---
product_id: 660215837
title: "ULTRAHUMAN Ring AIR - Smart Ring | No App Subscription Fee | Size First with Sizing Kit | Sleep, Activity & Heart Rate Tracking | Fitness Ring for Men & Women"
brand: "ultrahuman"
price: "FREE"
currency: NOK
in_stock: false
url: https://www.desertcart.no/products/660215837-ultrahuman-ring-air-smart-ring-no-app-subscription-fee-size
store_origin: NO
region: Norway
---

# 24+ hrs wear test for perfect fit Optimized finger placement for accuracy 10 custom sizes (5-14) ULTRAHUMAN Ring AIR - Smart Ring | No App Subscription Fee | Size First with Sizing Kit | Sleep, Activity & Heart Rate Tracking | Fitness Ring for Men & Women

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

## Summary

> 📏 Find your perfect fit, wear your wellness.

## Quick Answers

- **What is this?** ULTRAHUMAN Ring AIR - Smart Ring | No App Subscription Fee | Size First with Sizing Kit | Sleep, Activity & Heart Rate Tracking | Fitness Ring for Men & Women 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.no](https://www.desertcart.no/products/660215837-ultrahuman-ring-air-smart-ring-no-app-subscription-fee-size)

## 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

- • **Wear It Your Way:** Recommended on index, middle, or ring finger for optimal comfort and advanced sleep tracking.
- • **Smart Recovery Insights:** Unlock your body's recovery score by tracking HRV and skin temperature for smarter wellness decisions.
- • **Precision Fit, No Guesswork:** Use the sizing kit overnight to nail your perfect Ultrahuman Ring AIR size before buying.
- • **Tailored Comfort for 24/7 Wear:** Designed for all-day and night comfort with a notch-less, ultra-thin profile weighing just 2.4g.
- • **Workout Mode for Peak Performance:** Track heart rate and intensity across multiple sports to elevate your fitness game.

## Overview

The Ultrahuman Ring Sizing Kit helps you select the ideal size (5-14) for the Ultrahuman Ring AIR, a sleek, ultra-light (2.4g) smart ring designed for continuous health tracking. By wearing the sizing ring for 24+ hours, users ensure a precise fit that maximizes comfort and accuracy in monitoring sleep, heart rate, HRV, skin temperature, and workout metrics.

## Description

Product description Ultrahuman Ring AIR is the most comprehensive smart ring health tracker available — a health tracker, sleep tracker, fitness tracker, and stress monitor in one lightweight titanium band with no app fee for core features. This smart ring tracks 100+ metrics from your fingertip with research-grade accuracy. The built-in heart rate monitor captures HR, HRV, blood oxygen (SpO2), and skin temperature continuously, delivering a recovery score each morning. As a sleep tracker ring, it analyses REM, Deep, Light Sleep, and Wakefulness stages with actionable nudges to improve rest quality. Smart Alarm wakes you at your lightest sleep phase. The Ring AIR is a powerful fitness tracker ring, step tracker, and activity tracker — monitoring steps, calories, and METs across 20+ workout modes. The Movement Index encourages daily activity for better cardiovascular health. What makes Ultrahuman unique is PowerPlugs — the world's first modular plug-in ecosystem on a smart ring. Free PowerPlugs include Vitamin D tracking (ideal for Canadian winters), Caffeine Window for optimal energy timing, Circadian Alignment, Social Jetlag monitoring, Shift Work support, and New Parent mode. Designed as a smart ring for women and a smart ring for men. Women's Health features include free ovulation tracking, menstrual cycle prediction, pregnancy monitoring, and a 7-day fertile window — using real biomarkers, not calendar estimates. Forged from space-grade titanium at just 2.4g — the lightest smart ring available. Waterproof to 100m for swimming, skiing, and everyday Canadian adventures. Compatible with iOS and Android. Available in 15+ languages including French. Buy the Sizing Kit first — Ultrahuman Ring sizes differ from standard sizes. Available in 10 sizes (5–14) and six colours. Manufacturer Contact Information ULTRAHUMAN HEALTHCARE PVT LTD No. 2, Sy.No. 49/1 & 49/3 Am industrial area Bangalore-560068

