Oura Ring 4 Sizing Kit - Size Before You Buy The Oura Ring 4 - Unique Sizing, Not Standard US Ring Sizes - Receive Credit for Purchase

It does exactly what it says it does. The rings are comfortable to wear and made it easy to figure out the right size before ordering the actual Oura Ring. I also appreciated being able to wear it for a full day to see how it felt during normal activities and while sleeping. Simple, accurate, and definitely worth using to avoid sizing issues

This was absolutely perfect to help me determine my ring size before buying the oura ring. The fit of the tester band was the exact same size as the oura ring. I loved that I was able to wear it for a day and try it out before buying the actual ring. I found this kit very helpful in finding the most comfortable size

This sizing kit is hands down the best thing to purchase before ordering an Oura Ring. The sizing runs differently than regular jewelry, so trying the sample rings first made a huge difference in choosing the perfect fit. I loved being able to wear a size for a full day to see how it felt during normal activities, sleeping, and slight finger swelling. It gave me confidence that I was ordering the correct size and avoided the hassle of returns or exchanges. If you’re even slightly unsure about sizing, get this first. It’s a small step that saves time, stress, and money in the long run. Highly recommend! ⭐⭐⭐⭐⭐

If you’re planning to buy the Oura Ring 4, this sizing kit is almost essential. Here’s my straight-talk review: What I liked: The sizing kit gives you multiple trial rings (sizes 4-15) to test your finger and fit. Best Buy +2 Android Authority +2 It helps you understand that Oura’s ring sizing doesn't match standard ring sizes — many users found they needed a different size than their usual jewelry ring. The fit matters a lot: the company says a proper fit leads to better comfort and data accuracy. You typically receive a credit toward your actual ring purchase, so the sizing kit effectively reduces risk. One small caveat: The sizing rings are made of plastic and feel different than the actual titanium ring. Some people notice differences in how the plastic kit fits versus the final product. You’ll need to wear the sizing ring for at least 24 hours (and ideally through normal daily activities) to check comfort, swelling, finger variation. Bottom line: If you’re buying the Oura Ring 4, get the sizing kit first. It takes away a lot of guesswork and prevents the hassle of ordering a ring that’s too loose or too tight. Measure your finger, test it over a day or two, pick the best fit — then buy the actual ring. This way your investment pays off and you get the full benefit of the ring.

The Oura ring is an Interesting tool for helping monitor your sleeping and movement throughout the day. Sizing requires buying these sizer rings which I did and the size 11 fit my two ring ringers. The 12 fit my index and middle fingers. I went with the 11. But the left was called little bit loose, not quite snug enough and occasionally does not sense pulse. Othe right ring finger is bigger as it is my dominant hand and works well there. But it is critical that it is a firm snug fit and should resist you well you try to spin it on your finger. But not so tight that you can not get it off or when it gets fatter from humidity or exercise. So it is hard to fit. Get these to test with. And wear them for 24 hours or more before deciding and chose a ring size that may fit multiple fingers snugly so you may be able to find one that works in different environments for you.

Exactly what I needed! Got the sizing kit on here instead of the website! I was definitely in between sizes and feel more comfortable getting this kit! Also tried my friend’s oura ring and it was pretty accurate! This kit does NOT give a credit like it states! Can’t wait to order!

The wife asked for this for Xmas. She wanted it bigger to fit on her thumb. The sizing box was great too she was able to pick the exact size she wanted and then no exchanges and wasting time and effort! She tells me everyday what the ring tells her and it’s starting to gather enough info to help her make corrections or keep doing what she’s doing depending. It’s a little pricey when you see some others at less than $100 but I didn’t dare risk being cheap and than it doesn’t work for her. So, overall she’s happy you get 5 stars!!

Purchased the oura ring after sizing it with this tool. Works perfectly. I am thankful to Amex for their Oura ring promotion, and I am super happy to have invested in the equipment.

後で判明したがアマゾンとその他で1000円近く値段が違う。類似の商品にも出て来なかった。 ２４時間装着とあったので着けて寝たら、かぶれでしまった。本商品とは素材が違うが、高いので怖くて買えない

Great sizing tool. However, Amazon SG doesnt allow the actual Oura Ring to be delivered. The status has been “Ordered Received…”

Satisfecha con el producto

Ring size kit was perfect for figuring out my Oura ring size.

Perfect service