---
product_id: 724640168
title: "Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14"
brand: "ringconn"
price: "£2.61"
currency: GBP
in_stock: true
reviews_count: 13
category: "Ring Conn"
url: https://www.desertcart.co.uk/products/724640168-gen-2-air-sizing-kit-size-first-before-you-buy
store_origin: GB
region: United Kingdom
---

# 24+ hour fit test recommended 9 precise sizes (6-14) Aerospace-grade titanium build Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14

**Brand:** ringconn
**Price:** £2.61
**Availability:** ✅ In Stock

## Summary

> 📏 Nail your perfect smart ring fit before you buy—because comfort is the new luxury!

## Quick Answers

- **What is this?** Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 by ringconn
- **How much does it cost?** £2.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/724640168-gen-2-air-sizing-kit-size-first-before-you-buy)

## Best For

- ringconn enthusiasts

## Why This Product

- Trusted ringconn brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Comfort Meets Accuracy:** Wear the sizing kit snugly for 24+ hours to ensure your ring fits perfectly without slipping.
- • **Perfect Fit, Every Time:** Size your finger with precision before committing to your smart ring purchase.
- • **Tailored for Smart Tech:** Designed exclusively for RingConn Gen 2 Air Smart Ring—no guesswork, no standard sizing errors.
- • **Versatile Finger Choice:** Fits any finger on either hand, with expert tips for optimal sensor accuracy on index, middle, or ring finger.
- • **Durability You Can Trust:** Crafted from premium plastic for the kit and aerospace-grade titanium for the ring—built to last and resist scratches.

## Overview

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.

## Description

Product description Size First Before You Buy Find the Right Fit Use the RingConn Sizing Kit to find your perfect fit before purchasing the RingConn Smart Ring. RingConn Smart Ring differs from standard rings, so find the right fit with the Sizing Kit.

Review: 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.
Review: 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!

## Features

- [Size Before You Buy] Before purchasing the RingConn Smart Ring, we highly recommend acquiring the RingConn Sizing Kit to determine the most comfortable and suitable size for your finger. Please note that the RingConn Sizing Kit is only compatible with the RingConn Smart Ring
- [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 doesn’t 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F43QZV4X |
| Additional Features | Sizing Kit |
| Age Range Description | Adult |
| Band Material Type | Titanium |
| Battery Average Life | 10 days |
| Battery Capacity | 200 Milliamp Hours |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Best Sellers Rank | #520 in Electronics ( See Top 100 in Electronics ) #5 in Smart Rings |
| Brand | RingConn |
| Built-In Media | RingConn Sizing Kit |
| Case Material Type | Plastic |
| Closure Type | No Closure |
| Color | Sizing Kit |
| Communication Feature | Bluetooth |
| Compatible Devices | RingConn Gen 2 Air Smart Ring |
| Customer Reviews | 4.6 out of 5 stars 1,402 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 |
| 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 |
| Special Feature | Sizing Kit |
| Style Name | Minimalist |
| Supported Application | Ftness Tracker |
| Target Audience | Unisex Adults |
| Unit Count | 1.0 Count |
| Warranty Description | 1 Year Warranty |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery Capacity:** 200 Milliamp Hours
- **Battery Cell Composition:** Lithium Polymer
- **Brand:** RingConn
- **GPS:** No GPS
- **Memory Storage Capacity:** 2 MB
- **Model Name:** RingConn Gen 2 Air Sizing Kit
- **Operating System:** RingConn Smart Ring
- **Shape:** Round
- **Special Feature:** Sizing Kit
- **Wireless Communication Standard:** Bluetooth

## Images

![Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Image 1](https://m.media-amazon.com/images/I/51jD7WyOhwL.jpg)
![Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Image 2](https://m.media-amazon.com/images/I/61VkYwJxMBL.jpg)
![Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Image 3](https://m.media-amazon.com/images/I/61jqGHms3fL.jpg)
![Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Image 4](https://m.media-amazon.com/images/I/719GqhPaarL.jpg)
![Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Image 5](https://m.media-amazon.com/images/I/61CwGQHzYLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Accurate Fit, Comfortable All Day Wear Trial, Find Your Perfect Size
*by E***E on April 10, 2026*

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.

### ⭐⭐⭐⭐⭐ Sizing rings/review for ring itself
*by S***A on May 11, 2025*

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!

### ⭐⭐⭐⭐⭐ Fast shipping
*by E***A on April 28, 2026*

Great for helping decide which size you’re and there cute colors lol

## Frequently Bought Together

- RingConn Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Only Smart Ring
- ULTRAHUMAN Ring AIR-Smart Ring Health Tracker, Size First Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker (Made in India, Swatch Sizing Kit, Swatch Sizing Kit)
- Oura Ring 4 Sizing Kit - Size Before You Buy Oura Ring 4 - Unique Sizing - Receive Credit for Purchase

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---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-17*