---
product_id: 706479072
title: "OURA Ring 4 - Silver - Size 14 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life"
brand: "oura"
price: "€ 925.74"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.hr/products/706479072-oura-ring-4-silver-size-14-smart-ring-size-first
store_origin: HR
region: Croatia
---

# Up to 8 days battery life Continuous heart rate monitoring Advanced sleep & activity tracking OURA Ring 4 - Silver - Size 14 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life

**Brand:** oura
**Price:** € 925.74
**Availability:** ❌ Out of Stock

## Summary

> 💍 Elevate your wellness game with the ring that knows you best.

## Quick Answers

- **What is this?** OURA Ring 4 - Silver - Size 14 - Smart Ring | Size First Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life by oura
- **How much does it cost?** € 925.74 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/706479072-oura-ring-4-silver-size-14-smart-ring-size-first)

## 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

- • **Power Through Your Week:** Up to 8 days of battery life means less charging, more living.
- • **Your Health, Your Style:** Multiple finishes and sizes let you express your unique vibe.
- • **Wear It All Day, Every Day:** Sleek, lightweight design ensures comfort without compromise.
- • **Unlock Deep Health Insights:** Track heart rate, sleep quality, and daily activity with clinical precision.
- • **Effortless Wireless Charging:** Conveniently recharge without cables and stay powered up on the go.

## Overview

The OURA Ring 4 in Silver is a cutting-edge smart ring designed for continuous health monitoring, including heart rate, sleep, and activity tracking. With up to 8 days of battery life and wireless charging, it offers seamless integration with a smartphone app for detailed analytics, all wrapped in a stylish, comfortable design available in multiple sizes.

## Description

Full description not available

## 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 | B0D9WVBBZ4 |
| Additional Features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Age Range Description | Adult |
| Band Color | Black |
| Band Material Type | Stainless Steel |
| Battery Average Life | 8 days |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #33 in Electronics ( See Top 100 in Electronics ) #1 in Smart Rings |
| Brand | OURA |
| Built-In Media | Oura Ring 4, Oura Ring 4 Charger, USB Cable, Information Booklet, Quick Start Guide |
| Case Material Type | Stainless Steel |
| Closure Type | Slip On |
| Color | Silver |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone |
| Compatible Phone Models | Android Devices, iOS Devices |
| Connectivity Technology | Bluetooth |
| Controller Type | Ring |
| Customer Reviews | 4.1 out of 5 stars 7,825 Reviews |
| Display Type | No Display |
| GPS | GPS Via Smartphone |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Human Interface Input | Unknown |
| Item Dimensions | 0.94 x 0.94 x 0.31 inches |
| Item Height | 0.8 centimeters |
| Manufacturer | Oura |
| Metrics Measured | Body Temperature, Menstrual Cycle, Sleep Duration, Stress |
| Model Name | JZ90-54217-14 |
| Model Number | JZ90-54217-14 |
| Operating System | Proprietary/Custom |
| Shape | Round |
| Special Feature | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Sport Type | Fitness |
| Style Name | Minimalist |
| Supported Application | Fitness Tracker |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Standard |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP54 |
| Wearable Computer Type | Smart Ring |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |

## Product Details

- **Operating system:** Proprietary/Custom
- **Special feature:** Activity Tracker
- **Connectivity technology:** Bluetooth
- **Wireless communication standard:** Bluetooth
- **Battery cell composition:** Lithium Polymer
- **GPS:** No GPS
- **Shape:** Round
- **Brand:** OURA
- **Model name:** Oura Ring 4 - Silver - Size 14
- **Style:** Minimalist

## Images

![OURA Ring 4 - Silver - Size 14 - Smart Ring | Size First 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/5155uTN9BPL.jpg)
![OURA Ring 4 - Silver - Size 14 - Smart Ring | Size First 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/51Hh6q3nxxL.jpg)
![OURA Ring 4 - Silver - Size 14 - Smart Ring | Size First 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/71ioEwzfYZL.jpg)
![OURA Ring 4 - Silver - Size 14 - Smart Ring | Size First 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/613EYvr-lAL.jpg)
![OURA Ring 4 - Silver - Size 14 - Smart Ring | Size First 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/61dtM3Gy4UL.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

### ⭐⭐⭐⭐⭐ Excellent and v pleased
*by J***B on 16 May 2025*

Wow. Game changer although I am a little obsessed. It is more comfortable to wear and more accurate than my Fitbit inspire 2 as well as catching more data. Does it know when you are bad to your body absolutely yes. So it keeps you on track and today did recognise I was a bit poorly. Really happy with the purchase.

### ⭐⭐⭐⭐⭐ Amazing
*by M***K on 17 May 2025*

Amazing

### ⭐⭐⭐⭐⭐ You won’t regret buying this Oura ring!
*by L***N on 28 March 2025*

Loving it! I’ve only had it 2 weeks so far but love all the data, and using that to understand what’s going on in my body.

## 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

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**Shop now:** [https://www.desertcart.hr/products/706479072-oura-ring-4-silver-size-14-smart-ring-size-first](https://www.desertcart.hr/products/706479072-oura-ring-4-silver-size-14-smart-ring-size-first)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-18*