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⌚ Size smart, live smarter — your perfect fit awaits!
The RingConn Gen 2 Air Sizing Kit lets you accurately measure your finger size across 9 options (6 to 14) to ensure a perfect fit for the RingConn Smart Ring. Made from premium aerospace-grade titanium with a scratch-resistant finish, the smart ring offers ultra-thin, lightweight comfort and advanced health tracking without subscription fees. Wear the sizing gauge for 24+ hours to capture natural finger changes and guarantee optimal sensor accuracy and comfort.









| ASIN | B0F43QZV4X |
| Age Range Description | Adult |
| Band Material Type | Titanium |
| Battery Average Life | 10 days |
| Battery Cell Type | Lithium Polymer |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | 1,711 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 273 in Wearable Technology (Electronics & Photo) |
| Box Contents | RingConn Gen 2 Air Sizing Kit |
| Brand Name | RingConn |
| Case Material Type | Titanium |
| Closure Type | Magnetic |
| Colour | Ring Sizing Kit |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Android Devices, iOS Devices |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Customer Reviews | 4.6 out of 5 stars 1,488 Reviews |
| 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 |
| Memory storage capacity | 2 MB |
| Metrics Measured | Heart Rate Monitor, Activity Tracker |
| Model Name | RingConn Gen 2 Air Sizing Kit |
| Model Number | RCA-02 |
| Operating System | RingConn App |
| Product Features | Activity Tracker, Custom Activity Tracking, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Shape | Round |
| Special feature | Activity Tracker, Custom Activity Tracking, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Style Name | Minimalist |
| Supported Application | Fitness Tracker, Heart Rate Monitor, Sleep Monitor |
| Target Audience | Unisex Adults |
| Warranty Type | Limited |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |
L**.
A must buy, to get the size for this brand
More expensive than other makes, but it does make a difference, so glad I bought these and didn't go by another make that someone let me borrow I would have been a size to small! I kept it on for the 24 hours, and when the ring came it was just the same
E**E
Accurate Fit, Comfortable All Day Wear Trial, Find Your Perfect Size
Simple, effective, and exactly what you need. It’s a sizing kit so there’s not much to overcomplicate but it does its job perfectly. I wore the sample ring for a full 24 hours, which gave me a really clear sense of the fit and overall comfort throughout the day and night. That trial period made a big difference, and I felt confident choosing my size. The fit ended up being incredibly accurate when I received my actual ring. Overall, the kit delivered exactly what it promised and made the whole process easy and reliable. Definitely a worthwhile step if you want to get the right fit the first time.
R**B
Ringconn Gen 2
The ring that rule them all. No subscription.
W**D
لاخذ مقاس اصبعك
ممتاز للقياس
S**A
Sizing rings/review for ring itself
There are enough sizes to find your perfect size. I have a size 10 on my right pointer finger. UPDATE: I have officially bought it and it came in yesterday! My first impression on it was that it feels like cheap plastic, but when I went and read the materials it’s made out of it made sense in order to keep it lightweight. As I’ve only had it for 24 hrs I can’t give a good review if it’s worth it or not but I will update again later. I order the size 10 as the sizing kit let decide which size would work best, it fits the same if not a little bit bigger than the sizing ring but nothing that I would need to size down. The silver looks great with the rest of my silver/white gold jewelry. The set up was easy and everything within the app started working immediately, I wore it to bed to get my sleep tracking going and it tracked it to the T! The cycle tracker is off but it only asked about my last one and I just had to guess so as I use it more and am able to put accurate data in I’ll be able to know how well it is. I’ll update in a few months. UPDATE ONE YEAR LATER: at of may 11 of 2026 I will have this ring for a year. Overall I love this ring, I have worn it literally everyday for the year. Mine is still working great and tracks everything pretty accurately. I will say that the app doesn’t send you notifications so there was one week that I was too busy to notice that my ring ran dead. I also wish they would update more features that it reads, I would even eventually upgrade to a new ring if they would measure more and keep the app and features free. That is what I love most about this ring, it tracks what I NEED while still being free, I would just love to see a few things tweaked. I ABSOLUTELY LOVE RINGCON THOUGH. like seriously it’s great, just buy it!
M**A
Ok
I decided to not buy the ring since its annoying on the finger but good kit
Trustpilot
5 days ago
2 months ago