The Ultrahuman Ring Sizer made finding my perfect fit quick and easy. The sizing options were accurate, and the material was comfortable to wear for testing. It’s lightweight, simple to use, and ensures that the actual Ultrahuman Ring will fit perfectly when it arrives. Highly recommend getting this before ordering the real thing!

Great product giving you the chance to try both size and material. Definitely recommend for purchase.

If you want to buy the Ultrahuman Ring AIR, the Sizing Kit is not only a formality. This is a critical first step that can make or break your time with this smart ring. There is a good package for the sizing kit, and it comes with a lot of high-quality plastic rings in sizes 5 to 14. The package includes color samples so you can preview how the finished product will look in your selected hue. There is a visible mark on each ring. This degree of care helps you feel better right away and shows that Ultrahuman wants you to find the appropriate fit before you buy. Ultrahuman suggests you should wear the size ring for at least 48 hours, including overnight, to make sure it fits well. This is a good plan. During the day and night, our fingers get bigger and smaller. A ring that fits fine in the morning could be too tight at night. I liked this advise and wore the ring while I did a number of things, like typing, working out, and even sleeping. At this point, I learnt that the fit should be snug enough so the ring doesn't move around, but not so snug that it aches or leaves marks. Ultrahuman told me to place the ring on my index, middle, and ring fingers to see which one felt the best for comfort and data accuracy. The index finger worked best for me. The kit helped me find the correct amount of tightness and looseness. For example, a size 9 fit fine, but a size 10 was a touch loose, but not so loose that it would fall off and I felt the two-night test was an excellent idea. I finally chose the option that was a touch looser for comfort because swelling can make a tight ring uncomfortable over time. The color swatches which comes with this package are great since they show you how each different finish will look on your fingers. I couldn't make up my mind between the classic titanium and bionic gold. It was much easier to choose after seeing both in person. Wearing the sizing ring for a few days turned out to be really useful. You can get a good notion of how the real Ultrahuman Ring AIR would feel because it's light and doesn't get in the way. I barely felt it on my finger, which is a promising sign for long-term use, especially while tracking sleep. Use more than one finger Don't believe that your regular ring finger is the greatest. Using the index and middle fingers could make things more comfortable and accurate. Stick to the rule of two nights. Your fingers change size during the day. You won't know what fits best until you try different things over time. Think about the way you live If you work with your hands or wear rings while working out, a fit that is a little looser would be better. No half sizes Ultrahuman doesn't have half sizes, thus if you're in between sizes, it's normally recommended to go up a size to be more comfortable. The Ultrahuman Ring AIR Sizing Kit is a well-made and important part of the buying process. It takes the guesswork out of size, saves you the inconvenience of returns, and makes sure you get the most accurate information from your smart ring.

If you're considering the Ultrahuman Ring AIR, this is an essential element in the purchase process. As a simple kit, this sizing kit includes a variety of sample ring sizes for you to try on to get a good idea of the fit of the Ring Air. It not only has the correct ring sizes, but it also accounts for the components of the ring as well. So when trying the sample ring sizes on, it is recommended that you wear them for a couple of days to ensure the proper fit and comfort on the chosen finger(s). Note that these rings are made of a plastic material and are not the actual material of the ring. They are simple models to help you get a fit and feel for wearing the actual product. Also included in the sizing kit is a swatch panel of the various colors and finishes of the Ring AIR, which includes all five variations. The swatch notes that the samples are not the actual materials and are made to give you an idea of the finish of the final product, so I assume it's very close to the final ring. Overall, this is a simple and straight-forward kit that is necessary to ensure you pick the right ring size and finish for the Ring AIR. Best of all, you can pass it down to a friend who might be considering purchasing the product to help save the environment.

----- SUMMARY ----- Verdict: The Ultrahuman Ring AIR Sizing Kit is an essential first step for anyone considering purchasing the Ultrahuman Ring AIR. It provides accurate sizing and color selection, ensuring a perfect fit and desired aesthetic. With the added bonus of a $10 gift card, the kit essentially pays for itself, making it a highly recommended and valuable purchase. Pros: - Includes 10 physical ring sizes (5-14) for accurate fitting - Provides true-to-life color swatches of material finishes - Comes with clear sizing instructions and a crucial two-night sizing test recommendation - Features engraved sizes on each plastic ring and minimalist packaging - Includes a free $10 gift card applicable to the Ultrahuman Ring AIR purchase Cons: - None ----- DETAILS ----- Design & Features: The Ultrahuman Ring AIR Sizing Kit truly elevates the user experience from the get-go. This isn't just a collection of rings. It's a thoughtful package designed to ensure a perfect fit and informed color choice. You receive 10 physical ring sizes (5-14), but what truly sets this kit apart is the inclusion of true-to-life color swatches. Unlike simple images, these actual material samples allow you to accurately visualize the matte versus shiny finishes, making the decision process much easier. This attention to detail helped me confidently pick my preferred color. The minimalist box neatly houses each plastic ring, with sizes conveniently engraved on them. While sizing might seem straightforward, the included instructions offer invaluable tips. The most crucial is the two-night sizing test. I'm incredibly glad I followed this advice. My initial midday choice would have been uncomfortably tight overnight, as finger size can fluctuate due to factors like morning swelling or cold temperatures. Being between two sizes, the overnight test clearly showed the larger size was the correct, comfortable fit. Ultimately, getting this sizing kit is a no-brainer thanks to the free $10 gift card that can be applied to your Ultrahuman Ring AIR purchase. It completely eliminates the guesswork, ensuring you get the ideal size and color the first time around. ----- WHAT’S IN THE BOX ----- 1 x Swatch Board 10 x Ring Sizes