---
product_id: 722393173
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: "3746 kr"
currency: DKK
in_stock: true
category: "Oura"
url: https://www.desertcart.dk/products/722393173-oura-ring-4-smart-ring-size-first-with-oura-ring
store_origin: DK
region: Denmark
---

# 8 days battery life Water resistant up to 100m Tracks 30+ biometrics 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:** 3746 kr
**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?** 3746 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/722393173-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:** Up to 8 days of battery life means no daily charging interruptions—focus on living, not charging.
- • **Precision Fit, Zero Guesswork:** Size yourself perfectly with the Oura Ring 4 Sizing Kit and get credit towards your ring purchase.
- • **Titanium Tough, Feather Light:** Crafted from ultra-durable, lightweight titanium for comfort and resilience in any environment.
- • **Seamless Style Meets Smart Tech:** Discreet, sleek design fits every occasion, letting you track health without the bulk or buzz.
- • **All-Day, All-Night Health Insights:** Monitor sleep, heart rate, stress, activity, and women’s health with Smart Sensing tech adapting to you 24/7.

## Overview

The Oura Ring 4 is a cutting-edge smart ring made from durable titanium, designed for 24/7 wear with water resistance up to 100 meters. It tracks over 30 biometrics including sleep, heart rate, stress, and women’s health metrics using advanced Smart Sensing technology. With up to 8 days of battery life and a sizing kit to ensure the perfect fit, it offers seamless health insights without interrupting your lifestyle.

## Description

Oura Ring 4 - Silver - Size 14 - Smart Wearable | Size First with Oura 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life | Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible : desertcart.ae: Electronics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WVBBZ4 |
| Additional Features | Advanced Health Tracking |
| Age Range Description | Adult |
| Band Color | Black |
| Band Material Type | Stainless Steel |
| Battery Average Life | 8 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | #947 in Electronics ( See Top 100 in Electronics ) #5 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 | Stainless Steel |
| Closure Type | Slip On |
| Color | Silver |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone, Tablet |
| Compatible Phone Models | All current iPhone models, all current Samsung Galaxy models, all current Android models |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Ring |
| Country of Origin | Estonia |
| Customer Reviews | 4.0 out of 5 stars 8,360 Reviews |
| Display Type | Analog |
| GPS | No GPS |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Dimensions | 24 x 24 x 8 millimeters |
| Item Dimensions D x W x H | 24D x 24W x 8H millimeters |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate, Sleep Duration, Activity, Stress, Heart Health |
| Model Name | JZ90-54217-14 |
| Model Number | JZ90-54217-14 |
| Operating System | Proprietary/Custom |
| Operating system | Proprietary/Custom |
| Shape | Round |
| Special features | Advanced Health Tracking |
| Sport Type | Fitness |
| Style Name | Modern |
| Supported Application | Fitness Tracker |
| Supported Satellite Navigation System | GPS |
| Target Audience | Men |
| Warranty Description | 2 year manufacturer warranty |
| Warranty Type | Limited |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP54 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |

## Product Details

- **Battery cell composition:** Lithium Polymer
- **Connectivity technology:** Bluetooth
- **Operating system:** Proprietary/Custom
- **Special features:** Advanced Health Tracking
- **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/51ul5++ZdWL.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/51zzz4L0duL.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/61l941sr6FL.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/7102nfIc79L.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/61zUDFM6dbL.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 - Silver - Size 14 - 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.dk/products/722393173-oura-ring-4-smart-ring-size-first-with-oura-ring](https://www.desertcart.dk/products/722393173-oura-ring-4-smart-ring-size-first-with-oura-ring)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-08-20*