> ## Content Index > Fetch the complete content index at: https://www.lordofthesmartrings.com/llms.txt > Use this file to discover other available public pages before exploring further. # Find Your Perfect Fit: A Guide to Choosing the Right Size for Your Smart Ring - URL: https://www.lordofthesmartrings.com/find-your-perfect-fit-a-guide-to-choosing-the-right-size-for-your-smart-ring/ - Published: 2023-03-14T10:01:16.000Z - Updated: 2024-05-09T07:25:26.000Z - Description: I have many questions about sizing kits and choosing the optimal ring size. I will summarize the information in this article. - Author: FITNESATOR - Tags: #Migrated-1714376565823, #Import 2024-04-29 07:43, sizing kit, 💍Ultrahuman AIR & PRO, 💍Circular Smart Rings, 💍 RingConn Smart Ring, 💍Oura Ring Gen 3 & 4 & 5 I have many questions about sizing kits and choosing the optimal ring size. I will summarize the information in this article. I am currently focusing on these smart rings: - 💍 Oura ring Gen 3, - 💍 Circular Ring, - 💍 RingConn Smart Ring, - 💍 Ultrahuman Ring R1. However, it can be said that the sizing process is de facto identical for all of them. ### Basics For all the rings listed above, I went through the process of selecting the appropriate size, so I’d like to summarize some key information/experiences: - It is possible that you are looking forward to your smart ring, but the optimal size of the ring is **absolutely crucial to the overall wearing experience of a smart ring**, don’t underestimate it. - The recommended finger of the hand is usually the **index finger**, followed by the **middle and ring fingers**. Personally, I recommend more of a non-dominant hand, for practical reasons. - All the listed smart ring companies send a sizing kit first, which contains 6–14 test plastic rings. - The ring's sensors should be placed on the underside of the finger, and it is a good idea to calculate this when wearing. The test ring should be worn for at least 24 hours, especially overnight. #### Sizing kit The sizing kit is, as already outlined, the basic equipment for determining the correct size of the final ring. These are usually plastic rings in a paper box. **There are 3 ways to obtain a sizing kit:** - Standard when ordering — the kit is usually free. Please note, I paid VAT for Ultrahuman in EU. - Second hand. Try searching eBay or Facebook. Some sell it for money, which, since it’s included when you order, doesn’t seem quite kosher… - Print at home on a 3D printer if you can, see below. Option #2 and #3 can theoretically speed up the whole process of getting a smart ring a bit, and you can specify the size straight away when ordering, which is normally only entered after receiving the sizing kit. - Oura 3D kit — [https://support.ouraring.com/hc/en-us/articles/360025590653-Tips-for-Determining-Your-Oura-Ring-Size#h\_01G52P80F1A8WKVVSJ7V8C1JV2](https://support.ouraring.com/hc/en-us/articles/360025590653-Tips-for-Determining-Your-Oura-Ring-Size?ref=lordofthesmartrings.com#h%5F01G52P80F1A8WKVVSJ7V8C1JV2) - Circular — [https://www.dropbox.com/sh/a1mscxdry5f6zbl/AAD2qNPribesMqP2vFqs2F9Aa?dl=0](https://www.dropbox.com/sh/a1mscxdry5f6zbl/AAD2qNPribesMqP2vFqs2F9Aa?dl=0&ref=lordofthesmartrings.com) - RingConn — NA - Ultrahuman — [https://www.ultrahuman.com/print-sizing-kit/](https://www.ultrahuman.com/print-sizing-kit/?ref=lordofthesmartrings.com) I recommend getting a sizing kit for a particular ring and not relying on individual brands being compatible with each other. You can find some matches, but rings have different shapes, which is good to take into account. #### Size selection process The process of choosing the right ring is as follows: 1. Select the finger that will be the “home” of the ring. 2. Choose the optimal ring size. If you put your hand in a fist, there should be no gap between the top of the ring and your finger. 3. Wear for a minimum of 24 hours. 4. Now comes the hard part — assessing whether the size is comfortable/suitable. The ring shouldn’t feel tight, but it shouldn’t be too loose either (this runs the risk of not measuring correctly). A good clue may be that it should not spontaneously rotate (too much) during the day. 5. Order the final ring. ![](https://storage.ghost.io/c/01/ca/01ca9f1d-13b0-43d5-a8fe-dac2f7d3dc2f/content/images/2024/04/0-7p1c2rsfbcotwuj1.png) Hand in left fist = no gap. Gap appears only when thumb is pressed against the ring (right) #### Bigger or smaller? Are you stuck between 2 sizes? I have registered a large number of requests and calls for half sizes. So far, no manufacturer has complied. So it’s necessary to make a decision. It’s good to remember that the ring has **sensors in the body that should be in direct contact with the skin** so that they can measure accurately. So the general recommendation would be: smaller. In the same breath, however, I would add that this should not be at the expense of comfort, i.e., the ring should be relatively easy to take off — you can possibly use e.g. soap for a better slip. ### The ring doesn’t fit, what to do? Has your ring arrived and you are not happy with the size? #### Exchange There should be no need for replacement, hence the emphasis above on the process of selecting the correct size. However, I have mapped out for you how individual manufacturers approach the possible replacement. - Oura — size (and colour) exchange is possible within 30 days of delivery. - Circular — exchange is possible, shipping is paid by the customer. - RingConn- exchange is possible, and shipping is paid by the customer. - Ultrahuman — exchange is not possible. ![](https://storage.ghost.io/c/01/ca/01ca9f1d-13b0-43d5-a8fe-dac2f7d3dc2f/content/images/2024/04/1-ko0fk72xclcf0b9lu7qajg.png) #### Experimentally — size adjuster I also came across a rather interesting option — to fill the gap in case of a larger size with a so-called adjuster. This solution may have 2 pitfalls. You must not over glue the sensors and also it is with a question mark whether the ring will fit into the charger with this extender. ![](https://storage.ghost.io/c/01/ca/01ca9f1d-13b0-43d5-a8fe-dac2f7d3dc2f/content/images/2024/04/0-phagcpej3idw72wg.png) I would consider this a very extreme solution, e.g. in cases when you lose weight and therefore your fingers get numb. ### Official instructions I am adding the official sources of instructions, see below. - Oura — [https://ouraring.com/sizing](https://ouraring.com/sizing?ref=fitnesator) - Circular [https://www.circular.xyz/sizing](https://www.circular.xyz/sizing?ref=fitnesator) - RingConn [https://ringconn.com/pages/perfect-ring-size](https://ringconn.com/pages/perfect-ring-size?ref=fitnesator) - Ultrahuman [https://www.ultrahuman.com/ring/faq/](https://www.ultrahuman.com/ring/faq/?ref=fitnesator) So, did you choose (right)? ![](https://storage.ghost.io/c/01/ca/01ca9f1d-13b0-43d5-a8fe-dac2f7d3dc2f/content/images/2024/04/0-2wmvi2poyjq5160n.gif) --- OURA 3–50 EUR DISCOUNT — [https://fitnesator.link/oura](https://fitnesator.link/oura?ref=lordofthesmartrings.com) CIRCULAR RING 8% DISCOUNT — [https://fitnesator.link/circular](https://fitnesator.link/circular?ref=lordofthesmartrings.com) RINGCONN — [https://fitnesator.link/ringconn](https://fitnesator.link/ringconn?ref=lordofthesmartrings.com) ULTRAHUMAN — [https://fitnesator.link/ultrahuman](https://fitnesator.link/ultrahuman?ref=lordofthesmartrings.com)