---
product_id: 645829956
title: "Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring"
brand: "ultrahuman"
price: "Rp78404"
currency: IDR
in_stock: true
reviews_count: 9
category: "Ultrahuman"
url: https://www.desertcart.id/products/645829956-ring-air-sizing-kit-choose-from-sizes-5-14-sizing
store_origin: ID
region: Indonesia
---

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

**Brand:** ultrahuman
**Price:** Rp78404
**Availability:** ✅ In Stock

## Summary

> ⌚ Unlock your health’s full potential with the ring that fits your life perfectly.

## Quick Answers

- **What is this?** Ring AIR Sizing Kit | Choose from Sizes 5-14 | Sizing Guide for Your Smart Wearable Ring by ultrahuman
- **How much does it cost?** Rp78404 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/645829956-ring-air-sizing-kit-choose-from-sizes-5-14-sizing)

## 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

- • **Sleep Like a Pro:** Deep dive into REM, light, and deep sleep stages with actionable tips to optimize your nightly recovery.
- • **Subscription-Free Power:** Unlock essential health metrics and smart nudges with no monthly fees—just pure value.
- • **Women’s Health, Elevated:** Cycle, ovulation, and pregnancy tracking with personalized biomarker insights tailored for her.
- • **All-in-One Health Dashboard:** Track sleep, stress, heart health, activity, and recovery seamlessly in one sleek wearable.
- • **Perfect Fit, Zero Guesswork:** Exclusive sizing kit ensures your Ultrahuman Ring AIR fits flawlessly—no returns, no hassle.

## Overview

The ULTRAHUMAN Ring AIR Sizing Kit offers 10 distinct sizes (5-14) to guarantee a perfect fit for this advanced smart ring. Designed for comprehensive health tracking, it monitors sleep stages, heart rate, stress, activity, and recovery without requiring a subscription. Specialized women’s health features provide cycle, ovulation, and pregnancy insights powered by biomarker data. The sizing kit eliminates guesswork, ensuring you get the right ring size before purchase, enhancing comfort and accuracy in your wellness journey.

## 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: Probably my favourite wearable tech - i think the Ring Air is just fabulous. Excellent battery life that easily lasts 5 days. I don't really have to test it because I pop it on the charger when showering and that pretty much keeps it topped up. The Ring Air is very comfortable but I have developed a habit of sliding it half off to check it's positioned correctly and then sliding it back on. I wear mine on the ring finger of my right hand and find it to bee a good fit for me. The Ring Air and its competitors are all thicker than most rings and this can cause discomfort when wearing it on the middle or ring finger because they have fingers on either side. I can see how wearing it on the index finger might be most comfortable but after wearing the sizing kit on this finger for a day, it felt like it was constantly in the way or getting bashed on things. I've had my Astral Black Ring Air now for two months and it has yet to show any signs of wear. Accuracy seems pretty good but I've found the steps under count by about 5% compared to my smartwatch and the SpO2 never seems to go under 99% which for me I know is not right. SpO2 is still a beta feature though so I hope this gets more accurate. Sorry Ultrahuman but you lost a star there. I love the app! It is excellent and provides great detail on your various stats and I like the nudges to remind me about movement and stimulant windows. I know the Oura gets better scores from a lot of people and I ordered both to compare. The Oura was just as comfortable to wear but everything about Ultrahuman's app was so much better and did not require £6 per month to use. I'm very pleased with my decision to go with the Ring Air.

## 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 | 689 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 |
| Product Dimensions | 3.25 x 11.65 x 19.4 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

![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)

## Available Options

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

## 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.

### ⭐⭐⭐⭐⭐ Probably my favourite wearable tech
*by R***E on 2 June 2024*

i think the Ring Air is just fabulous. Excellent battery life that easily lasts 5 days. I don't really have to test it because I pop it on the charger when showering and that pretty much keeps it topped up. The Ring Air is very comfortable but I have developed a habit of sliding it half off to check it's positioned correctly and then sliding it back on. I wear mine on the ring finger of my right hand and find it to bee a good fit for me. The Ring Air and its competitors are all thicker than most rings and this can cause discomfort when wearing it on the middle or ring finger because they have fingers on either side. I can see how wearing it on the index finger might be most comfortable but after wearing the sizing kit on this finger for a day, it felt like it was constantly in the way or getting bashed on things. I've had my Astral Black Ring Air now for two months and it has yet to show any signs of wear. Accuracy seems pretty good but I've found the steps under count by about 5% compared to my smartwatch and the SpO2 never seems to go under 99% which for me I know is not right. SpO2 is still a beta feature though so I hope this gets more accurate. Sorry Ultrahuman but you lost a star there. I love the app! It is excellent and provides great detail on your various stats and I like the nudges to remind me about movement and stimulant windows. I know the Oura gets better scores from a lot of people and I ordered both to compare. The Oura was just as comfortable to wear but everything about Ultrahuman's app was so much better and did not require £6 per month to use. I'm very pleased with my decision to go with the Ring Air.

### ⭐⭐⭐⭐ 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 Indonesia*
*Store origin: ID*
*Last updated: 2026-03-23*