---
product_id: 609466441
title: "ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription | 2.4g With 100m Water-Resistance, Recovery & Fitness Tracker, Cycle & Ovulation Tracking, Lifetime Free App Access (Size 5)"
brand: "ultrahuman"
price: "¥131817"
currency: JPY
in_stock: true
category: "Ultrahuman"
url: https://www.desertcart.jp/products/609466441-ultrahuman-ring-air-smart-ring-track-sleep-hrv-and-stress
store_origin: JP
region: Japan
---

# 6-day battery life 100m water resistance Multi-biomarker health tracking ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription | 2.4g With 100m Water-Resistance, Recovery & Fitness Tracker, Cycle & Ovulation Tracking, Lifetime Free App Access (Size 5)

**Brand:** ultrahuman
**Price:** ¥131817
**Availability:** ✅ In Stock

## Summary

> 💍 Unlock your health potential—wear the future on your finger.

## Quick Answers

- **What is this?** ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription | 2.4g With 100m Water-Resistance, Recovery & Fitness Tracker, Cycle & Ovulation Tracking, Lifetime Free App Access (Size 5) by ultrahuman
- **How much does it cost?** ¥131817 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/609466441-ultrahuman-ring-air-smart-ring-track-sleep-hrv-and-stress)

## 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

- • **Dive Deep, Stay Active:** IPX8 waterproof up to 100m—wear it swimming, running, or lifting without missing a beat.
- • **Precision Fit, Zero Hassle:** Sizing kit ensures your perfect Ultrahuman Ring AIR fit—no returns, no compromises.
- • **Subscription-Free Wellness:** Lifetime free app access with no hidden fees—unlock your health data anytime, anywhere.
- • **Women’s Health, Elevated:** Cycle, ovulation, and pregnancy tracking with personalized biomarker insights for every phase.
- • **All-in-One Health Command Center:** Track sleep, HRV, stress, workouts, and recovery seamlessly with one sleek ring.

## Overview

The ULTRAHUMAN Ring AIR is a titanium smart ring designed for comprehensive health tracking including sleep stages, heart rate variability, stress, and women’s health metrics like ovulation and pregnancy. It offers a 6-day battery life, 100m water resistance, and connects via Bluetooth to a subscription-free app, delivering personalized insights to optimize fitness and recovery in a sleek, durable form factor.

## Description

ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription | 2.4g With 100m Water-Resistance, Recovery & Fitness Tracker, Cycle & Ovulation Tracking, Lifetime Free App Access (Size 5) : desertcart.co.uk: Electronics & Photo

## 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 | B0CLB6K74J |
| Age Range Description | Adult |
| Band Colour | Aster Black |
| Band Material Type | Titanium |
| Battery Average Life | 6 days |
| Battery Capacity | 24 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 2 Hours |
| Battery capacity | 24 Milliamp Hours |
| Best Sellers Rank | 23,238 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 68 in Wearable Tech Rings 118,862 in Women's Jewellery |
| Box Contents | Type C to Type C Cable, Charging Dock, Ultrahuman Ring AIR |
| Brand Name | ULTRAHUMAN |
| Case Material Type | Titanium |
| Clasp Type | Ring |
| Closure Type | Snap |
| Colour | Aster Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone, Computer |
| Compatible Phone Models | Android |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Ultrahuman App |
| Customer Reviews | 3.2 out of 5 stars 1,083 Reviews |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Dimensions | 21 x 12 x 7.5 centimetres |
| Item Type Name | smart ring |
| Item Weight | 400 Grams |
| Language | Italian |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Memory Storage Capacity | 0.5 MB |
| Memory storage capacity | 0.5 MB |
| Metrics Measured | Accelerometer, Optical Heart Rate Sensor, Skin Temperature Sensor |
| Model Name | Ultrahuman Ring AIR |
| Model Number | UHRA-AA-05 |
| Operating System | Ultrahuman App |
| Product Features | Sleep Monitor, Skin Temperature Monitoring, SpO2 Monitor, Multisport Tracker, Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, HRV Monitoring |
| Product Warranty | 1 Year |
| RAM Memory Installed | 0.5 MB |
| Resolution | Ring |
| Shape | Ring |
| Special feature | Sleep Monitor, Skin Temperature Monitoring, SpO2 Monitor, Multisport Tracker, Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, HRV Monitoring Special feature Sleep Monitor, Skin Temperature Monitoring, SpO2 Monitor, Multisport Tracker, Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, HRV Monitoring See more |
| Sport Type | Weightlifting, Cycling, Triathlon, Golf, Soccer, General Fitness, Running, CrossFit, Swimming, Yoga, Basketball, Hiking |
| Style Name | Ultrahuman Ring |
| Supported Application | Ultrahuman App, Ultrahuman M1 integration |
| Target Audience | Women, Men, Unisex Adults, Unisex Youth |
| Unit Count | 1.0 count |
| Warranty Type | Limited |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX8 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | du |
| Wireless communication standard | Bluetooth |

## Product Details

- **Battery capacity:** 24
- **Battery cell composition:** Lithium Polymer
- **Brand:** ULTRAHUMAN
- **Connectivity technology:** Bluetooth
- **GPS:** No GPS
- **Memory storage capacity:** 0.5 MB
- **Operating system:** Ultrahuman App
- **Shape:** Round
- **Special feature:** Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor
- **Wireless communication standard:** Bluetooth

## Images

![ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription | 2.4g With 100m Water-Resistance, Recovery & Fitness Tracker, Cycle & Ovulation Tracking, Lifetime Free App Access (Size 5) - Image 1](https://m.media-amazon.com/images/I/61tgSI8YkiL.jpg)

## Available Options

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

## Frequently Bought Together

- ULTRAHUMAN Ring AIR – Sleep and Fitness Tracker, Smart Ring for Men and Women, No app fee for standard features, Up to 6 days battery life (Aster Black, 5)
- 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/609466441-ultrahuman-ring-air-smart-ring-track-sleep-hrv-and-stress](https://www.desertcart.jp/products/609466441-ultrahuman-ring-air-smart-ring-track-sleep-hrv-and-stress)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-05*