---
product_id: 718335336
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: "€ 737.00"
currency: EUR
in_stock: true
reviews_count: 13
category: "Oura"
url: https://www.desertcart.es/products/718335336-oura-ring-4-smart-ring-size-first-with-oura-ring
store_origin: ES
region: Spain
---

# 8 days battery life All-titanium durable & sleek design 30+ biometric sleep & health metrics 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:** € 737.00
**Availability:** ✅ In Stock

## Summary

> 💍 Elevate your wellness game with the sleekest smart ring that fits your lifestyle and 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?** € 737.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/718335336-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

- • **Durable Elegance:** Crafted from lightweight, water-resistant titanium for a minimalist look that’s comfortable for 24/7 wear—even on sensitive skin.
- • **Size First, Perfect Fit:** Use the Oura Ring 4 Sizing Kit to ensure your ring fits flawlessly before purchase, avoiding any guesswork.
- • **Exclusive Oura Membership:** Enjoy your first month free with purchase, unlocking personalized insights and premium health analytics via the Oura app.
- • **Smart Sensing for Precision:** Tracks over 30 biometrics including heart rate, sleep, activity, stress, and women’s health with adaptive accuracy.
- • **Uninterrupted Wear, All Day & Night:** Up to 8 days of battery life with no screens or vibrations, so you stay focused and stylish without distractions.

## Overview

The Oura Ring 4 is a minimalist, all-titanium smart ring designed for continuous 24/7 wear, offering advanced health tracking with over 30 biometric sensors. It features up to 8 days of battery life, adaptive Smart Sensing technology, and a sizing kit to guarantee the perfect fit. Paired with an exclusive membership for personalized insights, it’s the ultimate wearable for professionals who demand precision, style, and seamless integration into their busy lives.

## Description

Oura Ring 4 - Rose Gold - Size 6 - 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 | B0D9WWJ9W8 |
| Age Range | Adult |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Batteries Included? | Yes |
| Best Sellers Rank | #71 in Electronics ( See Top 100 in Electronics ) #1 in Wearable Tech Rings |
| Brand | OURA |
| Color | Rose Gold |
| Compatible with | Smartphone |
| Customer Reviews | 4.0 4.0 out of 5 stars (6,114) |
| Date First Available | 11 April 2025 |
| Display Type | No Display |
| Features | Heart Rate Monitor, Activity Tracker |
| Included Components | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Item model number | JZ90-54219-06 |
| Manufacturer | Oura |
| Meter | Accelerometer |
| Number of Items | 1 |
| Product Dimensions | 2.4 x 2.4 x 0.8 cm; 181 g |
| Shape | Round |
| Size | 6 |
| Style | Minimalist |

## Product Details

- **Battery cell composition:** Lithium Polymer
- **Connectivity technology:** Bluetooth
- **Operating system:** Android
- **Special features:** Heart Rate Monitor, Activity Tracker
- **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/51zKmnnZU8L.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/612CtvmqfsL.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/517yboOWkZL.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/719fGrAYcDL.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/713l574H8CL.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 - Rose Gold - Size 6 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
- PAVOI 14K Gold Plated Solid 925 Sterling Silver CZ Simulated Diamond Stackable Ring Eternity Bands for Women

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---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-18*