Customer Ratings & Reviews

For anyone considering the purchase of an Oura Ring 4 this is a must have. It takes the guesswork out of the size and is super beneficial if you’re between sizes. The best part is the fit is exactly the same with the comfort fit and rounded edges as the Oura. From all I can tell it’s even the same weight. The recommendation is to wear the ring on your index finger for a few hours or even days to see how it fits during all times of the day. It would be bad to spend all that money to have a ring that doesn’t fit well if your fingers happened to be swollen or even worse if they were cold and you ordered the wrong size ring! One other benefit is if you’re purchasing multiple rings, you only have to purchase one size kit since all sizes are included in the kit. I’m sure sizing is the same between different versions, but I used it specifically for the Oura 4. I’m also not 100% sure how Oura sizes compare to traditional ring sizes so it’s cheap insurance to ensure you get the right size and proper fit.

The Oura sizing kit is an excellent option if you don't have a Best Buy locally, or perhaps it is hard for you to get out. The best part is, the cost of the sizing kit is replaced once you order your actual ring. It is a great experience, comparing the sizing kit to the actual ring that arrived, you are actually getting a feel for what the ring will be like. In other words, don't just size your finger with these, make sure that it is comfortable to wear, as that is what you will be wearing once you are ring arrives, essentially. My 3-year-old very much enjoyed helping me size my ring, as well as playing with them, so get the whole family involved. You can use the kit to size more than one person. The bottom line is, if you are serious about your health, sizing for Oura ring is the first step in using an excellent tool to help monitor and improve your health. No matter what, go to Best Buy and check these rings out, it will get some steps in for you. That is a great start for your health journey.

The Oura Ring Sizing Kit is a must before you order your ring. With 12 plain white plastic rings included, ranging from size 4 all the way to 15, you can be sure that you are ordering the perfect fitting ring before you finalize your size and color choice. The rings all come with their size displayed on the ring itself. As a bonus, they also come attached to an embossed cardboard paper holder that each ring slips onto and stays put when not in use. Another bonus is that Best Buy had the sizing rings all on display at my local store, so if you don’t want to order the kit, or you are close to a local store, you can always check with them to see if they have the kit on display before you make a purchase. Sizing your ring, which Oura rings aren’t typical sizes, is extremely important. Not only for comfort, but also so the ring will be accurate and do its job correctly. The last thing you want is to order the wrong size based on standard ring sizes, and have to deal with a return. If you are going to purchase an Oura Ring, I highly recommend that you use the sizing kit before you do, just to be sure. The only problem I have with the kit is that my kids took their sizes to wear as costume jewelry, and now they are already lost!

The Oura Ring sizing kit is used to accurately measure your fingers for purchase of the Oura Ring. It comes with ring sizes up to size 15 which I was actually surprised they went that high. The sizing rings are made of a very nice plastic material and are fitted well and feel like an actual ring. They sit well on the holders and they are nicely labeled with each size in the middle of each ring. It seems well manufactured and the precision is top notch. It really shows a level of quality of the main product if the sizing kit is this nice. Overall, You will want this kit to make sure you buy the right size Oura Ring the first time, and I do look forward to getting my Oura Ring. The features it has look awesome. I actually gave the rest of the sizing kit to my children and let them draw custom designs on the sizes that fit them so they could have their own custom jewelry. They are getting really creative with it and is a fun way to make use of something that is meant for one time. I would highly recommend

If you are considering getting an Oura ring this sizing kit is a must. This kit will help make sure you order the correct size for your new Oura ring. I'm happy that I received this as I would have just guessed my ring size and probably would have ended up with an incorrect fitment of my new Oura ring. Oura recommends that you wear the ring size for twenty-four hours before making a final selection. I'm glad I did this recommendation as the first ring fit but my fingers were a little swollen and the next day it was sliding off my finger. I dropped down a size for twenty-four hours and found my perfect fit. An Oura ring is a pretty big expense, and I want to make sure it fits properly and is comfortable to wear. This kit makes sure you get exactly what you need and that your new ring will be comfortable to wear. Do not skip out on this step as it is a small price to pay to make sure your new Oura ring is a proper fit. Now that I know my correct size, I'm excited to receive my ring and get started with my Oura experience.

