---
product_id: 598159012
title: "ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker"
brand: "ultrahuman"
price: "5419 kr"
currency: DKK
in_stock: true
reviews_count: 11
category: "Ultrahuman"
url: https://www.desertcart.dk/products/598159012-ultrahuman-ring-air-space-silver-size-11-smart-ring-no
store_origin: DK
region: Denmark
---

# 10 precise biometric sensors Advanced multi-stage sleep tracking No monthly subscription, lifetime use ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker

**Brand:** ultrahuman
**Price:** 5419 kr
**Availability:** ✅ In Stock

## Summary

> 💍 Elevate your wellness game—wear the future on your finger.

## Quick Answers

- **What is this?** ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker by ultrahuman
- **How much does it cost?** 5419 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/598159012-ultrahuman-ring-air-space-silver-size-11-smart-ring-no)

## 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 nudges to optimize your rest and recovery.
- • **Perfect Fit, Every Time:** Size First with Sizing Kit ensures a flawless, comfortable fit—no guesswork, no returns.
- • **All-in-One Health Command:** Track sleep, heart rate, stress, activity, and recovery seamlessly in one sleek ring.
- • **Subscription-Free Freedom:** Access full health insights on the Ultrahuman App with zero monthly fees—own your data, always.
- • **Women’s Health, Elevated:** Cycle, ovulation, and pregnancy tracking with personalized biomarker insights for empowered wellness.

## Overview

The ULTRAHUMAN Ring AIR in Space Silver is a smart ring designed for professionals who demand precise health tracking without subscription fees. Featuring 10 biometric sensors, it offers comprehensive insights into sleep stages, heart rate, stress, activity, and women’s health metrics including cycle and pregnancy tracking. The included sizing kit guarantees a perfect fit, making it a seamless addition to your daily wellness routine.

## Description

ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker : desertcart.co.uk: Electronics & Photo

Review: Finally a wearable that does what I actually want — without the subscription trap - Over the years I’ve tried Withings, Fitbit, the Google Pixel Watch, and various cheaper off-brand “smart” watches. While some of them do impressive things, I’ve consistently been disappointed — mainly due to poor battery life, awkward small screens for basic tasks, and constant notifications that become more annoying than useful (assuming the battery hasn’t died first). This time, I wanted something simple and unassuming. Something that tracked my steps, sleep, and fitness metrics properly. No mandatory monthly subscription. No distraction on my wrist. Just useful insight. I’d been looking at smart rings for a while. Oura was the obvious comparison — it looks great — but the ongoing subscription cost and the patent disputes in the US put me off. Then I discovered Ultrahuman. Low barrier to entry The ring sizing kit cost me 10p (or I could have 3D printed one using files from their website). That immediately impressed me. By comparison, Oura charges around £10 for their sizing kit and only refunds it if you go on to buy the ring. Ultrahuman made the entry point incredibly accessible. The reviews were strong, battery life looked reasonable (4–6 days), and the app screenshots looked genuinely useful. Setup & first impressions I purchased the Ring AIR (size 11, brushed titanium) along with the Ultrahuman Ring Voyager charger for faster charging. Everything arrived promptly, and I was set up within minutes. The ring immediately told me it would take around 14 days to fully calibrate to my baseline metrics, but useful data started appearing within the first hour — even in “Chill Mode” (a battery optimisation mode that extends life further). For peace of mind, I also opted for Ultrahuman X (~£50 for 2 years), which covers accidental loss/damage. I know I specifically didn’t want a subscription model, but for an expensive device like this, that felt reasonable and optional. Battery life & comfort The ring is extremely comfortable — I often forget I’m wearing it. Battery life is around 4 days for me, and likely could stretch further. Charging with the Voyager dock is quick and painless — comfortably back to full within two hours. The app experience The app is genuinely impressive — and completely free. There’s a lot of data, which can feel slightly overwhelming at first, but Ultrahuman does an excellent job explaining what each metric means. The longer you use it, the more insightful the reporting becomes (weekly summaries are particularly useful). The app also includes “PowerPlugs” — optional add-ons that extend functionality. Many are free (e.g. Caffeine Window), while some are paid. For example, UltraSync for Tesla provides things like Drive Readiness Score and Drive Stress tracking. I was initially wary that this might be the “hidden subscription model” — but there are far more free PowerPlugs than paid ones, and the core functionality is more than sufficient for most users. It feels optional rather than restrictive, which is the right balance. There are also links within the app to Ultrahuman’s other products (Metabolism, Home, Vision). I was slightly concerned these might feel like constant upsells, but they’re unobtrusive. No annoying ads, no aggressive prompts — and if you owned those products, having everything within one app would actually be preferable to juggling multiple apps. Overall I’m genuinely impressed with the Ultrahuman Ring AIR. It’s comfortable, provides meaningful and well-presented insights, has solid battery life, and - importantly - doesn’t lock core functionality behind a mandatory subscription. It does exactly what I wanted: simple, smart health tracking without the noise. Highly recommended. Five stars from me.
Review: Great idea, badly implemented and let down by poor quality control and battery technology - When it worked, it was great, but the battery performance falls off very quickly, and one it does, support is frustrating and tedious. My first one ran fine for about 6 months, and then dropped from 4-5 days of battery life to needing to be charged twice a day in the space of about 6 weeks. The only support was accessible through the app, but insisted on repeated updates of firmware and factory resets with the instruction to "monitor it for 48 hours and come back to us" - this process ran for weeks before I lost my patience and insisted on a replacement. The replacement similarly dropped off in battery performance (and also suffered connection issues, regularly losing all data for several days at a time). Support was once again tedious and frustrating, and an update to the app format has made the support chat less straightforward to access. I'm now told (after multiple factory resets etc) that I'm out of my warranty period, and not elegible for a replacement - despite the app's support tool telling me that I'm eligible for a replacement - although as a goodwill gesture they are prepared to send me a certified refurbished ring. I haven't yet decided whether to accept, as I have already swapped to using an arm-worn tracker instead. The app isn't as slick and the insights aren't as helpful, but at least it stays charged for over a week and retains its connection to the app.

