---
product_id: 645829956
title: "ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring"
brand: "ultrahuman"
price: "$U184"
currency: UYU
in_stock: true
reviews_count: 13
category: "Ultrahuman"
url: https://www.desertcart.uy/products/645829956-ultrahuman-ring-air-sizing-kit-choose-from-sizes-5-14
store_origin: UY
region: Uruguay
---

# Multi-metric health tracking 10 precise sizes (5-14) Advanced sleep stage analysis ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring

**Brand:** ultrahuman
**Price:** $U184
**Availability:** ✅ In Stock

## Summary

> 📏 Fit Right, Live Bright: The Smart Ring Sizing Revolution

## 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?** $U184 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/645829956-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

- • **Women’s Health, Elevated:** Cycle, ovulation, and pregnancy tracking with biomarker-driven personalized insights—empowering every phase.
- • **All-in-One Health Dashboard:** Track sleep, activity, stress, heart health, and recovery seamlessly in one smart wearable.
- • **Perfect Fit, Zero Guesswork:** Avoid returns with the Ultrahuman Ring AIR Sizing Kit’s precise ring sizer—because your health deserves a flawless fit.
- • **Subscription-Free Essentials:** Access core health metrics and insights on the Ultrahuman App with zero subscription fees—health freedom unlocked.
- • **Sleep Smarter, Perform Better:** Deep dive into REM, deep, light sleep stages plus sleep debt tracking to optimize your daily recovery.

## Overview

The ULTRAHUMAN Ring AIR Sizing Kit ensures you select the perfect size from 10 options (5-14) for the Ultrahuman smart ring, which offers comprehensive health tracking including sleep stages, activity, stress, heart health, and advanced women’s health insights—all accessible without a subscription via the Ultrahuman App.

## Description

ULTRAHUMAN Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring : desertcart.co.uk: Sports & Outdoors

Review: best smart ring on the market! - best investment of 2025! looks and feels amazing on, very functional - you can track so much on it in real time. especially good if you struggle with sleep as it gives you detailed insights. i managed to get it on a black friday deal (£232) so the value for money was amazing! only con of this ring is that it does scratch easily but this can be mitigated by getting a cover for it.
Review: AMAZING RING - GREAT GADGET - RECOMMEND!!! - I’ve been using the Ultrahuman Ring for a few weeks now, and it has made a real difference to my daily routine. I love how accurately it tracks my activity and sleep, and the insights have helped me improve my focus and rest. It is incredibly durable, even through intense gym sessions and weight training and comfortable to wear, reliable, and definitely motivates me to stay consistent with my health goals.

## Features

- BUY THE SIZING KIT FIRST: Ultrahuman Ring sizes differ from standard ring sizes. Purchase the Ultrahuman Sizing Kit first, which includes a ring sizer, to accurately determine your size. The Ring AIR is available in 10 sizes (5-14), ensuring a comfortable, secure fit. Using the sizing kit helps you avoid returns and exchanges, ensuring you select the right size before purchasing.
- COMPREHENSIVE HEALTH TRACKING: The Ultrahuman Ring measures a wide range of metrics including sleep, activity, stress, heart health, movement, workouts, and recovery. Stay on top of your health and fitness goals with detailed insights to optimize your performance and well-being.
- WOMEN’S HEALTH INSIGHTS: With Ultrahuman Ring's advanced women's health features, track ovulation, cycles and pregnancy. Through multi-biomarker-based tracking for those looking to conceive, predict a 7-day fertile window and pinpoint ovulation with precision. Access cycle tracking combined with biomarker-based personalized guidance for every phase (Menstruation, Ovulation, Follicular, and Luteal). With Pregnancy Mode, expecting mothers get tailored pregnancy insights throughout each trimester.
- ONE APP, NO SUBSCRIPTION: Enjoy all the essential standard features of the Ultrahuman Ring, including sleep, activity, stress, heart rate, heart rate variability, skin temperature and recovery with no subscription — on the Ultrahuman App.
- ADVANCED SLEEP TRACKING: Ultrahuman Ring provides detailed insights into all your sleep stages — REM, Deep Sleep, Light Sleep and Wakefulness, along with actionable steps and nudges to improve sleep so you're ready for the day. It also tracks sleep debt, helping you understand your overall sleep quality and identify areas for improvement. Optimize your rest and recovery with accurate, personalized sleep insights.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D796MGRS |
| Best Sellers Rank | 312 in Fashion ( See Top 100 in Fashion ) 6 in Ring Sizers |
| Guaranteed software updates until | unknown |
| Item model number | UHRA-SSK-UK |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Package Dimensions | 19.3 x 11.5 x 3.2 cm; 40 g |

## Product Details

- **Battery capacity:** 24 Milliamp Hours
- **Battery cell composition:** Lithium Polymer
- **Brand:** ULTRAHUMAN
- **Connectivity technology:** Bluetooth, USB
- **GPS:** No GPS
- **Memory storage capacity:** 0.5 MB
- **Operating system:** Ultrahuman App
- **Shape:** Round
- **Special feature:** Activity Tracker, Custom Activity Tracker, Cycle Tracking, Multisport Tracker, Sedentary Reminder
- **Wireless communication standard:** Bluetooth

## 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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ best smart ring on the market!
*by D***G on 6 December 2025*

best investment of 2025! looks and feels amazing on, very functional - you can track so much on it in real time. especially good if you struggle with sleep as it gives you detailed insights. i managed to get it on a black friday deal (£232) so the value for money was amazing! only con of this ring is that it does scratch easily but this can be mitigated by getting a cover for it.

### ⭐⭐⭐⭐⭐ AMAZING RING - GREAT GADGET - RECOMMEND!!!
*by Y***Z on 10 December 2025*

I’ve been using the Ultrahuman Ring for a few weeks now, and it has made a real difference to my daily routine. I love how accurately it tracks my activity and sleep, and the insights have helped me improve my focus and rest. It is incredibly durable, even through intense gym sessions and weight training and comfortable to wear, reliable, and definitely motivates me to stay consistent with my health goals.

### ⭐⭐⭐⭐ So far so good....
*by G***. on 26 December 2025*

So far so good. Ring functions well with a few caveats. The times showing wake up etc are generally inaccurate. For example today I was up at 0458 and the ring indicated 0809. This then throws off some of the other stats. Additionally, I would like some more explanation or simplification of the stats and figures in the app as I am quite new at this. The ring looks good but come off periodically while I am doing things around the house. Perhaps I should have sized differently but wear it on my index finger by choice. May have to replace it for different size. Generally I am satisfied but would really like a less complex app UI for us newbies. Will update after further usage.

## Frequently Bought Together

- ULTRAHUMAN Ring AIR - Sleep & Fitness Tracker, Smart Ring for Women & Men, No App Fee for Standard Features
- RingConn Gen 2 Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Find The Perfect Ring Size Smart Ring Size
- 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 Uruguay*
*Store origin: UY*
*Last updated: 2026-01-24*