---
product_id: 587471204
title: "ULTRAHUMAN Ring AIR - Aster Black - Size 6 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker"
brand: "ultrahuman"
price: "€ 868.08"
currency: EUR
in_stock: false
reviews_count: 13
category: "Ultrahuman"
url: https://www.desertcart.fi/products/587471204-ultrahuman-ring-air-aster-black-size-6-smart-ring-no
store_origin: FI
region: Finland
---

# 10 sizes for perfect fit Advanced multi-stage sleep tracking Comprehensive heart & health metrics ULTRAHUMAN Ring AIR - Aster Black - Size 6 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker

**Brand:** ultrahuman
**Price:** € 868.08
**Availability:** ❌ Out of Stock

## Summary

> 💍 Unlock your health potential with the smartest ring on your finger.

## Quick Answers

- **What is this?** ULTRAHUMAN Ring AIR - Aster Black - Size 6 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker by ultrahuman
- **How much does it cost?** € 868.08 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/587471204-ultrahuman-ring-air-aster-black-size-6-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:** Track REM, deep, light sleep & wakefulness with actionable insights to optimize your rest.
- • **All-in-One Health Hub:** Monitor heart rate, stress, activity, recovery, and women’s health—all in one sleek ring.
- • **No Subscription, No Limits:** Access full health data and personalized insights on the Ultrahuman app with zero monthly fees.
- • **Precision Fit, Zero Hassle:** Start with the sizing kit to nail your perfect ring size—no returns, just comfort.
- • **Empower Your Wellness Journey:** From ovulation to pregnancy, get biomarker-driven guidance tailored to every phase of women’s health.

## Overview

The ULTRAHUMAN Ring AIR in Aster Black is a cutting-edge smart ring designed for professionals who demand precision and style. Available in 10 sizes with a dedicated sizing kit, it offers advanced tracking of sleep stages, heart rate, stress, activity, and women’s health metrics—all without a subscription. Lightweight and sleek, it delivers real-time, actionable insights via the Ultrahuman app, empowering users to optimize recovery, fitness, and wellness effortlessly.

## Description

ULTRAHUMAN Ring AIR - Aster Black - Size 6 - Smart Ring | No Monthly Subscription | Size First with Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker : 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: AMAZING RING - GREAT GADGET - RECOMMEND!!! - I’ve been using the Ultrahuman Ring for a few weeks now, and it has made a real difference to my daily routine. I love how accurately it tracks my activity and sleep, and the insights have helped me improve my focus and rest. It is incredibly durable, even through intense gym sessions and weight training and comfortable to wear, reliable, and definitely motivates me to stay consistent with my health goals.

## 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 | B0CHF56PDC |
| Best Sellers Rank | 3,425 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 16 in Wearable Tech Rings 38 in Activity Trackers |
| Department | Unisex |
| Guaranteed software updates until | unknown |
| Item model number | UHRA-MG-14 |
| Language | Italian |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Product Dimensions | 7.5 x 14 x 18 cm; 2.45 g |

## Product Details

- **Battery capacity:** 24
- **Battery cell composition:** Lithium Polymer
- **Brand:** ULTRAHUMAN
- **Connectivity technology:** Bluetooth, USB Type-C
- **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 - Aster Black - Size 6 - 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/61GwGujBDPL.jpg)
![ULTRAHUMAN Ring AIR - Aster Black - Size 6 - 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/718l+QNyJaL.jpg)
![ULTRAHUMAN Ring AIR - Aster Black - Size 6 - 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/71Nk9O+MkfL.jpg)
![ULTRAHUMAN Ring AIR - Aster Black - Size 6 - 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/71Vmd8KjL4L.jpg)
![ULTRAHUMAN Ring AIR - Aster Black - Size 6 - 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/71rYb+5f6iL.jpg)

## 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.

### ⭐⭐⭐⭐⭐ AMAZING RING - GREAT GADGET - RECOMMEND!!!
*by Y***Z on 10 December 2025*

I’ve been using the Ultrahuman Ring for a few weeks now, and it has made a real difference to my daily routine. I love how accurately it tracks my activity and sleep, and the insights have helped me improve my focus and rest. It is incredibly durable, even through intense gym sessions and weight training and comfortable to wear, reliable, and definitely motivates me to stay consistent with my health goals.

### ⭐⭐⭐⭐ 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 (Size 6)
- GABIT Smart Ring Sizing Kit | Size First Before You Buy | Includes 8 Sample Ring Sizes for Men, Women | Tracker for Health, Fitness, Steps, Sleep, Stress, Workouts, Sports, HRV, SPO2, Temp & Nutrition

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**Shop now:** [https://www.desertcart.fi/products/587471204-ultrahuman-ring-air-aster-black-size-6-smart-ring-no](https://www.desertcart.fi/products/587471204-ultrahuman-ring-air-aster-black-size-6-smart-ring-no)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-05*