---
product_id: 661766709
title: "Oura Ring 4 - Silver - Size 7 - Size Before You Buy"
brand: "oura"
price: "€ 641.36"
currency: EUR
in_stock: true
reviews_count: 10
category: "Oura"
url: https://www.desertcart.fr/products/661766709-oura-ring-4-silver-size-7-size-before-you-buy
store_origin: FR
region: France
---

# 8-day battery life custom titanium sizing 50+ health metrics tracked Oura Ring 4 - Silver - Size 7 - Size Before You Buy

**Brand:** oura
**Price:** € 641.36
**Availability:** ✅ In Stock

## Summary

> 💡 Oura Ring 4: Your health’s smartest sidekick, worn like a ring.

## Quick Answers

- **What is this?** Oura Ring 4 - Silver - Size 7 - Size Before You Buy by oura
- **How much does it cost?** € 641.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/661766709-oura-ring-4-silver-size-7-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

- • **Effortless All-Day Wear:** Sleek, lightweight titanium design with no screens or vibrations—wear it anywhere, anytime.
- • **Power Through Your Week:** Up to 8 days of battery life means less charging, more living.
- • **Deep Health Insights 24/7:** Tracks over 50 biometric metrics including sleep, stress, heart, and women’s health for a holistic wellness view.
- • **Exclusive Oura Membership:** First month free with purchase; unlock personalized insights and trends via the Oura App.
- • **Precision Fit, No Guesswork:** Unique sizing kit ensures your Oura Ring 4 fits perfectly—comfort meets accuracy.

## Overview

The Oura Ring 4 is a cutting-edge smart ring crafted from titanium, designed to deliver continuous, adaptive health tracking across 50+ metrics including sleep, activity, stress, and heart health. Featuring a unique sizing system for a perfect fit, it offers up to 8 days of battery life and integrates seamlessly with the Oura App membership for personalized wellness insights. Ideal for professionals seeking discreet, data-driven health optimization.

## 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.

Review: ⭐⭐⭐⭐⭐ 5/5 – Game-changer for my fitness and wellbeing - I work out 5 days a week, and my Oura Ring Gen 4 has been an absolute game-changer for my routine and recovery. The sleep tracking alone has helped me understand how my body actually recovers, not just how hard I train. Seeing my sleep quality, readiness, and recovery metrics every morning has completely changed how I plan my workouts. What really stands out is how seamlessly it tracks my overall wellbeing—from sleep stages and recovery to daily readiness and trends over time. It’s helped me dial in better habits, know when to push hard, and when to prioritize rest. The insights feel meaningful and actionable, not just data for data’s sake. On top of that, it’s comfortable, unobtrusive, and easy to wear 24/7. The battery life is great, it runs easily for about 6-7 days with one full charge, plus it charges pretty quickly. If you’re serious about training, recovery, and long-term health, this ring is 100% worth it. I honestly can’t imagine my routine without it now. 💪
Review: Amazing product & customer support service!!!! - I absolutely love this ring and all it offers. I’ve recommended it to everyone who has asked about it in the 11 months I’ve been wearing it (24/7). I know at least one person who has purchased one based off of my recommendation. Lately, within just the last few weeks, I’ve noticed the battery life has decreased sufficiently. Going from 5-6 days between charges to 2-3 days. Then the last week, I’ve begun having connectivity issues. While frustrating, I love this ring. So much so that I was seriously considering buying another one. But that $400.00 price tag is steep. Today I decided to submit a question for help through the app. Within 5 minutes tops, the virtual assistant determined I was indeed having issues, confirmed the ring I have is in stock and informed me that a replacement would be shipped with arrival time at 1-2 weeks. I am just under the year (purchased 4/8/2025 and today is 3/4/2026) but that was unexpected and honestly, amazing!!! I am so impressed. Enough so, I came to desertcart to write a review (which I never do). I will continue to recommend this product to anyone and everyone who asks!!!

