RingConn Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Find The Perfect Ring Size Smart Ring Size - Only Compatible Smart Ring
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
Only 2 left in stock, order soon!
Arrives
Wednesday, Sep 10
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Color: Sizing Kit
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: Proprietary/Customized
Special Feature: Activity Tracker, Heart Rate Monitor
Connectivity Technology: Bluetooth
Wireless Communication Standard: Bluetooth
Shape: Round
Brand: RingConn
Model Name: RingConn Gen 2 Sizing Kit
Color: Sizing Kit
Age Range (Description): Adult
Compatible Devices: RingConn Gen 2 Smart Ring
Product Dimensions: 9.52 x 4.17 x 1.02 inches
Item Weight: 3.2 ounces
Item model number: SKR-02
Batteries: 1 Nonstandard Battery batteries required.
Date First Available: September 9, 2024
Manufacturer: Guangdong Jiu Zhi Technology Co., Ltd.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 10
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: 7
I did a cross comparison of this ring with other brands and decided to purchase this one because it’s - More affordable - Ring sizing kit is cheap - No monthly fees - Tracks oxygen I am soo happy I chose ringconn. It looks great on my hand, battery lasts forever, charges super quick and accurately tracks so many metrics. It has told me things about my sleep I had never even considered. For example, my skin temperature was dropping at night preventing me from getting the best possible sleep. I wear socks now and get better sleep! It also knows your normal metrics so when something is off, it tells you right away. I don’t have sleep apnea but I had a septoplasty recently so I could not breathe well and it tracked all the times I had stopped breathing at night along with my oxygen levels. I wear it in the shower, pool, washing hands and have never had any issues with getting it wet. I love the way it looks. Some people have mentioned the other brands being too bulky or annoying but I don’t even feel it. I highly recommend this brand over the competition!
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Reviewed in the United States on August 12, 2025 by Teresa P Teresa P
Color: Future Silver
Size: 10
Finally a ring The checks all the boxes. I mainly bought for the sleep apnea algorithm which seems to work pretty good and does not require any additional subscription. All the other data is good, that is, as good as these types of devices get. Even with sleep apnea monitoring running, battery life is about 10 days. It seems to run so long that I absolutely forget when I charged it last. Data collection interval is pretty good, every two or three minutes. Unlike some of the cheaper Chinese rings that only collect data every 30 minutes. I have the shiny silver ring and the finish seems to be very durable. Been wearing it for a month now with no scratches. I have dropped it on the floor from a standing position a few times with no troubles. Bluetooth connection was easy and is very stable. Unlike some other popular ring options, this ring focuses mainly on the data and is not bombarding me with a lot of other stuff that I call " mood ring data", such as when should I be in the light, when should I turn out the lights, and other weird stuff I just don't care about. The user interface on the app is clean and is not trying to sell me a bunch of crap. Another gigantic Plus is the fact that this ring, besides being cheaper and having no subscription fee, also comes with a charging case that has its own battery supply. The charging case uses a standard USB C connection and charger. Recharging is pretty quick, requiring only about 85 minutes to charge the ring when it gets to about the 10% mark. So between the charging case and the fairly rapid recharging of the ring, having to deal with a dead battery is never a concern of mine. Just like some of the competitors, this ring does have temperature and some of the female related functions. This ring looks very much like my wedding band and I wear it in place of my wedding band. So this means I am free to wear one of my many mechanical wrist watches while also keeping track of health related data. I routinely wash my hands with the ring on and occasionally will take a shower with it on. It does not seem to affect it, but if I think of it I do take the ring off if I'm going to keep my hands wet for a long period of time. But to tell you the truth I don't think this really matters, it's just me trying to protect a piece of electronics on my finger. So far this ring checks all the boxes and I have to say it's been some time that I've purchased a product that seemed to deliver everything it said it would. If the battery continues to perform well with age and the outside finish of the ring continues to hold up, then I would say this ring is near perfect.
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Reviewed in the United States on February 11, 2025 by cat man too
Color: Royal Gold
Size: 13
I first tried a cheap smart ring ($60), and while the hardware was somewhat impressive, the app was junk: not specific to the particular ring. This RingConn ring, and app, however, are the real deal! The ring is well made, its inside surface is made so that it tends to stay in place on your finger without rotating around over time. The charge lasts a very long time, and so far after about a month, the ring still works and charges perfectly. The titanium exterior apparently really does resist scratches, because mine still looks new and I wear it 24/7, except for charging. I swim daily, and wear the ring without issues, it really is waterproof. Too bad it does not have a dedicated tracker for swimming (you have to edit that into the app data after the swim session), but I also use it for walking in our neighborhood, and that dedicated function tracks accurately, in tandem with Google Maps, to show the route you walked. Sleep data is fairly accurate, though it finds REM during some of the time I was awake, which is not correct. It also has twice counted time in my recliner watching TV (before going to bed) as if I had gone to bed, but that data can be easily edited the next morning if necessary. Sleep apnea tracking is a nice touch, it says I probably have mild apnea, which is correct (it would be worse if I did not tape my mouth at night!). Vital signs seem to be accurate, it detects periods of exertion when you are working your body hard. The heart rate is correct even when the ring is wet, which was not the case with my previous cheapie. The "stress" measurement must be based on the HRV value, not sure if that is really helpful for me. I purchased a size 13 after trying sizes in the sizing kit--don't skip that step, because this ring has an unusual inner surface and you need to make sure to get a size that works on your fingers. Turns out that 13 is a handy size for me, because I can wear the ring on a choice of 3 different fingers, meaning I can switch hands when I need to. According to the AI in the app, the ring finger doesn't make any difference. Just keep in mind that none of these smart rings, including the Oura, are medical devices--that is, they are not directly measuring most of the information that they display. Instead, these readings are calculated using complex algorithms based on data obtained by the sensors in the ring, so they are really estimates and should be viewed over time, to see trends. Some readings are more accurate than others, like heart rate is more directly measured than REM, for instance. There's certainly room for improvement, but all in all, this is a good product!
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Reviewed in the United States on August 11, 2025 by Jack O Trades