RingConn Gen 2 Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Find The Perfect Ring Size Smart Ring Size
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Availability:
Only 2 left in stock, order soon!
Arrives
Sunday, Aug 2
Color: White
Size: 6-14
Features
- [Not Standard Sizing] RingConn Smart Ring differs from standard rings as it contains sensors on the inside. Therefore, we recommend using the RingConn Sizing Kit to determine the best fit. The RingConn Smart Ring is available in sizes 6 to 14, accommodating various finger sizes
- [How to Measure & Fit Check] Wear the sizing gauge snugly around the base of your finger, ensuring it doesnt rotate freely. We recommend wearing it for over 24 hours to determine your most accurate fit. For optimal data and comfort, the RingConn Smart Ring should fit snugly against your skin without rotating. When testing for the best size, make sure the sizing gauge remains tight around the base of your finger
- [Choose a Finger] The RingConn Smart Ring can be worn on any finger and on either hand. For optimal accuracy and comfort, we recommend wearing the RingConn Smart Ring on your index, middle, or ring finger. Be sure to size the exact finger on which you plan to wear your RingConn Smart Ring for the best fit
- [Manufacturing Quality] RingConn Sizing Kit is made from premium-grade plastic, while the RingConn Smart Ring is crafted from aerospace-grade titanium, coated with a scratch-resistant layer for outstanding corrosion resistance and durability
Operating System: RingConn Smart Ring
Special Feature: Activity Tracker, Heart Rate Monitor
Connectivity Technology: Bluetooth
Wireless Communication Standard: Bluetooth
GPS: No GPS
Shape: Round
Brand: RingConn
Model Name: RingConn Gen 2 Sizing Kit
Style: Minimalist
Color: White
Operating System: RingConn Smart Ring
Additional Features: Activity Tracker, Heart Rate Monitor
GPS Geotagging Functionality: No GPS
Case Material Type: Plastic
Water Resistance Level: Not Water Resistant
Supported Application: Fitness Tracker, Multisport Tracker
Metrics Measured: Heart Rate
Shape: Round
Style Name: Minimalist
Color: White
Connectivity Technology: Bluetooth
Wireless Compability: Bluetooth
Wireless Provider: Unlocked
Cellular Technology: 4G
Communication Feature: Bluetooth
Item Dimensions: 9.52 x 4.17 x 1.02 inches
Brand: RingConn
Model Name: RingConn Gen 2 Sizing Kit
Target Audience: Unisex Adults
Age Range Description: Adult
Model Number: SKR-02
Built-In Media: Instruction Manual, RingConn Sizing Kit
Wearable Computer Type: Smart Ring
UPC: 810180160926
Manufacturer: Guangdong Jiu Zhi Technology Co., Ltd.
Unit Count: 1.0 Count
Compatible Devices: RingConn Gen 2 Smart Ring
Compatible Phone Models: All Bluetooth-enabled smartphones
Waterproof Rating: IP68
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Aug 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Royal Gold
Size: 8
Everything from its pretty aesthetics to its battery life to its functionality & accuracy is PHENOMENAL! It’s so slim & sleek (noticeably less bulky compared to the Oura Ring!) And it blends in with my other yellow gold jewelry! In over 6 mths the yellow gold color hasn’t tarnished or scratched off (like customer reviews say the oura ring does!) It truly IS waterproof! I never take it off when washing my hands or washing dishes & it still works great! I’m so impressed with how accurately it detects my sleep patterns, & it knows if I fell back asleep or took a nap! It also has everything I need for tracking my cycle (you can input notes & symptoms etc). I really purchased this ring because I wanted the BBT feature to track my ovulation, but it only reads your SKIN temp so it’s not as accurate as I’d hoped… Helpful “Find My” Feature: I misplaced my ring in the house the other day so I used the app to find it by sounding a beeping alert & lighting up/glowing blue! And the map on the app accurately showed exactly where in the house my ring was! It is so precise! The battery life is VERY LONG (8+ days!), and the charging time is SUPER QUICK! (like under 45 min!) And you don’t need to pay extra $ for the APP (unlike other competitors!) which is a big plus! Overall I am SO impressed with this fitness ring and I highly recommend! UPDATE: My mother in law wanted the silver GEN 2 ‘AIR’ for her birthday & she loves it so far! (see the pic of it on her pointer finger. It looks great on the same hand as her white gold wedding band!)