## 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 | B0CHF5GJJB |
| Age Range Description | Adult |
| Band Colour | Space Silver |
| Band Material Type | titanium |
| Battery Average Life | 6 days |
| Battery Capacity | 32 Milliamp Hours |
| Battery Cell Type | Lithium Ion |
| Battery Charge Time | 2 Hours |
| Best Sellers Rank | 2,447 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 9 in Wearable Tech Rings 32 in Activity Trackers |
| Box Contents | Charging Dock, Type C to Type C Cable, Ultrahuman Ring AIR |
| Brand Name | ULTRAHUMAN |
| Case Material Type | Titanium |
| Clasp Type | Ring |
| Closure Type | Ring |
| Colour | Space Silver |
| Communication Feature | Bluetooth |
| Compatible Devices | Android Phone, Iphone, Smartphone |
| Compatible Phone Models | Various models of smartphones with Bluetooth |
| Connectivity Technology | Bluetooth |
| Controller Type | Ultrahuman App |
| Country of Origin | India |
| Customer Reviews | 3.8 3.8 out of 5 stars (1,599) |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Dimensions | 7.5 x 14 x 18 centimetres |
| Item Type Name | smart ring |
| Item Weight | 0.4 Kilograms |
| Language | Italian |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Memory Storage Capacity | 0.5 MB |
| Metrics Measured | Blood Oxygen (SpO2), Body Temperature, Heart Rate, Menstrual Cycle, Sleep Duration, Step Count, Stress |
| Model Name | Ultrahuman Ring AIR |
| Model Number | UHRA-MG-14 |
| Operating System | Ultrahuman App |
| Product Features | Activity Tracker, Custom Activity Tracker, HRV Monitoring, Heart Rate Monitor, Multisport Tracker, Skin Temperature Monitoring, Sleep Monitor, SpO2 Monitor |
| Product Warranty | 1 Year |
| Resolution | 240 x 240 |
| Shape | Ring |
| Sport Type | Basketball, CrossFit, Cycling, General Fitness, Golf, Hiking, Running, Soccer, Swimming, Triathlon, Weightlifting, Yoga |
| Style Name | Ultrahuman Ring |
| Supported Application | ['Sleep Monitor', 'Fitness Tracker', 'Heart Rate Monitor'] |
| Target Audience | Men, Unisex Adults, Unisex Youth, Women |
| Unit Count | 1.0 count |
| Warranty Type | Limited |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Waterproof |
| Waterproof Rating | IPX7 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | du |

## 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:** Ring
- **Wireless communication standard:** Bluetooth

## Images

![ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Image 1](https://m.media-amazon.com/images/I/71OSPB-sOkL.jpg)
![ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Image 2](https://m.media-amazon.com/images/I/61TAYYjlC5L.jpg)
![ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Image 3](https://m.media-amazon.com/images/I/81eV5rzXVCL.jpg)
![ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Image 4](https://m.media-amazon.com/images/I/81g7J3ucBML.jpg)
![ULTRAHUMAN Ring AIR - Space Silver - Size 11 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Image 5](https://m.media-amazon.com/images/I/81D6YsnZjdL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Finally a wearable that does what I actually want — without the subscription trap
*by A***H on 23 February 2026*

