---
product_id: 658529410
title: "ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring"
brand: "ultrahuman"
price: "€ 3.73"
currency: EUR
in_stock: true
reviews_count: 10
category: "Ultrahuman"
url: https://www.desertcart.ie/products/658529410-ultrahuman-ring-air-sizing-kit-choose-from-sizes-5-14
store_origin: IE
region: Ireland
---

# 24+ hour sizing wear test 10 sizes from 5-14 Bluetooth compatible ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring

**Brand:** ultrahuman
**Price:** € 3.73
**Availability:** ✅ In Stock

## Summary

> 📏 Find your perfect fit, wear your future.

## Quick Answers

- **What is this?** ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring by ultrahuman
- **How much does it cost?** € 3.73 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/658529410-ultrahuman-ring-air-sizing-kit-choose-from-sizes-5-14)

## Best For

- ultrahuman enthusiasts

## Why This Product

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

## Key Features

- • **Style Meets Function:** Choose from 6 sleek colors to match your personal brand and elevate your wearable tech game.
- • **Seamless Smart Integration:** Bluetooth-enabled for effortless syncing with your smartphone and tablet—stay connected, stay ahead.
- • **Precision Fit, No Guesswork:** Use the sizing kit for a perfect Ultrahuman Ring AIR fit—wear it 24+ hours to lock in your ideal size.
- • **Premium Space-Grade Durability:** Crafted from titanium and tungsten carbide for a scratch-resistant, ultra-durable smart ring experience.
- • **Tailored for Comfort & Accuracy:** Recommended wear on index, middle, or ring finger ensures optimal sensor data and all-day comfort.

## Overview

The ULTRAHUMAN Ring AIR Sizing Kit offers a precise, 10-size range (5-14) to ensure your smart ring fits flawlessly. Designed for advanced biometric tracking, the ring is crafted from space-grade titanium with a scratch-resistant tungsten carbide coating. The kit encourages a 24-hour wear test for optimal sizing, recommending wear on specific fingers for best data accuracy. Available in six stylish colors, it pairs seamlessly with Bluetooth-enabled devices, making it the ultimate blend of premium durability, comfort, and cutting-edge health tech.

## Description

ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring : desertcart.in: Electronics

Review: very helpful - very helpful and easy to use,multiple plastic ring sizers that cover all common sizes, number on each ring,easy to find, quality is very good, durable and comfortable material,saves time,
Review: A Game-Changer for Health and Performance: The Ultrahuman Ring AIR - I've been using the Ultrahuman Ring AIR for a few weeks now, and I can confidently say it’s one of the most impressive fitness trackers I’ve ever used. As someone who’s deeply invested in both physical performance and overall well-being, this device checks all the right boxes. Design and Comfort: First off, the design is sleek and minimalistic, which is exactly what I was looking for. The ring is lightweight and incredibly comfortable to wear—almost forgettable during the day. It's made with high-quality materials that feel premium, and the matte finish gives it a sophisticated look. Whether I’m working out or just going about my daily activities, it blends seamlessly into my routine. Health Insights: The Ultrahuman Ring AIR is packed with sensors that provide in-depth insights into your body’s performance and recovery. The most standout feature for me has been its ability to track heart rate variability (HRV) and sleep quality—two metrics I rely heavily on to optimize my workouts and recovery. It also measures things like respiratory rate, body temperature trends, and activity levels throughout the day, making it easy to stay on top of my health. Battery Life: Another impressive feature is its battery life. With regular use, I’m getting around 4-5 days on a single charge. It charges quickly too, so I never have to be without it for long. Ultrahuman App: The Ultrahuman app is another highlight. It’s super intuitive and provides a clear, easy-to-understand breakdown of all the data. Overall Verdict: If you're looking for a wearable that does more than just count steps, the Ultrahuman Ring AIR is a must-have. Whether you're an athlete looking to optimize performance or someone simply trying to improve overall wellness, this ring offers invaluable data that’s actionable and easy to understand. It’s sleek, functional, and backed by cutting-edge technology. Highly recommend!