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Reviewed in the United States on July 11, 2026 by Homes With Christina
Color: Future Silver
Size: 12
My sense is that with RingCon versus the alternative that requires paying a monthly fee for service, is that RingCon is more than good enough to avoid paying a monthly fee. That said with all of the ring based solutions they are best used for everything except exercise. For that you really want something that fits as a band on your wrist to obtain accurate exercise data. But if you are looking for sleep data then RingCon certainly works very good for this purpose. Monitoring through the day also is good though if you are constantly having to remove the ring because of something you are doing with your hands, perhaps this might not be the best solution. One fear based upon reading on the Internet is battery longevity. The Internet suggests that the ring's battery will loose the ability to hold a charge in a year's time. Likely this could be because of the very small battery embedded in the ring is worked hard and over a year time gives up. The battery is not replaceable given it is encased in epoxy that seals the ring such that you can wash with the ring on. Apparently there is a trade in option and I believe the cost is $100. Which suggests that the long term cost of using the ring is not a usage fee, but $10/month given the battery wears out. Likely the competition isn't saying this such that their cost of operation is their monthly fee plus whatever it costs to replace their ring in a year or so... Would I buy this again? I want to say no. I found that after a month I learned all I needed from the data and the data wasn't changing. In the end it cost me the price of the ring to learn to solve why I wasn't getting a good night's sleep. Though it could be said that the ring's cost was cheap if that is the case.
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Reviewed in the United States on April 12, 2026 by Wingo
Color: Royal Gold
Size: 9
I’ve been very impressed with my Gold RingConn Gen 2. The battery life is fantastic, it’s lightweight and comfortable enough to wear all day and night, and the health tracking features are very detailed. I love being able to track my sleep, activity, and overall wellness without having to wear a bulky smartwatch. The app is easy to use, and the fact that there are no monthly subscription fees is a huge bonus. Definitely worth the purchase if you’re looking for a reliable smart ring!
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Reviewed in the United States on June 21, 2026 by Nicole Lawson
Color: Future Silver
Size: 8
Edit: Beware- Do Not Waste your Money! I ended up liking this device more than I first suspected. I got used to using the rings and found the sleep and other data easy to understand and correlate. I had decided to edit my review and give it 5 stars, despite the difficulties with the ring not accommodating my wheelchair use. That is, until yesterday. For some reason, the developers released an update that removed everything I loved about the device and replaced it with nothing useful. You can no longer tell when you were asleep or awake; there are no sleep-stage data graphs, and the graphic representation of movement disappeared as well. The smart ring became stupid with the speed of an update. I've sent feedback to the developer, but I don't expect a reasonable reply. I don't know why they removed all functionality from what was an excellent smart ring with easy-to-understand graphs and no subscription fees. As far as I can tell, they haven't added a subscription fee yet, but they've trashed the usefulness of a good device and replaced it with nothing. I wouldn't recommend this smart ring to anyone as it is currently non-functional. Hopefully, enough people will provide feedback, and the developers will consider returning the ring’s original functions and graphs. Pros I like the fit, color, and look of this smart ring. I did order the sizing kit. I suggest that anyone contemplating purchasing this ring try on the different sizes. I would have ordered the wrong size had I not tried the sizing kit first. It's more comfortable than I had expected. I am not used to wearing rings, and I expected it to be bulky and annoying, but a few hours after putting it on, I forgot it was there. I really like that there’s no subscription. The ring does an adequate job of monitoring sleep, heart rate, O2, and most other measurements. The battery life appears to be as advertised, which is a plus. I've found that most electronic devices advertise longer battery life than my experience shows, so it's refreshing to see that the developers of this device