---
product_id: 698763122
title: "Oura Ring 4 - Silver - Size 15 - Size Before You Buy"
brand: "oura"
price: "€ 603.90"
currency: EUR
in_stock: true
category: "Oura"
url: https://www.desertcart.be/products/698763122-oura-ring-4-silver-size-15-size-before-you-buy
store_origin: BE
region: Belgium
---

# IP54 water resistant Advanced health metrics 8-day battery life Oura Ring 4 - Silver - Size 15 - Size Before You Buy

**Brand:** oura
**Price:** € 603.90
**Availability:** ✅ In Stock

## Summary

> 💍 Elevate your wellness game with the ring that does it all.

## Quick Answers

- **What is this?** Oura Ring 4 - Silver - Size 15 - Size Before You Buy by oura
- **How much does it cost?** € 603.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/698763122-oura-ring-4-silver-size-15-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

- • **Stay connected, stay informed:** Bluetooth syncs effortlessly with all major smartphones and health apps.
- • **Style that speaks sophistication:** Minimalist silver finish tailored to your size for a personalized fit.
- • **Power through your week with ease:** Up to 8 days of battery life with fast 80-minute wireless charging.
- • **All-day comfort, all-night insights:** Sleek stainless steel design fits seamlessly into your lifestyle.
- • **Track your heart, sleep, and stress like a pro:** Next-level health monitoring keeps you ahead of your wellness game.

## Overview

The Oura Ring 4 in silver combines cutting-edge health tracking—heart rate, sleep, and stress monitoring—with a sleek, minimalist stainless steel design. Boasting an 8-day battery life and IP54 water resistance, it offers seamless Bluetooth connectivity to all major smartphones and health apps, making it the ultimate smart ring for professionals who demand style and substance.

## Description

Free delivery and returns on eligible orders. Buy Oura Ring 4 - Silver - Size 15 - Size Before You Buy at desertcart UK.

## 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 | B0D9WV7R98 |
| Age Range Description | Adult |
| Band Colour | Silver |
| Band Material Type | Stainless Steel |
| Battery Average Life | 8 days |
| Battery Capacity | 8 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | 567 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 | Stainless Steel |
| Closure Type | Slip On |
| Colour | Silver |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone, Tablet |
| Compatible Phone Models | all current smartphone models |
| Connectivity Technology | Bluetooth |
| Controller Type | Ring |
| Country of Origin | Estonia |
| Customer Reviews | 4.2 4.2 out of 5 stars (8,773) |
| Display Type | No Display |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Dimensions | 25 x 25 x 8 millimetres |
| Item Dimensions D x W x H | 25D x 25W x 8H millimetres |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate Monitor, Sleep Duration Monitor, Stress Monitor |
| Model Name | JZ90-54217-15 |
| Model Number | JZ90-54217-15 |
| Operating System | Proprietary/Custom |
| Product Features | Advanced Health Tracking |
| Product Warranty | 3 year manufacturer warranty |
| Shape | Round |
| Sim Card Size | eSIM |
| Style Name | Minimalist |
| Supported Application | Apple Health, Google Health Connect, Natural Cycles, Flo, Strava |
| Supported Satellite Navigation System | GPS |
| Target Audience | Men |
| Warranty Type | Lifetime |
| Water Resistance Depth | 50 Metres |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP54 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery capacity:** 8 days
- **Battery cell composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity technology:** Bluetooth
- **GPS:** No GPS
- **Model name:** JZ90-54217-15
- **Operating system:** Proprietary/Custom
- **Shape:** Round
- **Special feature:** Advanced Health Tracking
- **Wireless communication standard:** Bluetooth

## Images

![Oura Ring 4 - Silver - Size 15 - Size Before You Buy - Image 1](https://m.media-amazon.com/images/I/41GjsbIPS8L.jpg)
![Oura Ring 4 - Silver - Size 15 - Size Before You Buy - Image 2](https://m.media-amazon.com/images/I/41Fdd-lX47L.jpg)
![Oura Ring 4 - Silver - Size 15 - Size Before You Buy - Image 3](https://m.media-amazon.com/images/I/41g5bwA978L.jpg)
![Oura Ring 4 - Silver - Size 15 - Size Before You Buy - Image 4](https://m.media-amazon.com/images/I/414AOMY+IfL.jpg)
![Oura Ring 4 - Silver - Size 15 - Size Before You Buy - Image 5](https://m.media-amazon.com/images/I/41UpQ-ZtUuL.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 15 - 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 15 - Charging Dock and USB-C Cable - Charges Oura Ring 4 up to 8 Days

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**Shop now:** [https://www.desertcart.be/products/698763122-oura-ring-4-silver-size-15-size-before-you-buy](https://www.desertcart.be/products/698763122-oura-ring-4-silver-size-15-size-before-you-buy)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-24*