--- 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: "€ 5.33" currency: EUR in_stock: true reviews_count: 12 category: "Ring Conn" url: https://www.desertcart.pt/products/724640168-gen-2-air-sizing-kit-size-first-before-you-buy store_origin: PT region: Portugal --- # 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:** € 5.33 **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?** € 5.33 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/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 Buy RingConn Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14: Rings - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Cheap and useful - Cool ring sizer for any reason to have on hand Review: 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. ## 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 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 | ## Product Details - **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 - **Style:** Minimalist - **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) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Cheap and useful *by S***A on March 27, 2026* Cool ring sizer for any reason to have on hand ### ⭐⭐⭐⭐⭐ Very affordable kit, cute colors *by A***Y on February 18, 2026* 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. ### ⭐⭐⭐⭐⭐ Well done! *by M***R on March 20, 2026* This is a really cool kit. It definitely will help size me correctly for something that I’ve been wanting for a long time. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pt/products/724640168-gen-2-air-sizing-kit-size-first-before-you-buy](https://www.desertcart.pt/products/724640168-gen-2-air-sizing-kit-size-first-before-you-buy) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-04-23*