---
product_id: 726688155
title: "Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life"
brand: "ultrahuman"
price: "¥120287"
currency: JPY
in_stock: true
category: "Ultrahuman"
url: https://www.desertcart.jp/products/726688155-ultrahuman-ring-air-no-app-subscription-required-smart-ring-sizing
store_origin: JP
region: Japan
---

# 24+ hour fit test 5 stylish color options 10 precise ring sizes Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life

**Brand:** ultrahuman
**Price:** ¥120287
**Availability:** ✅ In Stock

## Summary

> 📏 Find your perfect fit, flaunt your style, and track your health like a pro.

## Quick Answers

- **What is this?** Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life by ultrahuman
- **How much does it cost?** ¥120287 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/726688155-ultrahuman-ring-air-no-app-subscription-required-smart-ring-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

- • **Comfort That Lasts:** Snug fit ensures the ring won’t spin, delivering maximum data accuracy and all-day wearability.
- • **Style Meets Substance:** Choose from 5 sleek colors like Raw Titanium and Bionic Gold to match your personal brand.
- • **Perfect Fit, Every Time:** Try on 10 exact sizes to nail your Ring AIR fit before you buy—no guesswork, no returns.
- • **Smart Sizing, Smarter Purchase:** Use the sizing kit’s 24-hour wear test to confidently select your perfect smart ring size.
- • **Wear It Right, Track It Better:** Recommended on index, middle, or ring finger for optimal comfort and advanced health insights.

## Overview

The ULTRAHUMAN Ring Air Sizing Kit offers 10 precise ring sizes and 5 color options to help you find your perfect smart ring fit. Designed for comfort and accuracy, the kit encourages a 24-hour wear test to ensure optimal sizing before purchase. Ideal for advanced sleep and fitness tracking, this sizing kit eliminates guesswork and returns, empowering you to confidently select your ULTRAHUMAN Ring AIR.

## Description

desertcart.co.jp: Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life (5, Aster : Sports & Outdoors

## Features

- Please choose the appropriate size: Available in 10 sizes, from 5 to 14. Order the Ultrahuman Ring AIR sizing kit on desertcart to find your ideal fit.
- The sleep score is obtained to help understand various sleep stages, including deep sleep, REM sleep, light sleep, and wakefulness.During the different stages of sleep, various metabolic processes in the body occur for growth, repair, recovery, and maintenance.
- It is designed to support movement throughout the day, enabling improvements in movement metrics, metabolism, and cardiovascular function.It tracks steps, calories, metabolic equivalent (MET), and more.
- The recovery score provides insights into the various signals your body sends throughout the day, helping you gain a deeper understanding of your body’s needs.This is derived from a combination of key metrics such as heart rate variability (HRV), heart rate, and the interpretation of signals sent by the body, allowing you to monitor overall health.
- Available in 15 languages: The Ultrahuman app is now available in English, French, Thai, Chinese, Malay, Indonesian, Czech, Japanese, Korean, German, Spanish, Italian, Swedish, Portuguese, and Russian.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CLB6K74J |
| Additional Features | Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Age Range Description | Adult |
| Amazon Bestseller | #43,033 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #50 in Activity & Fitness Trackers |
| Band Color | Aster Black |
| Band Material Type | Silicone |
| Battery Average Life | 6 days |
| Battery Capacity | 24 |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 2 Hours |
| Brand | ULTRAHUMAN |
| Built-In Media | Smart Ring |
| Case Material Type | Titanium |
| Clasp Type | Rings |
| Color | astar black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Android |
| Connectivity Technology | Bluetooth |
| Controller Type | Touch Control |
| Country of Origin | India |
| Customer Reviews | 4.2 4.2 out of 5 stars (2,496) |
| Display Type | No Display |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Human Interface Input | Unknown |
| Item Dimensions | 7.5 x 14 x 18 cm |
| Item Weight | 2.4 Grams |
| Language | Italian |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Memory Storage Capacity | 0.5 MB |
| Metrics Measured | Activity Monitor Sleep Time |
| Model Name | Ultrahuman Ring AIR |
| Model Number | UHRA-AA-05 |
| Operating System | Ultrahuman App |
| RAM Memory Installed | 0.5 MB |
| Resolution | Ring |
| Shape | Round |
| Sport Type | Cycling, Fitness, Multi-Sports, Swimming, Yoga |
| Style Name | Ultrahuman Ring |
| Supported Application | Phone |
| Target Audience | Unisex Adults |
| Warranty Description | 1 Year |
| Warranty Type | Limited |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX8 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | du |

## Product Details

- **Battery Capacity:** 24
- **Connectivity Technology:** Bluetooth
- **Memory Storage Capacity:** 0.5 MB
- **Operating System:** Ultrahuman App
- **Special Feature:** Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor

## Images

![Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life - Image 1](https://m.media-amazon.com/images/I/71Nk9O+MkfL.jpg)
![Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life - Image 2](https://m.media-amazon.com/images/I/718l+QNyJaL.jpg)
![Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life - Image 3](https://m.media-amazon.com/images/I/811FG0YrDhL.jpg)
![Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life - Image 4](https://m.media-amazon.com/images/I/81D7+8oo2eL.jpg)
![Ultrahuman Ring AIR, No App Subscription Required, Smart Ring with Sizing Kit for Initial Fit, Tracks Sleep, Activity, Heart Rate, and Heart Rate Variability, Up to 6 Days of Battery Life - Image 5](https://m.media-amazon.com/images/I/81G-cAbtdnL.jpg)

## Available Options

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

## Frequently Bought Together

- 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)
- RingConn Gen 2 Air Sizing Kit - Size First Before You Buy - Choose from 9 Sizes - Sizes 6 to 14 - Only Smart Ring
- Oura Ring 4 Sizing Kit - Size Before You Buy Oura Ring 4 - Unique Sizing - Receive Credit for Purchase

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**Shop now:** [https://www.desertcart.jp/products/726688155-ultrahuman-ring-air-no-app-subscription-required-smart-ring-sizing](https://www.desertcart.jp/products/726688155-ultrahuman-ring-air-no-app-subscription-required-smart-ring-sizing)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-04*