $10 Best Buy gift card to offset that cost. You can also use the sizing kit in the future when in the market for new jewelry.

My order got immediately canceled when I tried to use my promo money for this. I understand that they may not want us to use the promo money in this manner, but even allowing it to happen and then taking away the promo is pretty ridiculous. I was actually considering buying an Oura ring, too.

What can I say? This fitness/health ring sizing kit does what it’s designed for - which is to allow you to sample all the various ring sizes and decide which one fits best for you. The sample rings are comfortable to wear, made of smooth plastic, and most importantly, are true to the actual sizes of real rings. As per the instructions, you are encouraged to wear the ring sizer of your chosen size ring, for at least 24 hours, to make sure it feels right and fits best. I tried my usual ring sizes from the sizing kit on the fingers of both hands that I regularly wear rings on. While my middle or ring fingers would be more ideal, I decided on my pointer finger to wear the fitness/health ring, as I do find that to be just as comfortable. Besides, this allows me to wear whatever other of my favorite rings at the same time. Since the cost of health/fitness wearable ring devices can be rather pricey, it’s vital to get the perfect fit not only for comfort’s sake, but also so that the device can perform with accuracy. I highly, highly recommend!

I received the Oura sizing kit yesterday. The faux rings were sized from 4-15 in whole sizes. I opened the box revealing the 12 faux rings inside and tried them on until one fit just right. The kit provided me an easy opportunity to get an accurate fit for the finger where I plan to wear it. The ring that fit properly was a size seven (7) and I selected that one. I wore my selected size for 24 hours to make sure the fit was comfortable and didn't cause any irritation to the skin. It slipped over my knuckle well and not too tight on the finger. It was so comfortable that I actually forgot I was wearing it until the evening. I am comfortable knowing that I have selected the correct size for me, a size seven (7). The brief instructions for sizing and sending the information to Oura were clear and easy to follow. I'm looking forward to getting the Oura ring in the color Cloud and using it to explore my overall health along with the specifics of what the app will provide from the ring data.

order immediately got canceled, and money/rewards never returned

I ordered march 6th and item should have taken a couple days to arrive. Shipping stated it was delayed with the latest date being March 15th. I still have not received the item.

The sizing kit for Oura Ring Gen 4 does exactly what it needs to do. It allows you to try on different sizes (recommending at least a day of wearing to ensure comfortability) on different fingers to make sure that you buy the right ring size. I was hesitant to get an Oura ring before because it strongly suggested you wear the ring on a pointer finger, but now they tell you that you can wear it on any finger! I thought maybe that size 7 was a little too snug, however after a day of wearing it I found it to be the correct amount of snugness as described on the box with size 8 being just a tad too big. Ideally I would be a 7.5 but since they don’t have half sizes and the ring works best when snug, I went with 7. I was able to figure this all out in the comfort of my own home and over several days of testing which makes this a no-brainer to go with. Especially since the cost of the sizing kit goes towards the price of your ring. Last generation I was at a Best Buy and sized my finger with the aisle display sizer but those felt super grimy so I was much happier to figure out my fit this way. Basically, if you are wanting to get an Oura ring, you need to get the sizing kit. It’s essentially free if you are set on buying the ring. And you should definitely get one! Pros: Counts toward the cost of the ring! Helps reduce time spent buying and returning different sized rings Don’t have to go into a store and use grubby public finger sizers Only 10 bucks Now you can wear it on any finger!

The Oura Fitness Ring Sizing Kit is a clever and practical way to make sure you get the perfect fit before ordering your actual Oura Ring. I really appreciated how simple the concept is—you receive a set of lightweight sample rings in different sizes, and you can wear them around for a day or two to test comfort and fit in real-world conditions. This makes a big difference compared to guessing your size online or relying only on a measurement tool, since the Oura Ring is meant to be worn 24/7 and needs to feel comfortable both day and night. That said, I think the kit could have been even better with more detailed instructions. The process is straightforward enough, but some extra guidance would be helpful, especially for first-time users. For example, I would have liked some insight into which hand and finger tend to work best for accuracy and long-term comfort. Since the Oura Ring collects detailed health and sleep data, it seems like there could have been recommendations based on tracking performance as well as personal comfort. Even with that minor shortcoming, the kit itself does its job very well. It gave me confidence that I ordered the correct size for my actual ring, and I felt assured that it would be comfortable to wear for extended periods. The rings in the kit are lightweight but durable enough to give a realistic feel, and they allow you to try different situations—working at a desk, exercising, or sleeping—to find what feels right. Overall, the Oura Fitness Ring Sizing Kit is an extremely useful tool for ensuring a perfect fit. With just a bit more guidance included, it would be flawless.

The Oura Ring 4 sizing kit really takes the guesswork out of figuring out what size to order. All you really need to do is figure out which finger you want to ear the ring on, and then work you way through the sizes until you find what fits you the best. There are clear instructions on how it should fit. I did a little bit a reading on the Oura website as well and found that they recommend index because of the blood vessles in that finger, but that you CAN wear it on any finger. You MAY get slightly better accuracy if you wear it on the recommended finger. I was glad to have the sizing kit. I was a little surprised at how the thickness impacted my choice of fingers. I didn't find it to be super comfortable to wear on my middle or ring fingers. It was too thick for the space between those two fingers and it felt like it was pressing them appart. If you have thinner fingers than me, you may not have that issue. In any case, working with the sizing kit over guessing is the way to go. I was able to come up with an option that fits well for right now on one finger, but could be switch to other fingers if I gain or lose a little weight. Think about those things ahead of time and you'll be able to use your new ring for a long time without sizing issues. Once you have chosen your size, you scan a QR code or go to the best buy website to place your order. I highly recommend working with the sizing kit before you place your order.

I don't know about you but from my experience with buying rings (especially silicone wedding bands online) I NEVER new what my size would be. Oura just changed that and I commend them for it because sending out sizing kits is an expense that they endure to appropriately size customers and I am glad that they put serious effort into this. These sizing rings are really well made and are quite comfortable to try on. I fit perfectly in a size 8 and actually wore the sizing band around for a few hours just to make sure the comfort was set up for me. It is my understanding that the customer pays an upfront fee for the sizing kit but Oura reimburses you or rolls that money into the ring when you purchase it which is something that I think is very well done and again it's a well made kit and an expense to the company. I think it is imperative for companies to allow you, the customer, a grace period to try on something, especially when size matters. Ring sizing is not something that is necessarily accessible to everyone. Well done Oura.

The ring size kit is very accurate to the actual ring. Upon receiving the kit, I tried out different fingers and different sizes until I found a match. The ring kit has several different sizes to choose from starting at size 6 all the way up to size 15. After deciding on a size that fit on my index finger because not only was that the finger that was suggested, it was the finger that was the most comfortable to wear a ring of that size. I wore the sizing ring for a little over 24 hours and the index finger was the perfect pick. It felt the most comfortable and I easily forgot that the ring was even on my finger. I also tried it on the middle finger (It is awesome that the size 10 ring I chose was able to fit on my index and middle finger), but it just was not comfortable in my opinion. I dont know if it was just because it was squished in between fingers, but it was not as comfortable testing it out on my middle finger as it was on my index finger. I cant boast enough about how close to the ring the sizing and feel of it was. I would def recommend :)