---
product_id: 745401489
title: "ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No Subscription"
brand: "ultrahuman"
price: "€ 2.34"
currency: EUR
in_stock: false
url: https://www.desertcart.hr/products/745401489-ultrahuman-ring-air-smart-ring-track-sleep-hrv-and-stress
store_origin: HR
region: Croatia
---

# 10 sizes for perfect fit Comprehensive sleep & recovery tracking Multi-biomarker health insights ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No Subscription

**Brand:** ultrahuman
**Price:** € 2.34
**Availability:** ❌ Out of 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 by ultrahuman
- **How much does it cost?** € 2.34 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/745401489-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

- • **Featherlight & Discreet:** At just 3.7 grams, this smart ring blends seamlessly into your lifestyle without weighing you down.
- • **Women’s Health, Elevated:** Advanced cycle, ovulation, and pregnancy tracking with personalized biomarker insights for every phase.
- • **Tailored Fit, Zero Guesswork:** Sizing kit ensures your Ultrahuman Ring AIR fits like a glove—no returns, no hassle.
- • **All-Day Health Command Center:** Track sleep, stress, heart health, workouts, and recovery with precision to optimize your daily performance.
- • **Certified Renewed, Guaranteed Quality:** Professionally inspected and backed by a 1-year warranty—premium tech with sustainable peace of mind.

## Overview

The ULTRAHUMAN Ring AIR (Certified Renewed) is a sleek, lightweight smart ring designed for comprehensive health and fitness tracking. Available in 10 precise sizes via a dedicated sizing kit, it monitors sleep, activity, stress, heart health, and women’s health metrics including ovulation and pregnancy. Each ring is professionally inspected, carries a 1-year warranty, and offers personalized biomarker insights to empower millennial professionals to optimize wellness with style and confidence.

## Description

Buy ULTRAHUMAN Ring AIR Smart Ring -Track Sleep, HRV & Stress, No Subscription: Rings - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- CERTIFIED RENEWED BY ULTRAHUMAN: Each Certified Renewed Ring AIR undergoes professional inspection and testing to meet Ultrahuman's performance standards. The ring may feature a unique visual signature due to the manufacturing process, making no two rings look identical. Enjoy your Certified Renewed Ring AIR with confidence, backed by a 1-year manufacturer warranty.
- To Claim warranty reach out to the customer support via Ultrahuman app and share the desertcart invoice, rest all will be taken care of.
- 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7956WT1 |
| Additional Features | Activity Tracker |
| Band Material Type | Silicone |
| Battery Average Life | 6 hours |
| Battery Capacity | 24 milliamp_hours |
| Battery Cell Type | Lithium Polymer |
| Best Sellers Rank | #197,674 in Electronics ( See Top 100 in Electronics ) #577 in Smart Rings |
| Brand | ULTRAHUMAN |
| Built-In Media | Type C to Type C Cable, Ultrahuman Ring AIR, Wireless Charging Dock |
| Color | Sizing Kit |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone, Tablet |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Customer Reviews | 4.2 out of 5 stars 301 Reviews |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Weight | 3.7 g |
| Language | German |
| Manufacturer | Ultrahuman Healthcare Pvt Ltd |
| Memory Storage Capacity | 0.5 MB |
| Metrics Measured | Activity Tracker, Cycle Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Duration |
| Model Name | Ultrahuman Ring AIR |
| Model Number | WBSBSizingKit |
| Operating System | Ultrahuman App |
| Shape | Round |
| Special Feature | Activity Tracker |
| Sport Type | Cycling, Fitness, Multi-Sports, Swimming, Yoga |
| Supported Application | Activity Tracker, Cycle Tracker, Heart Rate Monitor, Multisport Tracker, Sleep Monitor |
| Warranty Description | 1 Year Manufacturer, 1 Year Extended |
| Warranty Type | Standard/Full, Extended |
| Water Resistance Depth | 3 meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX8 |
| Wearable Computer Type | Smart Ring |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery Capacity:** 24 Milliamp Hours
- **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
- **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)

## 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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**Shop now:** [https://www.desertcart.hr/products/745401489-ultrahuman-ring-air-smart-ring-track-sleep-hrv-and-stress](https://www.desertcart.hr/products/745401489-ultrahuman-ring-air-smart-ring-track-sleep-hrv-and-stress)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-11-09*