## Features

- SIZE FIRST - Ultrahuman Ring sizes are different from standard ring sizes. Purchase sizing kit first to get the perfect ring AIR size. Ring AIR is available in 10 sizes from 5-14.
- TRYING THE SIZING RING - It is important to first use the sizing kit to determine the ring AIR size. Wear your ring sizer for at least 24 hours to know your fit. Wear the ring such that the engraved size number is toward the palm of your hand.
- FINDING THE CORRECT FINGER - For optimal comfort and advanced sleep tracking, we recommend you wear the Ultrahuman Ring AIR on your index, middle, or ring finger.
- FIT CHECK: You will get highest data accuracy and optimal comfort with a properly fitting Ultrahuman Ring. Here are a few simple ways to assess this — If you rotate the ring on your finger, it should not rotate freely.
- CHOOSE YOUR RING: After you've precisely determined your size using our sizing kit, head over to desertcart to order your Ultrahuman Smart Ring.
- BUILD QUALITY: While our sizing kit is made of high-grade plastic, the Ultrahuman Ring stands leagues apart in its material composition. Crafted from space grade titanium and coated with scratch-resistant tungsten Carbide, your Ultrahuman Smart Ring promises superior quality and durability.
- PICK YOUR COLOUR: Once you know your size, you can now choose the colour of your ring from the swatch card provided in the box. The swatch card showcases all 6 colours: Aster Black, Space Silver, Bionic Gold, Matte Grey, Raw Titanium, and Brushed Rose Gold. Find the perfect match for your style.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7956WT1 |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Batteries Included | Yes |
| Batteries Required | No |
| Battery Average Life | 24 Hours |
| Battery Capacity | 24 Milliamp Hours |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | #903 in Electronics ( See Top 100 in Electronics ) #2 in Rings |
| Brand | ULTRAHUMAN |
| Charging Time | 2 Hours |
| Compatible Devices | Smartphone, Tablet |
| Connector Type | Bluetooth |
| Country of Origin | India |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,295) |
| Date First Available | 17 June 2024 |
| Device interface - primary | Touch Bar |
| Display Type | No Display |
| Generic Name | Ultrahuman Ring AIR Sizing Kit |
| Includes Rechargeable Battery | No |
| Item Weight | 3.7 g |
| Item model number | UHRA-BRG-05-WBSB |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Memory Storage Capacity | 0.5 MB |
| Model | UHRA-BRG-05-WBSB |
| Model Name | Ultrahuman Ring AIR Sizing Kit |
| Mounting Hardware | New Sizing Kit |
| Net Quantity | 1 Count |
| Number of items | 1 |
| Operating System | android |
| Package Dimensions | 19.2 x 11.7 x 3.1 cm; 3.7 g |
| Packer | Ultrahuman Healthcare PVT LTD, No. 4088/799, Third Floor, V K Paradise Sector-2HSR Layout, Bangalore Karnataka 560102 India, Contact - 18001028693, cyborg@ultrahuman.com |
| Ram Memory Installed Size | 0.5 MB |
| Special Features | anti-scratches |
| Wireless Type | Bluetooth |

## Product Details

- **Battery Capacity:** 24 Milliamp Hours
- **Connectivity Technology:** Bluetooth
- **Memory Storage Capacity:** 0.5 MB
- **Operating System:** android
- **Special Feature:** anti-scratches

## Images

![ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring - Image 1](https://m.media-amazon.com/images/I/81UQzOLIkwL.jpg)
![ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring - Image 2](https://m.media-amazon.com/images/I/71Z2x+LPTcL.jpg)
![ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring - Image 3](https://m.media-amazon.com/images/I/81bzA756mNL.jpg)
![ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring - Image 4](https://m.media-amazon.com/images/I/71myH98rh6L.jpg)
![ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring - Image 5](https://m.media-amazon.com/images/I/81Zs2jMdEOL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ very helpful
*by V***R on 15 February 2026*

very helpful and easy to use,multiple plastic ring sizers that cover all common sizes, number on each ring,easy to find, quality is very good, durable and comfortable material,saves time,

