---
product_id: 734451577
title: "ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription"
brand: "ultrahuman"
price: "FREE"
currency: EUR
in_stock: false
reviews_count: 13
url: https://www.desertcart.gr/products/734451577-ultrahuman-ring-air-smart-ring-track-sleep-hrv-and-stress
store_origin: GR
region: Greece
---

# 3-5 days battery life Waterproof for 24/7 wear Multi-metric health tracking ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription

**Brand:** ultrahuman
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 💍 Unlock your health’s hidden rhythms—right at your fingertip!

## Quick Answers

- **What is this?** ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription by ultrahuman
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/734451577-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

- • **Data-Driven Wellness:** Track sleep stages, HRV, heart rate, stress & recovery with clinical accuracy.
- • **Precision Fit, Zero Guesswork:** Sizing kit ensures your perfect ring size—no returns, no hassle.
- • **Women’s Health, Personalized:** Cycle, ovulation & pregnancy tracking with biomarker-based insights.
- • **All-Day Comfort, All-Night Insights:** Lightweight, waterproof design you’ll forget you’re wearing.
- • **Certified Renewed, Guaranteed Value:** Professionally inspected with 1-year warranty—premium tech, sustainable choice.

## Overview

The ULTRAHUMAN Ring AIR (Certified Renewed) is a sleek, waterproof smart ring offering 3-5 days of battery life and advanced multi-biomarker tracking for sleep, activity, stress, and women’s health. Certified renewed with a 1-year warranty, it includes a sizing kit for a perfect fit and delivers clinical-grade insights without monthly fees, empowering professionals to optimize wellness effortlessly.

## 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 16): desertcart.co.uk: Electronics & Photo

Review: Comfortable and Lightweight - Ring (size 11- raw titanium) is comfortable to wear and lightweight- easy to connect and charge. I’ve had the ring for about 10 days and it doesn’t disappoint- battery life is between 2-5 days depending on level of data usage. Battery care advises charging between 20-80% in short bursts. A quick charge for 15-20 minutes every other day suits my needs I have opted for the largest battery use in turbo data collection mode (all measurements continuously taken) there is also a medium and low data mode. In regards to accuracy it measures well- I previously had a WHOOP trial band and heart rate, cardio age HRV all seem similar. I really like the App and the dashboard which is easy to use and pleasant on the eye. The AI data interpretation is helpful and I find the recommendations useful. The ring automatically detects various events and will ask for user confirmation before adding/adjusting activity. The PowerPlugs are a handy addition and mostly free. There is a slight monthly subscription for more niche measurements that may suit other individual lifestyles. I still have a few days left before I get a full interpretation of results once my baseline has been set - I definitely enjoy using the data and have found the item value for money- especially as there are no further monthly payments needed to use the product.
Review: Great ring!! - Great product! Loving it so far , gives detailed information about my health

## 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 | B0D7956WT1 |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Material Type | Titanium |
| Battery Average Life | 6 days |
| Battery Capacity | 32 milliamp_hours |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 2 hours |
| Battery capacity | 32 milliamp_hours |
| Best Sellers Rank | 6,220 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 1,384 in Wearable Technology (Electronics & Photo) |
| Box Contents | Charging Dock, Type C to Type C Cable, Ultrahuman Ring AIR |
| Brand Name | ULTRAHUMAN |
| Case Material Type | Titanium |
| Closure Type | No Closure |
| Colour | Matte Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Android Phone, Iphone, Smartphone |
| Compatible Phone Models | Smartphone, Tablet |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Ultrahuman App |
| Customer Reviews | 4.2 out of 5 stars 1,032 Reviews |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Importer Contact Information | Ultrahuman, Ultrahuman Healthcare PVT LTD, No. 4088/799, third floor, V K Paradise Sector-2HSR Layout, Bangalore Karnataka 560102 India, Contact - 18001028693, cyborg@ultrahuman.com |
| Item Type Name | Ultrahuman Ring AIR Sizing Kit |
| Item Weight | 3.7 Grams |
| Language | German |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Memory Storage Capacity | 0.5 MB |
| Memory storage capacity | 0.5 MB |
| Metrics Measured | Blood Oxygen (SpO2), Body Temperature, Heart Rate, Menstrual Cycle, Sleep Duration |
| Model Name | Ultrahuman Ring AIR |
| Model Number | WBSBSizingKit |
| Operating System | Ultrahuman App |
| Product Features | Activity Tracker, HRV Monitoring, Heart Rate Monitor, Sleep Monitor, SpO2 Monitor |
| Product Warranty | 1 Year |
| RAM Memory Installed | 0.5 MB |
| Shape | Round |
| Special feature | Activity Tracker, HRV Monitoring, Heart Rate Monitor, Sleep Monitor, SpO2 Monitor |
| Sport Type | CrossFit, Cycling, Running, Swimming, Yoga |
| Style Name | Minimalist |
| Supported Application | Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, Sleep Monitor |
| Target Audience | Men, Unisex Adults, Unisex Youth, Women |
| Unit Count | 1.0 count |
| Warranty Type | Standard |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX8 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |

