---
product_id: 722393161
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: "$U35445"
currency: UYU
in_stock: true
category: "Oura"
url: https://www.desertcart.uy/products/722393161-oura-ring-4-smart-ring-size-first-with-oura-ring
store_origin: UY
region: Uruguay
---

# 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:** $U35445
**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?** $U35445 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/722393161-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 & Thrive:** Enjoy up to 8 days of uninterrupted battery life—no screens, no distractions, just pure focus.
- • **Data-Driven Wellness:** Track 30+ biometrics including sleep, heart rate, stress, and women’s health with Smart Sensing tech.
- • **Exclusive Oura Membership:** Get your first month free and unlock personalized insights with the Oura App’s premium membership.
- • **Precision Fit, Zero Guesswork:** Size yourself perfectly with the exclusive Oura Ring 4 Sizing Kit before you buy.
- • **Sleek, Durable, All-Day Comfort:** Crafted from lightweight titanium, water-resistant and designed for 24/7 wear—even for sensitive skin.

## Overview

The Oura Ring 4 is a cutting-edge smart ring designed for professionals who demand precision and style. It offers advanced health tracking with over 30 biometric sensors, including sleep, heart rate, and stress monitoring, powered by adaptive Smart Sensing technology. With a sleek, water-resistant titanium build and up to 8 days of battery life, it’s engineered for continuous 24/7 wear. The purchase includes a sizing kit for a perfect fit and a free first month of Oura membership, delivering personalized wellness insights through the Oura App.

## Description

Buy Oura Ring 4 - Black - Size 8 - Smart Wearable | Size First with Oura 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Age Range | Adult |
| Color | Black |
| Size | 8 |
| Style | Modern |
| Compatible with | Smartphone, Tablet |
| Display Type | No Display |
| Shape | Ring |
| Meter | [MULTI] |
| Number of Items | 1 |
| Features | Activity Tracker |
| Included Components | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Batteries Included? | Yes |
| Brand | OURA |
| Manufacturer | Oura |
| Item model number | JZ90-54144-08 |
| Product Dimensions | 2.5 x 2.5 x 0.7 cm; 181 g |
| ASIN | B0D9WVR866 |

## Product Details

- **Operating system:** Proprietary Operating System
- **Special features:** Activity Tracker
- **Connectivity technology:** Bluetooth, Wi-Fi, Proprietary Wireless Protocol
- **Wireless communication standard:** Bluetooth
- **Battery cell composition:** Lithium Polymer

## 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/41R3LFQEN6L.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/51CzPCL9TxL.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/51QDuTKnNyL.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/51l2HN703bL.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/51nCNxSwfYL.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 - Black - Size 8 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
- sylacor Ring Cover for Oura Ring Gen 4/ Gen 3, Anti-Scratch Elastic Silicone Oura Ring Case Protector for Men Women Working Out Gym

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**Shop now:** [https://www.desertcart.uy/products/722393161-oura-ring-4-smart-ring-size-first-with-oura-ring](https://www.desertcart.uy/products/722393161-oura-ring-4-smart-ring-size-first-with-oura-ring)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-22*