Nicely packaged and a great way to test out your ring size before committing. Ranging from size 4 to 15, they're hard plastic rings the same thickness as the Oura rings. They're smooth and feels about the same as wearing the actual ring, just much lighter. The actual Oura ring is thicker than a typical ring so it's a good idea to test how it feels on your hand. It's recommended to wear it for a couple of days, and I'm glad I did since after owning the last Oura ring, I found out that getting one a size bigger was a better fit for me. My fingers are in between sizes, but it sometimes swell to a tight fit, so I had to pick a finger that I would be wearing the ring on. It does cost $10 but if you bring it back to the store and scan the QR code, you can apply that cost towards the purchase of the ring. While it's pretty much a straightforward trial, for newcomers, they should have included a small tips and guide insert on which finger to wear it on to get the best fit and accurate reading rather than referring people to the website.

This is a quality and easy to use ring sizing kit. You have the option of using the display sizing kit at the store, but it is highly recommended to utilize this kit so you can wear one of the simulated rings a full twenty-four hours to determine the optimize size. It cost ten dollars, but you will receive a ten-dollar gift card upon ordering your ring at the store. The kit comes with twelve different simulated ring sizes, and they are made of sturdy plastic which will accurately model the actual size of the ring. The ring models have small protrusions on the inner side to accurately simulate the sensors in the actual ring against your skin. The simulated ring sizes go from four to fifteen, so there should be a size to fit most everyone. If you have additional family members considering getting an Oura ring, this is a good investment because these can be used over and over for future sizing needs. The ring models fit securely on the ring insert and can be easily stored for future use.

I was pretty excited to get this ring sizing kit. I've been waiting for it for a little while, and when it was finally delivered, for some reason the delivery person put it in the driveway where I could have almost ran it over. So luckily I seen him on my garage camera coming to drop it off. So I take the package in the house, open it up and try out the many rings that came in the package. It was pretty straightforward and not complicated, and after trying to figure out which finger would I like to have my fitness ring on, I decided to pick the ring finger. So I was pretty comfortable with that decision and then I read that the best finger to have the ring on is your index finger. I wasn't too happy because I never even considered that finger, but I definitely wanted to have the best results from The Ring. So I tried on the number 12 ring and it fit really good. So when I tried to take the ring off, I could not get it over my knuckle. I tried everything I can think of and nothing worked. Finally I got some Vaseline and put it around my finger and then it finally came off. So I decided to go with the number 13 which I can get on and off pretty easily. My problem with the number 13 is that it doesn't fit on your fingers snug enough to really get you the best readings. I think going forward for this ring test kit, they should also add a half size, because some people aren't just a one or two they may be one and a half.

⭐️⭐️⭐️⭐️⭐️ Ring sizing kit is a must—don’t skip it The ring sizing kit is absolutely essential. I learned this the hard way. Initially, I went to Best Buy and chose the Samsung ring since I’m an Android and Samsung user. I thought I picked the correct size in the store, but the next morning I woke up with a swollen finger. I ended up returning the ring completely instead of exchanging it. A few weeks later, I realized I still wanted a smart ring, but this time I chose the Oura Ring and started with the sizing kit. I wore the sample ring overnight to make sure the size was truly comfortable. Only after that did I purchase the actual ring—and it fits perfectly. I absolutely love it now, and the sizing kit made all the difference. Don’t skip this step—it’s 100% worth it.

To reliably find the best size for the Oura Ring, Oura has a ring sizing kit available or to try at BestBuy stores (the cost of the sizing kit is reimbursed via a BestBuy gift card). The sizing kit is essentially a pack of plastic, differently sized rings to try on. They recommend trying and leaving one on for 24 hours (at this point you would have to buy a sizing kit) and wearing one that fits snug. In my experience, I did find that the skin on your hand can contract and expand throughout the day and can affect how it feels at different times of the day. After wearing one throughout the day, I was able to find a ring size that fit well throughout the day and was comfortable with. After receiving the Oura 4 and wearing it, I can definitively say that the sizing kit very closely resembles the actual ring. The thickness and the size of it, how it felt on my fingersresemblesd the actual ring. Overall, I did find that the plastic sizing ring was an exact match for actual Oura ring and even felt similar to wearing it.

