---
product_id: 722783734
title: "Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible"
brand: "oura"
price: "218609 Ft"
currency: HUF
in_stock: true
category: "Oura"
url: https://www.desertcart.hu/products/722783734-oura-smart-ring-4-stealth-size-12-non-standard-fit
store_origin: HU
region: Hungary
---

# 8-day battery life 100m water resistant 80 min fast USB-C charge Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible

**Brand:** oura
**Price:** 218609 Ft
**Availability:** ✅ In Stock

## Summary

> 💍 Own your health in stealth mode — smarter, sleeker, stronger.

## Quick Answers

- **What is this?** Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible by oura
- **How much does it cost?** 218609 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/722783734-oura-smart-ring-4-stealth-size-12-non-standard-fit)

## Best For

- oura enthusiasts

## Why This Product

- Trusted oura brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-day power, no pause:** Enjoy a full 8 days of uninterrupted health tracking with rapid 80-minute USB-C charging—because your life doesn’t wait.
- • **Waterproof for your active life:** Dive into your day worry-free with 100 meters of water resistance—whether it’s a workout or a weekend getaway.
- • **Deep health insights, effortless:** Track heart rate, sleep quality, activity, and stress with precision sensors and an intuitive app that turns data into actionable wellness.
- • **Tailored fit, personalized style:** Non-standard sizes with a sizing kit ensure a perfect fit, making this smart ring your discreet yet powerful wellness companion.
- • **Sleek stealth meets titanium strength:** Crafted from durable titanium in a minimalist stealth finish, this ring blends seamlessly with your style while standing up to daily wear.

## Overview

The Oura Smart Ring 4 in Stealth is a titanium-crafted wearable designed for professionals seeking discreet yet powerful health monitoring. It offers 8-day battery life with fast USB-C charging, tracks heart rate, sleep, activity, and stress, and is water resistant up to 100 meters. Compatible with iOS and Android, it integrates seamlessly with a user-friendly app for deep wellness insights, all wrapped in a minimalist, stylish design with a perfect fit guaranteed by a sizing kit.

## Description

Free delivery and returns on eligible orders. Buy Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible at desertcart UK.

## Features

- Compact and intelligent design for comfortable everyday wear
- Advanced health monitoring capabilities, including heart rate, sleep patterns, and activity tracking
- Long battery life with convenient wireless charging
- Seamless smartphone app integration for detailed health and activity analytics
- Available in multiple finishes and sizes for personalized style

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WVW5XB |
| Age Range Description | Adult |
| Band Material Type | Titanium |
| Battery Average Life | 8 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | 442 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 2 in Wearable Tech Rings |
| Box Contents | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Brand Name | OURA |
| Case Material Type | Titanium |
| Clasp Type | No Clasp (Fixed Size) |
| Closure Type | Buckle |
| Colour | Stealth |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth, USB |
| Connectivity technology | Bluetooth, USB |
| Controller Type | Gesture Recognition |
| Country of Origin | Estonia |
| Customer Reviews | 4.3 out of 5 stars 8,663 Reviews |
| Display Type | Without display |
| GPS | No GPS |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 06430060153561 |
| Human Interface Input | Buttons |
| Item Dimensions | 26 x 26 x 8 millimetres |
| Item Dimensions D x W x H | 8D x 26W x 8H millimetres |
| Item Weight | 0.18 Kilograms |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate Monitor, Sleep Duration, Distance, Step Count, Calories Burned, Stress |
| Model Name | Oura Ring 4 - Stealth - Size 12 |
| Model Number | JZ90-54218-12 |
| Operating System | Android |
| Operating system | Android |
| Product Features | Sleep Monitor |
| Product Warranty | 3 year manufacturer warranty |
| Shape | Rund |
| Special feature | Sleep Monitor |
| Style Name | Minimalist |
| Supported Application | Fitness Tracker |
| Supported Satellite Navigation System | GPS |
| Target Audience | Uni-Erwachsene |
| Warranty Type | Lifetime |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |

## Product Details

- **Battery cell composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity technology:** Bluetooth, USB
- **GPS:** No GPS
- **Model name:** Oura Ring 4 - Stealth - Size 12
- **Operating system:** Android
- **Shape:** Rund
- **Special feature:** Sleep Monitor
- **Style:** Minimalist
- **Wireless communication standard:** Bluetooth

## Images

![Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible - Image 1](https://m.media-amazon.com/images/I/418ROdi0vFL.jpg)
![Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible - Image 2](https://m.media-amazon.com/images/I/41tJsKzO2KL.jpg)
![Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible - Image 3](https://m.media-amazon.com/images/I/418msFWVsXL.jpg)
![Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible - Image 4](https://m.media-amazon.com/images/I/414AOMY+IfL.jpg)
![Oura Smart Ring 4 - Stealth - Size 12 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible - Image 5](https://m.media-amazon.com/images/I/41VAdbswOuL.jpg)

## Available Options

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

## Questions & Answers

**Q: How long should my ring work between charges?**
A: Oura Ring 4 typically lasts 5-8 days on a full charge, depending on usage. Contact Oura Member Care if you have questions or concerns with battery life, and they will ensure your problem is resolved

**Q: How do I choose the right Oura Ring size?**
A: Using the Oura Ring 4 Sizing Kit, choose a finger for your ring. We recommend the index, middle or ring finger. Wear the sizer ring for 24 hours to ensure the fit is secure and comfortable over the course of your day.

**Q: What's included?**
A: Oura Ring 4, Oura Ring 4 Charger, and USB-C Cable.

**Q: How do I see my Oura Ring metrics?**
A: After activating your Oura Ring, you can choose a monthly or annual membership to unlock full access to Oura’s features, daily health and wellness metrics, and personalized guidance.

**Q: Can I use more than one ring?**
A: Oura Members can now connect more than one Oura Ring 4 to their Oura App and quickly switch between them. Note, this feature only supports wearing and syncing data from one active Oura Ring at a time.

## Frequently Bought Together

- Oura Ring 4 - Stealth - Size 12 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
- Oura Ring 4 Charger - Size 12 - Charging Dock and USB-C Cable - Charges Oura Ring 4 up to 8 Days

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**Shop now:** [https://www.desertcart.hu/products/722783734-oura-smart-ring-4-stealth-size-12-non-standard-fit](https://www.desertcart.hu/products/722783734-oura-smart-ring-4-stealth-size-12-non-standard-fit)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-09-13*