---
product_id: 698157639
title: "Oura Ring 4 - Black - Size 12 - Size Before You Buy"
brand: "oura"
price: "3482.63 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Oura"
url: https://www.desertcart.tn/products/698157639-oura-ring-4-black-size-12-size-before-you-buy
store_origin: TN
region: Tunisia
---

# 8-day battery life 100m water resistant 80 min wireless charge Oura Ring 4 - Black - Size 12 - Size Before You Buy

**Brand:** oura
**Price:** 3482.63 DT
**Availability:** ✅ In Stock

## Summary

> 💍 Elevate your wellness game with the smartest ring on your finger.

## Quick Answers

- **What is this?** Oura Ring 4 - Black - Size 12 - Size Before You Buy by oura
- **How much does it cost?** 3482.63 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/698157639-oura-ring-4-black-size-12-size-before-you-buy)

## 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 smartphone sync:** Effortlessly integrates with iOS and Android for real-time health analytics.
- • **Track your health like a pro:** Advanced sensors monitor heart rate, sleep quality, and activity with precision.
- • **Waterproof for every adventure:** Dive in confidently with 100m water resistance—wear it rain or shine.
- • **Stay powered longer, charge faster:** Up to 8 days of battery life with quick 80-minute wireless charging.
- • **All-day comfort, all-night insights:** Sleek titanium design fits like a second skin for continuous wear.

## Overview

The Oura Ring 4 in Black, Size 12, is a cutting-edge smart ring crafted from durable titanium, designed for adults seeking discreet yet powerful health tracking. It offers advanced biometric monitoring including heart rate, sleep, and activity, with up to 8 days of battery life and fast wireless charging. Fully water resistant up to 100 meters and compatible with both iOS and Android devices, it delivers seamless app integration for detailed wellness insights—all in a sleek, modern form factor.

## Description

Free delivery and returns on eligible orders. Buy Oura Ring 4 - Black - Size 12 - Size Before You Buy at desertcart UK.

Review: Great Product - Great Product does the job on tracking sleep, heart rate, movement etc. Very easy to set up and get going. Would recommend for those that do not want to wear a smart watch.
Review: So So Happy! - I hesitated for a while before investing in this gadget. And I love my Gadgets! but after doing some homework on the competition, I decided to jump for it. First, the fit and metal colour are great, I couldn't be happier, the quality and durability is insane, i do everything with it, I rarely take it off. The connectivity to my Samsung Z Fold6 was flawless, no hiccups, plus, everything you open the app, it updates in no time. so great compatibility. Now, you need to give it time to gather data about you, of course... it will not happen overnight which is quite right, but the intel you get afterwards is great. Your body age, sleep quality, energy available, your stress, it is such a great little ring. it is a lot of money for such a small device but the value for money is worth it. I highly recommend it if you are curious and want to be nudge in the right direction for better health.

## 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 | B0D9WW4ZHX |
| Age Range Description | Adult |
| Band Colour | Black |
| Band Material Type | Titanium |
| Battery Average Life | 8 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | 331 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 |
| Closure Type | Ring |
| Colour | Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone, Tablet |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Controller Type | ring |
| Country of Origin | Estonia |
| Customer Reviews | 4.2 4.2 out of 5 stars (6,986) |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 06430060153202 |
| Human Interface Input | Buttons |
| Item Dimensions | 22 x 22 x 7 millimetres |
| Item Dimensions D x W x H | 22D x 22W x 7H millimetres |
| Manufacturer | Oura |
| Metrics Measured | accelerometer, optical heart rate sensor, other (unspecified) |
| Model Name | Oura Ring 4 - Black - Size 12 |
| Model Number | JZ90-54144-12 |
| Operating System | Android |
| Product Features | Activity Tracker |
| Shape | Round |
| Style Name | Modern |
| Supported Application | Fitness Tracker |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Warranty Type | Lifetime |
| Water Resistance Depth | 100 Metres |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery cell composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity technology:** Bluetooth
- **GPS:** No GPS
- **Model name:** Oura Ring 4 - Black - Size 12
- **Operating system:** Android
- **Shape:** Round
- **Special feature:** Activity Tracker
- **Style:** Modern
- **Wireless communication standard:** Bluetooth

## Images

![Oura Ring 4 - Black - Size 12 - Size Before You Buy - Image 1](https://m.media-amazon.com/images/I/513EeiCr+QL.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

### ⭐⭐⭐⭐⭐ Great Product
*by L***S on 23 March 2026*

Great Product does the job on tracking sleep, heart rate, movement etc. Very easy to set up and get going. Would recommend for those that do not want to wear a smart watch.

### ⭐⭐⭐⭐⭐ So So Happy!
*by M***D on 18 October 2025*

I hesitated for a while before investing in this gadget. And I love my Gadgets! but after doing some homework on the competition, I decided to jump for it. First, the fit and metal colour are great, I couldn't be happier, the quality and durability is insane, i do everything with it, I rarely take it off. The connectivity to my Samsung Z Fold6 was flawless, no hiccups, plus, everything you open the app, it updates in no time. so great compatibility. Now, you need to give it time to gather data about you, of course... it will not happen overnight which is quite right, but the intel you get afterwards is great. Your body age, sleep quality, energy available, your stress, it is such a great little ring. it is a lot of money for such a small device but the value for money is worth it. I highly recommend it if you are curious and want to be nudge in the right direction for better health.

### ⭐⭐⭐⭐⭐ Great item, very efficient at tracking
*by L***N on 8 April 2026*

I love this ring, it does everything and more that you could ever want from a fitness tracker. It also works really well alongside your Apple Watch. I would highly recommend and it was sent to me within 24 hours.

## Frequently Bought Together

- Oura Ring 4 - Black - 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
- 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.tn/products/698157639-oura-ring-4-black-size-12-size-before-you-buy](https://www.desertcart.tn/products/698157639-oura-ring-4-black-size-12-size-before-you-buy)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-21*