As the title says, this is really easy to use and a no brainer for purchasing before you get an Oura Ring. This is the first non-toy ring I’ve ever worn in my life, as I’m an unmarried man in my thirties and don’t wear jewelry, thus don’t even know my ring size normally. That said, per Oura, their rings fit slightly different anyway, so please, before you drop hundreds on the ring, pick up the ring sizing kit as well. As pictured, it’s twelve rings, all just made out of some type of tougher, cheap plastic, that Oura encourages (and rewards you) for trying before you buy a normal ring. The ring is comfortable, won’t be an issue for anyone allergic to metals, and is easy to use. I was between an eleven and a twelve, but after wearing each one respectively for twenty four hours, decided to purchase a size eleven and am very glad I did as the twelve would’ve been too large. The cool thing here is that the sizing kit comes with a ten dollar credit towards the purchase of your ring, thus making this a net neutral cost.

The Oura sizing kit is an essential part of making sure you have a great experience with the Oura Ring 4. The kit comes with 12 white, plastic rings ranging for size 4 to size 15. Finding the correct size is very important for making sure the plethora of sensors in the Ring 4 are accurate. Oura recommends that you pick a size that is snug, but comfortable. They also recommend choosing the index, ring, or middle fingers and suggest that you choose the finger that does not have a large knuckle. After fitting a few different sizes, I chose my ring finger and a size that fit over my knuckle, but required a bit of work to remove it. Oura recommends wearing the ring for 24 hours to make sure it is comfortable. I wore the ring for the required time and found it to be very comfortable. I did notice on one occasion that my finger swelled during exorcise and the ring was a challenge to remove. But I would rather that, than have it fall off. I highly recommend the purchase of the Oura sizing kit to make sure you get a great fitting, accurate, Oura Ring 4.

One of the nicer sizing kits that I have gotten for rings. I appreciate that each ring has it’s size on it clearly printed so that if you toss them in a drawer afterwards they are easy to use again in case someone else in the family needs a ring or the next generation comes out. I will say I wish they came in half sizes but I realize that might even harder to produce. My right hand ring finger where I would like to wear it, the 10 is just too small and the 11 feels just a tiny bit big but still works and will enable me to wear the real ring on my index finger of my left hand if my other finger needs a rest. The sizing ring I was able to wear for a couple of days just to see how well it stayed on. The rings pretty high quality for just being for sizing and definitely seem designed to give a decent approximation of the feel of the actual ring. I wouldn’t try to use this to size any other type of smart ring or ring in general out there. I have another smart ring and the sizing is almost the same but different enough to matter, at least on my hands.

The Oura ring sizing kit is pretty straightforward. Try on the different sizes and find which one fits your desired finger the best. There are 12 different ring sizes included starting at size 4 - 15. My ring finger on my left hand is sort of in between 10 - 11. Unfortunately they don't have half sizes as 10.5 would be ideal. I still think 10 is the way to go for myself because 11 was just too large. I would recommend wearing your size for 24-48 hours just to make sure it is comfortable. I do feel like the width of the sizing rings are a little wide. I'm hoping the actual rings aren't so wide as it sort of dug in to my other neighboring fingers and was somewhat uncomfortable. I was able to confirm a size 10 was both comfortable and the correct size after wearing it for over 24 hours. This gives you the ability to test the size in different environments as well. Making sure that your finger isnt going to swell too much in the heat and shrink to much in a cooler environment. The sizing kit is definitely a must if you want to size the Oura ring correctly to fit your finger.

No one wants to be on a hike to Mordor only for their ring to become tricksie and slip off. Thankfully, the folks at Oura have this problem all sorted with their Ring 4 Sizing Kit. Even if you have had your ring fingers sized by a jewler, you should use the Ours sizing kit to make sure your Oura Ring fits nice and snug. For instance, I would have sworn my precious was a size 8, but according to Oura I should be wearing a size 11. *Cough* Gollum */Cough* Please not that rings in Oura sizing kit will not allow the user to disappear and walk among the wraiths. But inside the box you get twelve sizing rings. All white. Those looking to make a fashion statement will be sorely disappointed m. But for those of us who are just using these as sizing rings as Oura intended, they work well. The entire process is simple. So if it is your quest to purchase an Oura smart ring, you best be getting yourself a sizing kit. On a totally unrelated note, anyone ever noticed how difficult it is to write a thousand word summary about a sizing kit?

