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📏 Nail your perfect smart ring fit before you buy—because comfort is the new luxury!
The RingConn Gen 2 Air Sizing Kit offers 9 precise sizes (6 to 14) to ensure a perfect fit for the RingConn Smart Ring. Made from premium plastic, it helps you test comfort and fit over 24 hours, preventing sizing errors unique to sensor-embedded smart rings. Designed exclusively for RingConn’s aerospace-grade titanium smart ring, this kit guarantees optimal comfort, sensor accuracy, and durability, making it an essential step before purchase.









| ASIN | B0F43QZV4X |
| Additional Features | Sizing Kit |
| Age Range Description | Adult |
| Band Material Type | Titanium |
| Battery Average Life | 10 days |
| Battery Cell Type | Lithium Polymer |
| Best Sellers Rank | #416 in Electronics ( See Top 100 in Electronics ) #3 in Smart Rings |
| Brand | RingConn |
| Built-In Media | RingConn Sizing Kit |
| Case Material Type | Plastic |
| Closure Type | No Closure |
| Color | Ring Sizing Kit |
| Communication Feature | Bluetooth |
| Compatible Devices | RingConn Gen 2 Air Smart Ring |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,247) |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Touchscreen |
| Item Weight | 0.1 Kilograms |
| Manufacturer | Shenzhen Ninenovo Technology Limited |
| Memory Storage Capacity | 2 MB |
| Metrics Measured | Heart Rate, Sleep Duration |
| Model Name | RingConn Gen 2 Air Sizing Kit |
| Model Number | RCA-02 |
| Operating System | RingConn Smart Ring |
| Shape | Round |
| Style Name | Minimalist |
| Supported Application | Ftness Tracker |
| Target Audience | Unisex Adults |
| Warranty Description | 1 Year Warranty |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
S**A
Cheap and useful
Cool ring sizer for any reason to have on hand
A**Y
Very affordable kit, cute colors
A very affordable sizing kit to determine your size before buying an actual smart ring. This was a dollar and I feel like it works just as good as a $10 kit from the actual RingConn store.
M**R
Well done!
This is a really cool kit. It definitely will help size me correctly for something that I’ve been wanting for a long time.
A**R
Great but…
The ringconn sizing kit was good, I wore it for about a week. I wore it to the beach, I slept with it on, clean the house and did my normal day-to-day activities without any issues. It give you a wide range of different sizes to best fit which finger you would like to use it on. The only reason I didn’t give it Five stars is that it is slightly smaller than the actual ring, it worked out for me because the size 7 sizing ring was just a half a size too small so the size 7 in the actual ring fits perfectly even with my finger swelling at night. But that could be an issue for others.
R**N
Ring size
Easy to use , application Easy to set up. So far works great no problem
K**Y
Buy sizing kit before buying the ring
Really helpful to find out your size and really know what finger is most comfortable to wear it on.
M**J
Comfortable and Stylish!
I am still contemplating between the RingConn and the Oura. I bought ring fitters for both. The RingConn is not perfectly round but is surprisingly more comfortable than the Oura. The profile is also a little smaller (which adds to the comfort). Bonus: The rings are pretty! The reason for the purchase was to find the perfect size, but these rings are super cute, I love the different colors. I am glad I bought the ring fitters and plan to purchase the RingConn based on the comfort of the rings in the sizing kit.
G**R
Accurate fit
This kit is helpful in selecting correct size, was able to try multiple sizes different fingers to get the most comfortable fit and to see how fit with different temperatures. Would suggest getting the kit.
ا**ا
حلو تساعدكم في اختيار مقاس المناسب انصح قبل تشتري الختام تأخذونه
M**A
I decided to not buy the ring since its annoying on the finger but good kit
A**R
سيئ وصلني مفتوح وناقص اربعه خواتم القياس
K**N
ليست خاتم رينكون فقط المقاسات
Trustpilot
3 days ago
3 weeks ago