were honest in their advertising. I appreciate this, as I rarely encounter it in practice. Cons However, it has difficulty deciding how to categorize exercise. I am disabled and wheelchair bound. Apparently, there is no way to inform the program of this fact, which has it misunderstand my activity level. I would like to see an option added to the programming to accommodate people with physical disabilities, including those who use mobility devices such as canes, walkers, and wheelchairs. The most annoying thing about the app, however, is that the date is off by 1 day. I want a way to manually set the date, since it doesn't automatically adjust to the correct date. Another thing that slightly bothers me is that the sleep reports aren't as detailed as those from an Apple Watch or a Fitbit. I assume that’s because there's no subscription, but I could be wrong. Overall, there would need to be significant changes to earn more stars in my review. I haven't tried other smart rings, except for an inexpensive one I purchased some time ago that had a very short battery life and wasn't comparable to today’s smart rings. If the developers fixed the few issues I had with this ring, I would recommend it without reservation. But since I haven't tested it against the competition, I can say it's worth looking into for now. The time between charges is impressive, and it does have the benefit of no subscription fee. These two things alone make it worth looking into.
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Reviewed in the United States on December 31, 2025 by Banjo Lee
Color: Matte Black
Size: 9
I was on the fence about this, but I had FSA money to burn. For the price point and based on the reviews, I went ahead and got it. Pros: -The ring sizing kit was great. True to size, although not entirely true to feel. -The ring holds up incredibly well. It is self healing somehow. It will be entirely scratched up, and then I wash my hands and it looks good as new. I am very hard on jewelry, so that's a major win for me. -It does just fine in the water. Showers, hand washing, swimming, all good. -Holds up well around toddlers. Seriously, I'm hard on jewelry! -It seems decently accurate in terms of activity. -For ladies, the period tracker is spot on! -The sleep apnea tracker is a cool feature that other rings didn't offer. -The app is free!!! Huge draw for me and one of the main reasons I went with RingConn. -The visuals in the app are great and I love the ways that you can dig into the data. I'm not a huge exercise tracker, so for me, the data is just enough. -I love that it's a ring and not a watch. I wanted a wearable tracker, but I'm not a watch person and I don't want to get text messages on my wrist all day. This was the perfect wearable biometric data collector for me. -The charging case works well, the ring charges quickly, and I've only had to charge the case once for two months of wear. Cons: -The green lights on the inside are SO BRIGHT! It's super annoying at night. I end up sleeping with my ring hand under the pillow or covered by blankets so that it doesn't bother us in bed. -The ring is on the heavier side. I have Raynaud's, so my hands get cold and lose circulation quickly. The ring easily slips off at that point due to the weight. Luckily for me, I wear it on my left index, and my right index is a little bigger, so I can just swap it over. If you don't have circulation issues, you will probably be just fine. -I do notice it throughout the day. I think that's because it's a little heavier? I don't notice my wedding band at all but I am aware of this ring. It's not enough to bother me, it just surprises me that after a few months of wearing it, I'm still aware that it's there. -The stress tracker seems off. On days when I am super stressed, it will note that I am normal. When I'm actually relaxed and having fun, it will note a higher than average stress level. -The app will only sync when you open it. If you forget to log in, it won't sync. -I would love notifications for low battery. I didn't realize it was dead because I don't check the app daily, and I missed data collection on a day when I really wanted it. My bad, but it would be really helpful to get a notification when the battery is at 10% and needs charging. Overall, I'm glad I bought it and I like looking at the data. It does help me think about being more active. It's not life changing by any means, but I'm not hugely into exercise or tracking every minute of my day. For general trends, I do believe it's helpful. I think there is room for improvement and some other features I would like to see, but for a free app and the price point of the ring, I'm really happy with what I got.