There’s really not that much to say about the sizing kit except that it is pretty essential to ensure the best fit for a new oura ring. I used one for my generation 3 oura ring and they highly recommended resizing again if you upgrade to the generation 4 oura ring, as the sizing is slightly different and what fit you perfectly before, might not fit as nicely when you upgrade. The kit comes with 12 different sizes, sized four through fifteen. Oura suggests that you pick the finger you want to wear your ring on. While there is no required finger, they suggest wearing on your index finger. Then pick the ring sizer that gives you a comfortable but snug fit. Too tight will hurt your finger and too loose will not get correct/good readings from your ring. Oura also suggests that you wear the sizing ring for a full 24 hours to ensure that it is comfortable and not too tight for a longer period of time. Once you know you have the correct size for the finger you will wear it on, you are ready to officially order your oura ring!

The kit comes with twelve plastic rings sizes 4 through 15 that are easy to remove and use to find your perfect fit. The rings are made out of a smooth hard plastic or composite that do give you a sense of actually having a real ring on your hand. They are an off white so they are obvious when you wear one outside your home. I found two that were close to fitting my fingers and wore them for extended periods to figure out which one would give me the best overall fit especially when I exercise. My fingers tend to swell when I run or go on long walks and I wear half gloves when I cycle so I needed a size that would accommodate all my activities and not just work and sleep. After a day of testing I was able to decide on one ring and I am confident that it is the right size for me. I also verified that even when my fingers were swelled from exercise that I could still get the ring over my knuckles. I highly recommend getting the sizing kit so that you get the most of your ring.

The ring sizing kit comes with 12 different sizes. You can see which size fits you best before you want to purchase an Oura Ring. It’s easy to put on and off. It’s plastic as well so you don’t have to worry about it hurting. The sizes is ranging from size 4 to size 15. After you try the size that you feel most comfortable using which they suggest wearing it for 24 hours or more if you want you then buy the ring in the preferred size that you feel most comfortable wearing. They suggest you to use your index finger but I’ve seen people wear these kind of rings on their middle finger as well. I’ve wore an oura ring before. I wore it on my index finger size 12 and it fit like a glove no issues. The size of the ring mint sizing kit is also for the oura ring. I wouldn’t suggest using it to gauge sizes of other rings because it could very well be different and you shouldn’t waste your time trying these out for a competitive ring. I would just purchase a ring sizing kit from them instead of buying this.

The sizing kit is the first step in ensuring that the ring that you order will be comfortable and optimally functional. Please note that this review is a comparison of the size 11 ring in the Oura Ring 4 sizing kit and the size 11 Oura Ring 4 *Ceramic* that was received. The dimensions were a bit different than the actual Oura Ring 4 Ceramic that I received. However, the inside diameter, the most important for fit and function, was quite accurate. Overall, the outside diameter of the Oura Ring 4 Ceramic that was received was about one millimeter larger than the outside diameter of the size 11 ring in the sizing kit. This small difference, a reflection of the fact that the ceramic ring is about a half millimeter thicker than the sizing ring, was noticeable but did not make a meaningful difference in the comfort for me. You may notice this difference if you intend to wear the Oura Ring 4 Ceramic with another ring on an adjacent finger. The differences noted above are for the ceramic version of the Oura Ring 4 and may not apply to other finishes available for this model.

It was nice to receive a good quality sizing kit before receiving the Oura Fitness Ring itself. The sizing kit consists of a set of twelve plastic rings snapped onto a card. The sizes range from 4 to 15. The sizing rings are the same dimensions as the Ōura Ring 4 itself, so you can be confident that the sizing is actually useful. The dimensions being the same as the Ring 4 is important, as a different sizing ring might be more narrow, leading a person to select a smaller size ring. It might be off-putting that a set of plastic rings sells for $10, but you definitely want the right thing for the sizing, and if you purchase the Ōura Ring 4, you'll get your $10 back in the form of a credit toward the Ring 4. The only downside is that there are no half-sizes in the sizing ring set, and is the only reason I did not give this item a full five stars. I am not inclined to believe that this is a substantial stumbling block, as the final goal is to wear a fitness ring, not a ring with a set stone that needs to be oriented upward. Ultimately, the fitness ring itself will operate better when oriented a certain way, but it will still function should it turn on the finger. See my review on the Ōura Ring 4 itself for more detail.