## Product Details

- **Battery capacity:** 32 milliamp_hours
- **Battery cell composition:** Lithium Ion
- **Brand:** ULTRAHUMAN
- **Connectivity technology:** Bluetooth
- **GPS:** No GPS
- **Memory storage capacity:** 0.5 MB
- **Operating system:** Ultrahuman App
- **Shape:** Round
- **Special feature:** Activity Tracker, HRV Monitoring, Heart Rate Monitor, Sleep Monitor, SpO2 Monitor
- **Wireless communication standard:** Bluetooth

## Images

![ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription - Image 1](https://m.media-amazon.com/images/I/61tgSI8YkiL.jpg)
![ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription - Image 2](https://m.media-amazon.com/images/I/71o1EKsWxwL.jpg)
![ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription - Image 3](https://m.media-amazon.com/images/I/81kvUbrFqNL.jpg)
![ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription - Image 4](https://m.media-amazon.com/images/I/81aK7zUMA7L.jpg)
![ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No subscription - Image 5](https://m.media-amazon.com/images/I/81+31D1fzzL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Comfortable and Lightweight
*by C***R on 8 March 2026*

Ring (size 11- raw titanium) is comfortable to wear and lightweight- easy to connect and charge. I’ve had the ring for about 10 days and it doesn’t disappoint- battery life is between 2-5 days depending on level of data usage. Battery care advises charging between 20-80% in short bursts. A quick charge for 15-20 minutes every other day suits my needs I have opted for the largest battery use in turbo data collection mode (all measurements continuously taken) there is also a medium and low data mode. In regards to accuracy it measures well- I previously had a WHOOP trial band and heart rate, cardio age HRV all seem similar. I really like the App and the dashboard which is easy to use and pleasant on the eye. The AI data interpretation is helpful and I find the recommendations useful. The ring automatically detects various events and will ask for user confirmation before adding/adjusting activity. The PowerPlugs are a handy addition and mostly free. There is a slight monthly subscription for more niche measurements that may suit other individual lifestyles. I still have a few days left before I get a full interpretation of results once my baseline has been set - I definitely enjoy using the data and have found the item value for money- especially as there are no further monthly payments needed to use the product.

### ⭐⭐⭐⭐⭐ Great ring!!
*by D***N on 4 September 2026*

Great product! Loving it so far , gives detailed information about my health

### ⭐⭐⭐⭐⭐ Great ring - sizing kit important!!
*by A***R on 4 August 2026*

I purchased my Ring Air about two weeks ago after researching Smart Rings online. I would absolutely recommend getting the sizing kit first, and spend a couple of days wearing different sized rings on different fingers as it will be worth it in the long run. The ring is great - there is no monthly subscription so you can access a comprehensive range of features through the app. It can take up to 14 days to calibrate with your body - during this time it begins to suggest ways to improve scores and overall well being. Quick and simple to charge - incredibly light, on the right finger it doesn’t feel like you’re wearing anything all. I have no problems recommending the Ring Air as I’m really impressed!!

## 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 Greece*
*Store origin: GR*
*Last updated: 2026-10-08*