---
product_id: 724803596
title: "Oura Ring Generation 4 Smart Ring - Gold - Size 15 | Fits iPhone/Android | FIRST SIZE CHECK: Includes Exclusive Size Kit | Sleep Heart Rate & Fitness | Up to 8 Days Battery Life"
brand: "oura"
price: "€ 836.94"
currency: EUR
in_stock: true
reviews_count: 6
category: "Oura"
url: https://www.desertcart.hr/products/724803596-oura-ring-generation-4-smart-ring-gold-size-15-fits
store_origin: HR
region: Croatia
---

# 8 days battery life 24/7 advanced sleep & health tracking 100M water resistant titanium Oura Ring Generation 4 Smart Ring - Gold - Size 15 | Fits iPhone/Android | FIRST SIZE CHECK: Includes Exclusive Size Kit | Sleep Heart Rate & Fitness | Up to 8 Days Battery Life

**Brand:** oura
**Price:** € 836.94
**Availability:** ✅ In Stock

## Summary

> 💍 Elevate your wellness game—wear the future of health on your finger.

## Quick Answers

- **What is this?** Oura Ring Generation 4 Smart Ring - Gold - Size 15 | Fits iPhone/Android | FIRST SIZE CHECK: Includes Exclusive Size Kit | Sleep Heart Rate & Fitness | Up to 8 Days Battery Life by oura
- **How much does it cost?** € 836.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/724803596-oura-ring-generation-4-smart-ring-gold-size-15-fits)

## 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

- • **Tailored Fit Guarantee:** Exclusive sizing kit ensures your Oura Ring fits perfectly before you buy, eliminating guesswork.
- • **Effortless All-Day Wear:** Ultra-light aerospace-grade titanium ring designed for comfort, durability, and water resistance up to 100 meters.
- • **Precision Health Metrics:** Track 30+ biometrics including sleep, heart rate, stress & female health with clinical-grade accuracy.
- • **Seamless Smartphone Sync:** Compatible with iOS and Android via Bluetooth for real-time insights and personalized health coaching.
- • **Unmatched Battery Freedom:** Up to 8 days of continuous monitoring on a single charge—stay connected without interruptions.

## Overview

The Oura Ring Generation 4 in Gold is a sleek, titanium smart ring that delivers precise 24/7 health tracking across 30+ metrics including sleep, heart rate, and stress. With up to 8 days of battery life, 100M water resistance, and a custom sizing kit, it offers unmatched comfort and durability for professionals who demand seamless wellness insights on the go.

## Description

Introducing Oura Ring 4 - the next generation of smart rings that evolve. With your health as our top priority, the Oura Ring 4 features a new design made of all titanium and "Smart Sensing" that adapts to you beyond just measuring. Monitor over 30 biometrics quietly and comfortably including sleep, recovery, activity, heart health, stress and female health. With up to 8 days of battery life, you will forget you have it on

Review: ファッション性も良く、リングと対話しながら一緒に体調管理をできそう
Review: Ideal para mayor precisión de la métricas, aunque al final también se sincroniza con la app de salud que a su vez se sincroniza con el Apple Watch y siento que pierde un poco la información propia

## Features

- 【 MEASURE THE SIZE BEFORE PURCHASING 】 - The size of the Oura Ring 4th Generation differs from the general ring size. You can find the perfect size by measuring our dedicated sizing kit before purchasing. In addition, you will receive an desertcart credit of 1,500 yen for later purchase of Oura Ring
- 【 EXCEPTIONAL ACCURACY 】 - Oura tracks over 20 health metrics including sleep, activity, stress, heart health, and female health metrics. Advanced sensing technology adapts to user-specific physiological functions, providing precise and continuous data for 24 hours
- 【 LONG LASTING BATTERY 】 - Up to 8 days battery life, no screen, no vibration, Oura Ring 4 gives you mindfulness. From working out to a night out, you'll feel free to forget you're wearing it. Until you start getting compliments
- 【24 HOUR WEAR DESIGN】 - The updated design of Oura Ring 4 is more comfortable, fits more than ever before and 100M water resistant. One of the toughest materials on the planet, aerospace grade titanium is gentle on sensitive skin and unsurpassed durability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WVJGYK |
| Additional Features | Activity Tracker |
| Age Range Description | Adult |
| Amazon Bestseller | #2,298 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Activity & Fitness Trackers |
| Band Color | Gold |
| Battery Average Life | 8 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Brand | OURA |
| Built-In Media | 1 x Oura Ring Gen 4, 1 x Quick Start Guide, 1 x main unit charger, Charging Cable, User Manual |
| Case Material Type | Titanium |
| Color | gold |
| Compatible Devices | Smartphone, Tablet |
| Compatible Phone Models | Android Devices, iOS Devices |
| Connectivity Technology | Bluetooth, USB |
| Country of Origin | Estonia |
| Customer Reviews | 4.2 4.2 out of 5 stars (1,008) |
| GPS Geotagging Functionality | No GPS |
| Global Trade Identification Number | 06430060153356 |
| Human Interface Input | Unknown |
| Item Dimensions | 28 x 28 x 7 mm |
| Item Dimensions D x W x H | 28D x 28W x 7H mm |
| Manufacturer | Oura |
| Metrics Measured | Blood Oxygen (SpO2), Heart Rate, Sleep Duration, Stress |
| Model Number | JZ90-54216-15 |
| Shape | Round |
| Target Audience | Unisex Adults |
| Warranty Description | 2 Year Warranty |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Connectivity Technology:** Bluetooth, USB
- **GPS:** No GPS
- **Special Feature:** Activity Tracker
- **Wireless Communication Standard:** Bluetooth

