---
product_id: 703964909
title: "Oura Smart Ring 4 - Stealth - Size 10 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible"
brand: "oura"
price: "229880 Ft"
currency: HUF
in_stock: true
category: "Oura"
url: https://www.desertcart.hu/products/703964909-oura-smart-ring-4-stealth-size-10-non-standard-fit
store_origin: HU
region: Hungary
---

# 8-day battery life 30+ biometric sensors Advanced sleep tracking Oura Smart Ring 4 - Stealth - Size 10 - | Non-Standard Fit – Measure with a Size Kit |Sleep, Heart Rate and Fitness Tracking Wearable | 8-Day Battery, iOS / Android Compatible

**Brand:** oura
**Price:** 229880 Ft
**Availability:** ✅ In Stock

## Summary

> 💍 Own your health, invisibly powerful.

## Quick Answers

- **What is this?** Oura Smart Ring 4 - Stealth - Size 10 - | 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?** 229880 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/703964909-oura-smart-ring-4-stealth-size-10-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

- • **Seamless Sync:** Effortlessly integrates with iOS and Android for real-time analytics and personalized wellness coaching.
- • **Sleek & Stealthy:** Minimalist titanium design in stealth black, engineered for comfort and style that fits your unique size.
- • **Sleep Like a Pro:** Unlock deep sleep patterns and optimize recovery with precision sleep monitoring.
- • **Biometric Mastery:** Track over 30 health metrics including heart rate variability, temperature, and activity levels.
- • **All-Day Powerhouse:** Up to 8 days of uninterrupted health insights with fast 80-minute wireless charging.

## Overview

The Oura Smart Ring 4 in Stealth is a titanium wearable designed for professionals seeking discreet, advanced health tracking. It monitors over 30 biometric signals including heart rate and sleep quality, offers up to 8 days of battery life with quick wireless charging, and syncs seamlessly with iOS and Android devices. Its minimalist design and customizable sizing make it a perfect blend of style and cutting-edge wellness technology.

## Description

Free delivery and returns on eligible orders. Buy Oura Smart Ring 4 - Stealth - Size 10 - | 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 | B0D9WVKWXN |
| Band Material Type | Titanium |
| Battery Average Life | 7 days |
| Battery Capacity | 144 Milliamp Hours |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Battery capacity | 144 Milliamp Hours |
| Best Sellers Rank | 409 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 3 in Wearable Tech Rings |
| Box Contents | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Brand Name | OURA |
| Closure Type | No Closure |
| Colour | Stealth |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | all current iPhone models, all current Android models |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Country of Origin | Estonia |
| Customer Reviews | 4.2 out of 5 stars 8,557 Reviews |
| Display Type | Analog |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Touchscreen |
| Item Dimensions | 24 x 24 x 8 millimetres |
| Item Weight | 6.3 Ounces |
| Manufacturer | Oura |
| Memory Storage Capacity | 16 MB |
| Memory storage capacity | 16 MB |
| Metrics Measured | Heart Rate Monitor, Sleep Monitor |
| Model Number | JZ90-54218-10 |
| Operating System | Android |
| Operating system | Android |
| Product Features | Advanced Health Tracking (Over 30 Biometrics) |
| Product Warranty | 3 year manufacturer warranty |
| Shape | Round |
| Special feature | Advanced Health Tracking (Over 30 Biometrics) |
| Style Name | Minimalist |
| Supported Application | Fitness Tracker |
| Supported Satellite Navigation System | GPS |
| Unit Count | 1.0 count |
| Warranty Type | Standard |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | Unlocked |
| Wireless communication standard | Bluetooth |

## Product Details

- **Battery capacity:** 144 Milliamp Hours
- **Battery cell composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity technology:** Bluetooth
- **GPS:** No GPS
- **Operating system:** Android
- **Shape:** Round
- **Special feature:** Advanced Health Tracking (Over 30 Biometrics)
- **Style:** Minimalist
- **Wireless communication standard:** Bluetooth

## Images

![Oura Smart Ring 4 - Stealth - Size 10 - | 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/51NatpBotdL.jpg)
![Oura Smart Ring 4 - Stealth - Size 10 - | 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/51GryhzriFL.jpg)
![Oura Smart Ring 4 - Stealth - Size 10 - | 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/71EiYyz2UNL.jpg)
![Oura Smart Ring 4 - Stealth - Size 10 - | 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/613EYvr-lAL.jpg)
![Oura Smart Ring 4 - Stealth - Size 10 - | 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/61hE2tAIk5L.jpg)

## Available Options

This product comes in different **Colour Name, Size Name** 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 10 - 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 10 - Charging Dock and USB-C Cable - Charges Oura Ring 4 up to 8 Days
- 10 Pack Ring Cover Compatible with Oura Ring Gen 4/Oura Ring Gen 3 Horizon/Gen 3 Heritage, Surport Charging with Cover on, Anti-Scratch Elastic Silicone Ring Protector for Men Women Working Out Gym

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**Shop now:** [https://www.desertcart.hu/products/703964909-oura-smart-ring-4-stealth-size-10-non-standard-fit](https://www.desertcart.hu/products/703964909-oura-smart-ring-4-stealth-size-10-non-standard-fit)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-08-22*