### ⭐⭐⭐⭐⭐ A Game-Changer for Health and Performance: The Ultrahuman Ring AIR
*by V***R on 30 November 2025*

I've been using the Ultrahuman Ring AIR for a few weeks now, and I can confidently say it’s one of the most impressive fitness trackers I’ve ever used. As someone who’s deeply invested in both physical performance and overall well-being, this device checks all the right boxes. Design and Comfort: First off, the design is sleek and minimalistic, which is exactly what I was looking for. The ring is lightweight and incredibly comfortable to wear—almost forgettable during the day. It's made with high-quality materials that feel premium, and the matte finish gives it a sophisticated look. Whether I’m working out or just going about my daily activities, it blends seamlessly into my routine. Health Insights: The Ultrahuman Ring AIR is packed with sensors that provide in-depth insights into your body’s performance and recovery. The most standout feature for me has been its ability to track heart rate variability (HRV) and sleep quality—two metrics I rely heavily on to optimize my workouts and recovery. It also measures things like respiratory rate, body temperature trends, and activity levels throughout the day, making it easy to stay on top of my health. Battery Life: Another impressive feature is its battery life. With regular use, I’m getting around 4-5 days on a single charge. It charges quickly too, so I never have to be without it for long. Ultrahuman App: The Ultrahuman app is another highlight. It’s super intuitive and provides a clear, easy-to-understand breakdown of all the data. Overall Verdict: If you're looking for a wearable that does more than just count steps, the Ultrahuman Ring AIR is a must-have. Whether you're an athlete looking to optimize performance or someone simply trying to improve overall wellness, this ring offers invaluable data that’s actionable and easy to understand. It’s sleek, functional, and backed by cutting-edge technology. Highly recommend!

### ⭐ Subhuman.. hazardous and traumatic ! Pls read before buying
*by D***J on 20 December 2025*

This review is not a reflection on the features of the ring which I am sure are good , but a fatal flaw in design from which I greatly suffered. Please read the experience below and know very well that there is a small chance this could be you …and think whether is a worth buying such a device I was using the ring for a few days when it got stuck at the bottom of my middle fingers and started to cause discomfort and swelling. As in the case of any normal ring , after failing to pull it off I went to a jeweller shop where they tried a variety of devices which simply could not cut through the strong material. Finally they took out a mini electric saw cutter which also failed to open a ring. The jeweller said that his devices were made for soft metals like gold , and that o would have to find a specialised machine to cut through titanium. It’s now 12:30 am , my swelling is out of control, what am I supposed to do ?? Now frantic with increased discomfort, I messaged customer support on the app ( they don’t have a number) who asked me to proceed to the Emergency Room. However , The doctors in the ER were equally perplexed about how to cut through this material , I frantically asked the support about which tool / power instrument could be used , they had absolutely no answer! There was also the added problem of a battery in the ring , and how to cut through that and with which instrument. Imagine an electrical cutter going through an inflammable battery. My finger by this time had swelled into a baloon, and I had no idea what to do next. We were frantically calling Emergency Rooms at 1 am in the morning , asking them if they had the required tools to break open the titanium band, two of the most premier hospitals in Delhi said that they did not, and only AIIMS had a bone saw cutter that could do the job. We were told that it is a trauma filled experience at AIIMS and decided to try apollo first. Imagine a ring that is Suppose to be a boon to your health becomes a Heath hazard , that simply cannot be taken off. To cut the story short, after multiple tries the ring finally came off at 2:30 am in the morning when a team of skilled plastic surgeons and doctors at apollo hospital finally got the off with the greatest difficultly. Literally 5 full size men had to exert all their cumulative muscle to slowly and painfully cut through the metal using a specialised device. Not only does the ring have absolutely no safety protocol , but there is zero information of how and where it can be cut off during a dire emergency like this. The worst part is the company simply doesn’t care about this hazardous malfunction in the product , after trying to get repeated information from them about the lack of support , guidelines , emergency protocol and statutory safety compliance , they did not even bother call and check on me , and simply offered to replace or refund the ring ( like I would ever wear their ring again). I don’t want anyone to go through , what proved to be one of the worst nights of my entire life, with my whole family sitting outside a ER and the doctor at one point of time bringing out an amputation to try different tools from it. The likelihood is that a situation like this would probably not reoccur with you , but I think you should be well aware of the possible consequences ( however remote ) of using this device. Especially when a company shows blatant disregard to such concerns.

## Frequently Bought Together

- ULTRAHUMAN Ring Air-Smart Ring Activity Tracker, Size First Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker (Sizing Kit, Swatch Sizing Kit), Black
- Ring Sizer Measuring Tool with Magnifying Glass,Reusable Finger Size Gauge Jewelry Sizing Tool 1-17 USA Rings Size 2Pcs

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-26*