Over the years I’ve tried Withings, Fitbit, the Google Pixel Watch, and various cheaper off-brand “smart” watches. While some of them do impressive things, I’ve consistently been disappointed — mainly due to poor battery life, awkward small screens for basic tasks, and constant notifications that become more annoying than useful (assuming the battery hasn’t died first). This time, I wanted something simple and unassuming. Something that tracked my steps, sleep, and fitness metrics properly. No mandatory monthly subscription. No distraction on my wrist. Just useful insight. I’d been looking at smart rings for a while. Oura was the obvious comparison — it looks great — but the ongoing subscription cost and the patent disputes in the US put me off. Then I discovered Ultrahuman. Low barrier to entry The ring sizing kit cost me 10p (or I could have 3D printed one using files from their website). That immediately impressed me. By comparison, Oura charges around £10 for their sizing kit and only refunds it if you go on to buy the ring. Ultrahuman made the entry point incredibly accessible. The reviews were strong, battery life looked reasonable (4–6 days), and the app screenshots looked genuinely useful. Setup & first impressions I purchased the Ring AIR (size 11, brushed titanium) along with the Ultrahuman Ring Voyager charger for faster charging. Everything arrived promptly, and I was set up within minutes. The ring immediately told me it would take around 14 days to fully calibrate to my baseline metrics, but useful data started appearing within the first hour — even in “Chill Mode” (a battery optimisation mode that extends life further). For peace of mind, I also opted for Ultrahuman X (~£50 for 2 years), which covers accidental loss/damage. I know I specifically didn’t want a subscription model, but for an expensive device like this, that felt reasonable and optional. Battery life & comfort The ring is extremely comfortable — I often forget I’m wearing it. Battery life is around 4 days for me, and likely could stretch further. Charging with the Voyager dock is quick and painless — comfortably back to full within two hours. The app experience The app is genuinely impressive — and completely free. There’s a lot of data, which can feel slightly overwhelming at first, but Ultrahuman does an excellent job explaining what each metric means. The longer you use it, the more insightful the reporting becomes (weekly summaries are particularly useful). The app also includes “PowerPlugs” — optional add-ons that extend functionality. Many are free (e.g. Caffeine Window), while some are paid. For example, UltraSync for Tesla provides things like Drive Readiness Score and Drive Stress tracking. I was initially wary that this might be the “hidden subscription model” — but there are far more free PowerPlugs than paid ones, and the core functionality is more than sufficient for most users. It feels optional rather than restrictive, which is the right balance. There are also links within the app to Ultrahuman’s other products (Metabolism, Home, Vision). I was slightly concerned these might feel like constant upsells, but they’re unobtrusive. No annoying ads, no aggressive prompts — and if you owned those products, having everything within one app would actually be preferable to juggling multiple apps. Overall I’m genuinely impressed with the Ultrahuman Ring AIR. It’s comfortable, provides meaningful and well-presented insights, has solid battery life, and - importantly - doesn’t lock core functionality behind a mandatory subscription. It does exactly what I wanted: simple, smart health tracking without the noise. Highly recommended. Five stars from me.

### ⭐ Great idea, badly implemented and let down by poor quality control and battery technology
*by A***R on 24 March 2026*

When it worked, it was great, but the battery performance falls off very quickly, and one it does, support is frustrating and tedious. My first one ran fine for about 6 months, and then dropped from 4-5 days of battery life to needing to be charged twice a day in the space of about 6 weeks. The only support was accessible through the app, but insisted on repeated updates of firmware and factory resets with the instruction to "monitor it for 48 hours and come back to us" - this process ran for weeks before I lost my patience and insisted on a replacement. The replacement similarly dropped off in battery performance (and also suffered connection issues, regularly losing all data for several days at a time). Support was once again tedious and frustrating, and an update to the app format has made the support chat less straightforward to access. I'm now told (after multiple factory resets etc) that I'm out of my warranty period, and not elegible for a replacement - despite the app's support tool telling me that I'm eligible for a replacement - although as a goodwill gesture they are prepared to send me a certified refurbished ring. I haven't yet decided whether to accept, as I have already swapped to using an arm-worn tracker instead. The app isn't as slick and the insights aren't as helpful, but at least it stays charged for over a week and retains its connection to the app.

### ⭐⭐⭐⭐⭐ Comfortable and insightful!
*by D***Y on 20 March 2026*

The ring is very comfortable and there is a lot of data that is tracked. I’ve been finding it quite motivating and helpful to improve my sleep and mindfulness. The period and ovulation tracking is fantastic and very insightful.

## Frequently Bought Together

- ULTRAHUMAN Ring AIR-Smart Ring Activity Tracker, Size First Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker (Space Silver, 11)
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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-05-16*