---
product_id: 717711102
title: "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: "₩1254086"
currency: KRW
in_stock: true
category: "Oura"
url: https://www.desertcart.kr/products/717711102-ring-4-smart-ring-size-first-with-oura-ring-4
store_origin: KR
region: South Korea
---

# 8 days battery life 30+ biometric sleep & health metrics Water-resistant titanium build 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:** ₩1254086
**Availability:** ✅ In Stock

## Summary

> 💍 Own your health, stealthily and stylishly.

## Quick Answers

- **What is this?** 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?** ₩1254086 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/717711102-ring-4-smart-ring-size-first-with-oura-ring-4)

## 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 & Live Freely:** Up to 8 days of battery life means no daily charging distractions—focus on your life, not your device.
- • **Size First, Perfect Fit:** Use the Oura Sizing Kit to ensure your ring fits flawlessly before purchase—no guesswork, just confidence.
- • **Exclusive Oura Membership:** Get your first month free and unlock personalized insights with the Oura app—your wellness journey just got smarter.
- • **Titanium Tough, Feather Light:** Durable yet ultra-comfortable, designed for 24/7 wear with water resistance and skin-friendly materials.
- • **All-Day, All-Night Smart Sensing:** Track 30+ biometrics including sleep, heart rate, stress, and women’s health with adaptive, continuous accuracy.

## Overview

The Oura Ring 4 is a minimalist, all-titanium smart ring designed for continuous 24/7 wear. It tracks over 30 health metrics including sleep, heart rate, and stress with adaptive Smart Sensing technology. Featuring up to 8 days of battery life and water resistance, it offers a seamless, screen-free experience. The purchase includes a sizing kit for a perfect fit and a free first month of Oura membership for personalized wellness insights.

## Description

Oura Ring 4 - Stealth - Size 10 - 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

## 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 | B0D9WVKWXN |
| Additional Features | smart detection |
| Age Range Description | Adult |
| Band Color | Stealth |
| Band Material Type | Titanium |
| Battery Average Life | 5 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #11,624 in Electronics ( See Top 100 in Electronics ) #42 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 | No Closure |
| Color | Stealth |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | all current iPhone models, all current Android models |
| Connectivity Technology | Bluetooth |
| Country of Origin | Estonia |
| Customer Reviews | 4.1 4.1 out of 5 stars (6,977) |
| Display Type | Analog |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Touchscreen |
| Item Dimensions | 24 x 24 x 8 millimeters |
| Item Dimensions D x W x H | 24D x 24W x 8H millimeters |
| Item Weight | 6.3 Ounces |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate Monitor, Sleep Monitor |
| Model Name | Oura Ring 4 - Stealth - Size 10 |
| Model Number | JZ90-54218-10 |
| Operating System | i_os, android |
| Shape | Round |
| Style Name | Minimalist |
| Supported Application | Application Oura |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Unit Count | 1.0 Count |
| Warranty Description | 2 year manufacturer warranty |
| Warranty Type | Limited |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery cell composition:** Lithium Polymer
- **Connectivity technology:** Bluetooth
- **Operating system:** i_os, android
- **Special features:** smart detection
- **Wireless communication standard:** Bluetooth

## Images

![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/51-7ivDG+6L.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 - Stealth - 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
- Oura Ring 4 Charger - Size 10 - Charging Dock and USB-C Cable - Charges Oura Ring 4 up to 8 Days
- 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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**Shop now:** [https://www.desertcart.kr/products/717711102-ring-4-smart-ring-size-first-with-oura-ring-4](https://www.desertcart.kr/products/717711102-ring-4-smart-ring-size-first-with-oura-ring-4)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-05-18*