## Features

- YOUR ALL-IN-ONE SMART RING — 100+ HEALTH METRICS, NO APP FEE: Monitor heart rate, HRV, blood oxygen (SpO2), skin temperature, stress, and recovery from a single 2.4g titanium ring — the lightest smart ring available. Every core feature is free in the Ultrahuman app. No hidden fees. Compatible with iOS and Android.
- ADVANCED SLEEP & RECOVERY TRACKER: Detailed insights into every sleep stage — REM, Deep, Light, Wakefulness. Track accumulated sleep debt and skin temperature trends. Smart Alarm wakes you at your lightest phase. Daily recovery score with actionable nudges. Clinically validated sensors.
- SMART RING FOR WOMEN — CYCLE, FERTILITY & PREGNANCY: Track ovulation, menstrual cycles, and pregnancy with biomarker precision — not calendar estimates. Predict a 7-day fertile window across all 4 phases. Free Cycle & Ovulation tracking; Pregnancy Insights included. Discreet ring design that looks like jewellery.
- POWERPLUGS — THE WORLD'S FIRST SMART RING ECOSYSTEM: Free tools: Vitamin D tracking (essential for Canadian winters), Caffeine Window, Circadian Alignment, Shift Work support, New Parent mode, Screentime management. Premium add-on: AFib Detection with nightly medical-grade heart rhythm reports.
- SPACE-GRADE TITANIUM, 6-DAY BATTERY, WATERPROOF 100M: Hypoallergenic, scratch-resistant titanium with wireless charging case included. Wear it swimming, skiing, or in the rain. Buy the Sizing Kit first: Ultrahuman sizes differ from standard rings. Available in 10 sizes (5–14) and multiple colours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D8HYRS46 |
| Additional Features | Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Age Range Description | Adult |
| Band Color | black |
| Band Material Type | titanium |
| Battery Average Life | 6 days |
| Battery Capacity | 24 |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 2 hours |
| Best Sellers Rank | #87,522 in Sporting Goods ( See Top 100 in Sporting Goods ) #454 in Activity Trackers |
| Brand | ULTRAHUMAN |
| Built-In Media | Type C to Type C Cable, Ultrahuman Ring AIR, Wireless Charging Dock |
| Case Material Type | Titanium |
| Clasp Type | Ring |
| Closure Type | Pull On |
| Color | Matte Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone, Tablet, Laptop |
| Compatible Phone Models | All current smartphone models |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,803) |
| Display Type | Analog |
| External Testing Certification | Não aplicável |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 08906184870700 |
| Human Interface Input | Unknown |
| Item Dimensions | 17 x 15 x 7 centimeters |
| Item Weight | 2.4 Grams |
| Language | French |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Manufacturer Contact Information | ULTRAHUMAN HEALTHCARE PVT LTD No. 2, Sy.No. 49/1 & 49/3 Am industrial area Bangalore-560068 |
| Memory Storage Capacity | 0.5 MB |
| Metrics Measured | Heart Rate Monitor |
| Model Name | RA-AA-Size13-US |
| Model Number | Sizing Kit 3 |
| Operating System | Ultrahuman App |
| RAM Memory Installed | 0.5 MB |
| Shape | Round |
| Sport Type | Cycling, Fitness, Multi-Sports, Swimming, Yoga |
| Style Name | Modern |
| Supported Application | Custom Activity Tracker, Fitness Tracker, Heart Rate Monitor, Sleep Monitor, Stimulant Window Tracker |
| Target Audience | Unisex Adult |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Limited |
| Water Resistance Depth | 1 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX8 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery capacity:** 24
- **Connectivity technology:** Bluetooth
- **Memory storage capacity:** 0.5 MB
- **Operating system:** Ultrahuman App
- **Special features:** Activity Tracker, Custom Activity Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor

## Images

![ULTRAHUMAN Ring AIR - Smart Ring | No App Subscription Fee | Size First with Sizing Kit | Sleep, Activity & Heart Rate Tracking | Fitness Ring for Men & Women - Image 1](https://m.media-amazon.com/images/I/71tH17YH41L.jpg)

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.no/products/660215837-ultrahuman-ring-air-smart-ring-no-app-subscription-fee-size](https://www.desertcart.no/products/660215837-ultrahuman-ring-air-smart-ring-no-app-subscription-fee-size)

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-11-03*