---
product_id: 676843225
title: "Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life"
brand: "oura"
price: "367751 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Oura"
url: https://www.desertcart.hu/products/676843225-oura-ring-4-smart-ring-size-first-with-oura-ring
store_origin: HU
region: Hungary
---

# 8 days battery life 30+ biometric sleep & health metrics Water-resistant titanium design Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life

**Brand:** oura
**Price:** 367751 Ft
**Availability:** ✅ In Stock

## Summary

> 💍 Elevate your wellness game—wear the future on your finger.

## Quick Answers

- **What is this?** Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life by oura
- **How much does it cost?** 367751 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/676843225-oura-ring-4-smart-ring-size-first-with-oura-ring)

## 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

- • **Unplug & Go:** Up to 8 days of battery life means freedom from constant charging—focus on living, not powering up.
- • **Smart Sensing Mastery:** Tracks 30+ biometrics including heart rate, sleep, stress & women’s health for truly personalized insights.
- • **Precision Sizing First:** Size yourself perfectly with the Oura Ring 4 Sizing Kit—no guesswork, just flawless fit.
- • **Exclusive Oura Membership:** Unlock premium health insights with your first month free, then $6.99/mo or $79.99 annually.
- • **Sleek, Durable, Comfortable:** All-titanium, water-resistant design crafted for 24/7 wear, even on sensitive skin.

## Overview

The Oura Ring 4 is a cutting-edge smart ring designed for professionals who demand precision and style. Featuring advanced Smart Sensing technology, it tracks over 30 biometric signals including sleep, heart rate, and stress with clinical accuracy. Its all-titanium, water-resistant build ensures comfort and durability for 24/7 wear, while an impressive 8-day battery life keeps you unplugged longer. The included sizing kit guarantees a perfect fit, and the Oura membership unlocks deep health insights, making it the ultimate wearable for holistic wellness.

## Description

Oura Ring 4 - Gold - Size 4 - Smart Wearable | Size First with Oura 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life : desertcart.ae: Electronics

Review: dying battery render the ring useless, free replacement seamlessly provided - Product works as expected and is hepful. After 7 months of usage battery is dying, resisiting less than one day after full charged. I contacted the seller, and free replacement arrived in couple of days, no need to return the mafunctioning one. As such, a one star reviewe turned into a 5 stars.
Review: Pricey and good quality - No wonder it is priced very high but it delivers the quality justifying the price tag

## Features

- SIZE BEFORE YOU BUY - Oura Ring 4 sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit and receive a dh35.00 desertcart credit towards the future purchase of an Oura Ring 4.
- OURA MEMBERSHIP - First month of membership is free with your purchase, $6.99/mo afterwards. Offer available to new members only. Or opt for the annual prepaid option for $79.99. Membership is tied to your account via the Oura App, not your physical ring.
- ACCURACY - SMART SENSING - Oura tracks over 30 biometrics, including sleep, activity, stress, heart health, and women’s health metrics. Oura Ring 4 is powered by Smart Sensing, which adapts to you — delivering accurate, continuous data, day and night.
- LONG LASTING BATTERY - With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present. From a workout to a night out — you’re free to forget it’s on. Until you start getting compliments.
- DESIGNED FOR 24/7 WEAR - The updated design of the Oura Ring 4 is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WW8V53 |
| Additional Features | Heart Rate Monitor, Sleep Monitor |
| Age Range Description | Adult |
| Band Color | Gold |
| Band Material Type | Gold |
| Battery Average Life | 8 days |
| Battery Capacity | 8 |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #12,376 in Electronics ( See Top 100 in Electronics ) #46 in Wearable Tech Rings |
| Brand | OURA |
| Built-In Media | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Case Material Type | Titanium |
| Closure Type | Slip On |
| Color | Gold |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Country of Origin | Estonia |
| Customer Reviews | 4.1 4.1 out of 5 stars (7,024) |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 06430060153240 |
| Human Interface Input | Unknown |
| Item Dimensions | 25 x 25 x 7 millimeters |
| Item Dimensions D x W x H | 25D x 25W x 7H millimeters |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate Monitor, Sleep Monitor |
| Model Name | Oura Ring 4 - Gold - Size 4 |
| Model Number | JZ90-54216-04 |
| Operating System | Proprietary OS |
| Shape | Round |
| Style Name | Minimalist |
| Supported Application | ['Sleep Monitor', 'Fitness Tracker', 'Heart Rate Monitor', 'Stress Monitor', 'Women's Health Tracker', 'Activity Tracker', 'Apple Health', 'Google Health Connect', 'Natural Cycles', 'Flo', 'Strava'] |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Unit Count | 1.0 Count |
| Warranty Description | 2 year manufacturer warranty |
| Warranty Type | Standard |
| Water Resistance Depth | 1 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IPX7 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery capacity:** 8
- **Connectivity technology:** Bluetooth
- **Operating system:** Proprietary OS
- **Special features:** Heart Rate Monitor, Sleep Monitor
- **Wireless communication standard:** Bluetooth

## Images

![Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 1](https://m.media-amazon.com/images/I/51LkUIJiT8L.jpg)
![Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 2](https://m.media-amazon.com/images/I/51Xzm0WbnTL.jpg)
![Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 3](https://m.media-amazon.com/images/I/61ZqSV0fYqL.jpg)
![Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 4](https://m.media-amazon.com/images/I/71P5sVTI6NL.jpg)
![Oura Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life - Image 5](https://m.media-amazon.com/images/I/61zUDFM6dbL.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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ dying battery render the ring useless, free replacement seamlessly provided
*by R***U on 26 August 2025*

Product works as expected and is hepful. After 7 months of usage battery is dying, resisiting less than one day after full charged. I contacted the seller, and free replacement arrived in couple of days, no need to return the mafunctioning one. As such, a one star reviewe turned into a 5 stars.

### ⭐⭐⭐⭐⭐ Pricey and good quality
*by T***E on 23 November 2025*

No wonder it is priced very high but it delivers the quality justifying the price tag

### ⭐ Battery issue
*by A***Y on 16 February 2026*

After 5 months of usage battery capacity decreased to ~ 1.5 day. Sometimes during the night ring hangs and does not provide sleep metrics at all. This issue also seems to be related to battery malfunction. Latest firmware and soft resets do not help.

## Frequently Bought Together

- Oura Ring 4 - Gold - Size 4 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
- 3 Pack Cover Compatible with Oura Ring Gen 4/Oura Ring Gen 3 Horizon/Gen 3 Heritage, Surport Charging with Cover on, Anti-Scratch TPU Protector for Men Women Workout Gym
- ULTRAHUMAN Ring AIR-Smart Ring Health Tracker, Size First Sizing Kit,Sleep Tracker,Smart Ring for Men/Women,Fitness Tracker (Made in India, Swatch Sizing Kit, Swatch Sizing Kit)

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**Shop now:** [https://www.desertcart.hu/products/676843225-oura-ring-4-smart-ring-size-first-with-oura-ring](https://www.desertcart.hu/products/676843225-oura-ring-4-smart-ring-size-first-with-oura-ring)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-05-08*