---
product_id: 661324824
title: "Ring 4 - Black - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible"
brand: "oura"
price: "2495.38 DT"
currency: TND
in_stock: true
category: "Oura"
url: https://www.desertcart.tn/products/661324824-ring-4-black-size-10-sleep-activity-women-s-health
store_origin: TN
region: Tunisia
---

# 8 days battery life 100m water resistant 50+ health metrics tracked Ring 4 - Black - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible

**Brand:** oura
**Price:** 2495.38 DT
**Availability:** ✅ In Stock

## Summary

> 💍 Own your health, silently and stylishly.

## Quick Answers

- **What is this?** Ring 4 - Black - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible by oura
- **How much does it cost?** 2495.38 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/661324824-ring-4-black-size-10-sleep-activity-women-s-health)

## 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

- • **Uninterrupted Power:** Up to 8 days of battery life means you stay focused on living, not charging.
- • **Perfect Fit Guarantee:** Exclusive sizing kit ensures your Oura Ring fits like a second skin — no surprises, just comfort.
- • **Effortless All-Day Wear:** Sleek, lightweight titanium design with water resistance up to 100 meters keeps up with your active lifestyle.
- • **Precision Health Tracking:** Smart Sensing adapts to your unique biometrics for 50+ metrics including sleep, stress, and women’s health.
- • **Seamless Multi-Ring Style:** Switch between multiple Oura Ring finishes effortlessly via the app to match your mood or outfit.

## Overview

The Oura Ring 4 is a cutting-edge smart ring crafted from titanium, designed to monitor over 50 health metrics including sleep, activity, heart health, and women’s health. Featuring Smart Sensing technology, it adapts to your body for precise insights. With up to 8 days of battery life, 100m water resistance, and a unique sizing system, it offers a comfortable, durable, and personalized wearable experience compatible with iOS and Android devices.

## Description

Introducing Oura Ring 4: the latest evolution of the revolutionary smart ring. Oura Ring 4 brings you closer to what matters most — your health. The updated all-titanium design is powered by Smart Sensing, a new sensing platform that doesn’t just measure your biometrics, it adapts to you, providing insights into over 50 health metrics including sleep, readiness, activity, heart health, stress, metabolic health, and women’s health. Oura Ring quietly and comfortably monitors your health and with 5 to 8 days of battery life — you can forget it’s even on. With multi-ring support, change Oura Ring 4 styles as easily as changing your outfit. If you have two or more Oura Ring 4 styles, you can now switch easily between different finishes in the Oura App.

## Features

- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, 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
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- 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
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WV1TPJ |
| Additional Features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Age Range Description | Adult |
| Band Material Type | Metal |
| Battery Average Life | 5 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #195 in Electronics ( See Top 100 in Electronics ) #3 in Smart Rings #10 in Activity & Fitness Trackers |
| Brand | OURA |
| Built-In Media | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Closure Type | Ring |
| Color | Black |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Compatible with iOS and Android devices |
| Connectivity Technology | Bluetooth |
| Controller Type | Gesture Recognition / Biometric Sensors |
| Customer Reviews | 4.0 4.0 out of 5 stars (8,662) |
| Display Type | No Display |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Global Trade Identification Number | 06430060153189 |
| Human Interface Input | Buttons |
| Item Dimensions | 1.06 x 1.06 x 0.28 inches |
| Item Weight | 0.11 kg |
| Manufacturer | Oura |
| Metrics Measured | Body Temperature, Menstrual Cycle, Sleep Duration, Stress |
| Model Name | Anillo 4 |
| Model Number | JZ90-54144-10 |
| Operating System | i_os, android |
| Shape | Round |
| Sport Type | Multi-Sports |
| Style Name | Metallic |
| Supported Application | Fitness Tracker, Sleep Monitor, Heart Rate Monitor, Multisport Tracker, Health, Wellness |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Limited |
| Water Resistance Depth | 100 meters |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless Provider | Unlocked |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity Technology:** Bluetooth
- **GPS:** GPS Via Smartphone
- **Model Name:** Anillo 4
- **Operating System:** i_os, android
- **Shape:** Round
- **Special Feature:** Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
- **Style:** Metallic
- **Wireless Communication Standard:** Bluetooth

## Images

![Ring 4 - Black - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible - Image 1](https://m.media-amazon.com/images/I/51nCNxSwfYL.jpg)

## Available Options

This product comes in different **Color, Size, Style** 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 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
- 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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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-01*