---
product_id: 661524053
title: "Oura Ring 4 - Silver - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible"
brand: "oura"
price: "€ 657.70"
currency: EUR
in_stock: true
reviews_count: 13
category: "Oura"
url: https://www.desertcart.hr/products/661524053-oura-ring-4-silver-size-10-sleep-activity-women-s
store_origin: HR
region: Croatia
---

# 8 days battery life Water resistant 100m Tracks 50+ health metrics Oura Ring 4 - Silver - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible

**Brand:** oura
**Price:** € 657.70
**Availability:** ✅ In Stock

## Summary

> 💍 Own your health journey with the smartest ring on your finger

## Quick Answers

- **What is this?** Oura Ring 4 - Silver - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible by oura
- **How much does it cost?** € 657.70 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/661524053-oura-ring-4-silver-size-10-sleep-activity-women-s)

## 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

- • **Extended Freedom:** Up to 8 days battery life means less charging, more living
- • **Tailored Fit Guarantee:** Unique sizing kit ensures your perfect ring fit before you buy
- • **Effortless All-Day Wear:** Sleek titanium design that's lightweight, durable, and water resistant
- • **Precision Health Insights:** Smart Sensing adapts to your unique biometrics for 24/7 accuracy
- • **Holistic Wellness Tracking:** Sleep, activity, stress, heart & women’s health metrics all in one ring

## Overview

The Oura Ring 4 is a cutting-edge smart ring crafted from titanium, designed for continuous 24/7 health monitoring. It tracks over 50 biometric metrics including sleep stages, heart health, stress, and women’s health, powered by adaptive Smart Sensing technology. With up to 8 days of battery life, water resistance up to 100 meters, and a unique sizing system, it offers a comfortable, durable, and personalized wellness experience compatible with both Android and iOS devices.

## Description

Introducing Oura Ring 4: the latest evolution of the revolutionary smart ring. Oura Ring 4 brings you closer to what matters most — your health. The updated all-titanium design is powered by Smart Sensing, a new sensing platform that doesn’t just measure your biometrics, it adapts to you, providing insights into over 50 health metrics including sleep, readiness, activity, heart health, stress, metabolic health, and women’s health. Oura Ring quietly and comfortably monitors your health and with 5 to 8 days of battery life — you can forget it’s even on. With multi-ring support, change Oura Ring 4 styles as easily as changing your outfit. If you have two or more Oura Ring 4 styles, you can now switch easily between different finishes in the Oura App.

## Features

- ACCURACY - SMART SENSING - Oura tracks over 50 health metrics, 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
- ACCURATE SIZING ESSENTIAL - Oura Ring 4 uses unique sizing different from standard jewelry rings; use the Oura Ring 4 Sizing Kit to find your perfect fit before purchasing
- 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
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Membership is tied to your account via the Oura App, not your physical ring
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping
- 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 | B0D9WT1S2T |
| Additional Features | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Age Range Description | Adult |
| Band Color | Silver |
| Band Material Type | Silver |
| Battery Average Life | 5 days |
| Battery Cell Composition | Lithium Polymer |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Best Sellers Rank | #19 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 | Titanium |
| 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 | 4.0 out of 5 stars 7,405 Reviews |
| Display Type | No Display |
| GPS | GPS Via Smartphone |
| GPS Geotagging Functionality | GPS Via Smartphone |
| Human Interface Input | Unknown |
| Item Dimensions | 1.06 x 1.06 x 0.28 inches |
| Item Weight | 180 Grams |
| Manufacturer | Oura |
| Metrics Measured | Body Temperature, Menstrual Cycle, Sleep Duration, Stress |
| Model Name | Oura Ring 4 |
| Model Number | JZ90-54217-10 |
| Operating System | iOS, Android |
| RAM Memory Installed | 16 MB |
| Shape | Round |
| Special Feature | Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight |
| Style Name | Metallic |
| Supported Application | Fitness Tracker |
| Supported Satellite Navigation System | GPS |
| Target Audience | Unisex Adults |
| Warranty Description | 1 Year Manufacturer |
| Warranty Type | Standard/Full |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Wearable Computer Type | Smart Ring |
| Wireless Communication Standard | Bluetooth |
| Wireless Compability | Bluetooth |

## Product Details

- **Battery Cell Composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity Technology:** Bluetooth
- **GPS:** GPS Via Smartphone
- **Model Name:** Oura Ring 4
- **Operating System:** iOS, Android
- **Shape:** Round
- **Special Feature:** Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
- **Style:** Metallic
- **Wireless Communication Standard:** Bluetooth

## Images

![Oura Ring 4 - Silver - Size 10 - Sleep, Activity, Women’s Health, AI Advisor, Up to 8 Days of Battery Life, Size Before You Buy, Android & iOS Compatible - Image 1](https://m.media-amazon.com/images/I/51ul5++ZdWL.jpg)

## Available Options

This product comes in different **Color, Size, Style** 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 K***H on February 20, 2026*



### ⭐⭐⭐⭐⭐ Review
*by A***K on June 13, 2025*



### ⭐ Review
*by K***S on June 7, 2025*



## Frequently Bought Together

- Oura Ring 4 - Silver - 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
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- PAVOI 14K Gold Plated Solid 925 Sterling Silver CZ Simulated Diamond Stackable Ring Eternity Bands for Women

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**Shop now:** [https://www.desertcart.hr/products/661524053-oura-ring-4-silver-size-10-sleep-activity-women-s](https://www.desertcart.hr/products/661524053-oura-ring-4-silver-size-10-sleep-activity-women-s)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-16*