## Images

![Oura Ring Generation 4 Smart Ring - Gold - Size 15 | Fits iPhone/Android | FIRST SIZE CHECK: Includes Exclusive Size Kit | Sleep Heart Rate & Fitness | Up to 8 Days Battery Life - Image 1](https://m.media-amazon.com/images/I/71Uy-H1bhnL.jpg)
![Oura Ring Generation 4 Smart Ring - Gold - Size 15 | Fits iPhone/Android | FIRST SIZE CHECK: Includes Exclusive Size Kit | Sleep Heart Rate & Fitness | Up to 8 Days Battery Life - Image 2](https://m.media-amazon.com/images/I/71c6LBhv1EL.jpg)
![Oura Ring Generation 4 Smart Ring - Gold - Size 15 | Fits iPhone/Android | FIRST SIZE CHECK: Includes Exclusive Size Kit | Sleep Heart Rate & Fitness | Up to 8 Days Battery Life - Image 3](https://m.media-amazon.com/images/I/71KMSlDCVDL.jpg)
![Oura Ring Generation 4 Smart Ring - Gold - Size 15 | Fits iPhone/Android | FIRST SIZE CHECK: Includes Exclusive Size Kit | Sleep Heart Rate & Fitness | Up to 8 Days Battery Life - Image 4](https://m.media-amazon.com/images/I/71IjlAWznVL.jpg)
![Oura Ring Generation 4 Smart Ring - Gold - Size 15 | Fits iPhone/Android | FIRST SIZE CHECK: Includes Exclusive Size Kit | Sleep Heart Rate & Fitness | Up to 8 Days Battery Life - Image 5](https://m.media-amazon.com/images/I/714Mg+LCK9L.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

### ⭐⭐⭐⭐ Review
*by サ***ー on September 2, 2025*

ファッション性も良く、リングと対話しながら一緒に体調管理をできそう

### ⭐⭐⭐⭐⭐ Review
*by K***@ on December 11, 2025*

Ideal para mayor precisión de la métricas, aunque al final también se sincroniza con la app de salud que a su vez se sincroniza con el Apple Watch y siento que pierde un poco la información propia

### ⭐⭐⭐⭐⭐ Review
*by S***N on March 19, 2026*

Bought it for my wife’s bday and she’s obsessed. The data fields are precise and informative with context, fertility function is super helpful, the 14k gold has an excellent shine, definitely an amazing wearable. Her fav features are the fertility and stress indicators.

## Frequently Bought Together

- Oura Ring 4 - Gold - 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
- sylacor Ring Cover for Oura Ring Gen 4/ Gen 3, Anti-Scratch Elastic Silicone Oura Ring Case Protector for Men Women Working Out Gym
- ZOOROO 3 Pack Cover Compatible with Oura Ring Gen 4/Oura Ring Gen 3 Horizon/Gen 3 Heritage, Surport Charging with Cover on, Anti-Scratch TPU Protector for Men Women Workout Gym

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**Shop now:** [https://www.desertcart.hr/products/724803596-oura-ring-generation-4-smart-ring-gold-size-15-fits](https://www.desertcart.hr/products/724803596-oura-ring-generation-4-smart-ring-gold-size-15-fits)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-22*