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Reviewed in the United States on August 19, 2025 by Lady Ham
Color: Future Silver
Size: 13
I switched from a Whoop, in part because it still wasn't totally comfortable sleeping with it on, and because the annual subscription was so expensive... I was originally waiting for the Ringconn Gen 3 to come out, but then I lost my Whoop charger on a plane, so I ended up grabbing the Gen 2... So happy I did! I may upgrade later, but honestly, the Ringconn Gen 2 is ticking all my boxes so far. It's super comfortable to wear, I normally wear it on my middle finger of my right hand (I'm left handed) but it also fits perfectly on my index finger, so I can switch it over if I get that soft soggy white ring rash, and just wear it for a few days on the other finger. The battery life is great, I just got into a routine of charging it on a Sunday afternoon while I'm chilling, and it only takes an hour or so to fully charge. It still has a few days charge left if I'm busy and don't get to do it on a Sunday, but I like the routine. I wear an Apple Watch Ultra for most of my fitness tracking, but the Rigconn actually picks up those short duration activities that the Apple Watch doesn't... spend 20-30 mins mixing and laying concrete or doing yard work, and Ringconn picks it up, while the Apple Watch typically won't. I also like that it's measuring the morning light exposure during the first hour after wake up... this one surprised me, but it's actually using it's sensors to detect the intensity and color of the light after you wake up... getting natural sunlight after you wake up helps depress melatonin production and improves wakefulness... it gives you a running measure of your wake up light exposure and differentiates between natural and artificial light! The app seems to be constantly improving. This was the one perceived weakness with Ringconn, but I can honestly say that I have seen clear signs that they are actively developing the app in the right direction, and also that they have been extremely responsive to user feedback... the responses to questions and feedback have been way more than canned or AI generated replies, they truly seem to welcome and respond to feedback. I love the no subscription model, and that they openly share data with Apple Health so it drives other apps as well if I want more specialized focus, but honestly, I think they are quietly building out their app in all the right areas, and I'm loving the platform. I have friends with other devices, and the Ringconn seems generally more compact and wearable than most I've seen. I'm so glad I switched, and I won't feel bad if I invest later in the Gen 3, but I don't feel like I'm missing anything now, so it will be because it offers something else I want, not because it fixes a gap in the current iteration!
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Reviewed in the United States on June 3, 2026 by Tim S
Color: Future Silver
Size: 12
I like the RingConn 2 a lot! After 6 months still happy! I selected RingConn 2 mainly because of the Sleep Apnea data. ...But I weighed a lot of factors including price and reviews. Also, my Cardiac implant (loop recorder) stopped working, so this was a way to replace some of that data. PHONE APP - The phone app is pretty good, somewhat intuitive, but I liked the pre-May 2026 app version better. CHARGING - The charger module has a battery inside, so you put it inside to charge, slide it in you pocket and continue to count your steps. - It can go well over a week without needing a charge (11 -14 days). - Sleep Apnea mode reduces this time, whereas it is doing more continuous monitoring of vitals. FIT It fit me perfect (I used the ring-sizer for the other 2 major brands in big-box stores to get my size) SERVICE - At about 5 months, my ring no longer charged. - RingConn Support gave me some trouble shooting tips. - Then replaced it with no hassle, they even let me change the color to gold.
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Reviewed in the United States on June 27, 2026 by Sheldon Makusec
Color: Matte Black
Size: 12
I've been extremely impressed with the RingConn Gen 2. It's lightweight, comfortable enough to wear all day and night, and provides an incredible amount of health information in such a small device. The sleep tracking, heart rate monitoring, stress insights, and battery life have all exceeded my expectations. One of the biggest advantages is that there are no ongoing app subscription fees. It's refreshing to buy a smart device and have full access to the features without paying a monthly charge. The battery lasts much longer than most wearable devices I've used, and the companion app is easy to navigate and provides clear, useful data. If you're looking for a discreet, comfortable, and feature-packed smart ring with outstanding battery life, this is an easy five-star recommendation.
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Reviewed in the United States on July 13, 2026 by LM