## Features

- 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
- OURA MEMBERSHIP - First month of membership is included with purchase, for new members only. Subscription is 5.99/mo afterwards. Or opt for the annual prepaid option for 69.99. Membership is tied to your account via the Oura App, not your physical ring
- 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
- 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
- HSA/FSA ELIGIBLE - We can accept HSA or FSA funds for the following: Oura Ring, additional chargers, and shipping

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D9WW6RPJ |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Best Sellers Rank | #53 in Electronics ( See Top 100 in Electronics ) #1 in Smart Rings |
| Customer Reviews | 4.0 4.0 out of 5 stars (2,452) |
| Date First Available | October 3, 2024 |
| Item Weight | 6.3 ounces |
| Item model number | JZ90-54217-07 |
| Manufacturer | Oura |
| Memory Storage Capacity | 4 GB |
| Product Dimensions | 0.94 x 0.94 x 0.28 inches |
| Ram Memory Installed Size | 512 KB |

## Product Details

- **Battery Capacity:** 16
- **Battery Cell Composition:** Lithium Polymer
- **Brand:** OURA
- **Connectivity Technology:** Bluetooth
- **GPS:** GPS Via Smartphone
- **Memory Storage Capacity:** 4 GB
- **Operating System:** Wear OS 2.2
- **Shape:** Round
- **Special Feature:** Activity Tracker, Cycle Tracking, Daily Workout Memory, Lightweight
- **Wireless Communication Standard:** Bluetooth

## Images

![Oura Ring 4 - Silver - Size 7 - Size Before You Buy - Image 1](https://m.media-amazon.com/images/I/51ul5++ZdWL.jpg)
![Oura Ring 4 - Silver - Size 7 - Size Before You Buy - Image 2](https://m.media-amazon.com/images/I/51zzz4L0duL.jpg)
![Oura Ring 4 - Silver - Size 7 - Size Before You Buy - Image 3](https://m.media-amazon.com/images/I/71DARsfmjCL.jpg)
![Oura Ring 4 - Silver - Size 7 - Size Before You Buy - Image 4](https://m.media-amazon.com/images/I/713l574H8CL.jpg)
![Oura Ring 4 - Silver - Size 7 - Size Before You Buy - Image 5](https://m.media-amazon.com/images/I/7102nfIc79L.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

### ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ 5/5 – Game-changer for my fitness and wellbeing
*by C***H on February 28, 2026*

I work out 5 days a week, and my Oura Ring Gen 4 has been an absolute game-changer for my routine and recovery. The sleep tracking alone has helped me understand how my body actually recovers, not just how hard I train. Seeing my sleep quality, readiness, and recovery metrics every morning has completely changed how I plan my workouts. What really stands out is how seamlessly it tracks my overall wellbeing—from sleep stages and recovery to daily readiness and trends over time. It’s helped me dial in better habits, know when to push hard, and when to prioritize rest. The insights feel meaningful and actionable, not just data for data’s sake. On top of that, it’s comfortable, unobtrusive, and easy to wear 24/7. The battery life is great, it runs easily for about 6-7 days with one full charge, plus it charges pretty quickly. If you’re serious about training, recovery, and long-term health, this ring is 100% worth it. I honestly can’t imagine my routine without it now. 💪

### ⭐⭐⭐⭐⭐ Amazing product & customer support service!!!!
*by K***. on March 4, 2026*

I absolutely love this ring and all it offers. I’ve recommended it to everyone who has asked about it in the 11 months I’ve been wearing it (24/7). I know at least one person who has purchased one based off of my recommendation. Lately, within just the last few weeks, I’ve noticed the battery life has decreased sufficiently. Going from 5-6 days between charges to 2-3 days. Then the last week, I’ve begun having connectivity issues. While frustrating, I love this ring. So much so that I was seriously considering buying another one. But that $400.00 price tag is steep. Today I decided to submit a question for help through the app. Within 5 minutes tops, the virtual assistant determined I was indeed having issues, confirmed the ring I have is in stock and informed me that a replacement would be shipped with arrival time at 1-2 weeks. I am just under the year (purchased 4/8/2025 and today is 3/4/2026) but that was unexpected and honestly, amazing!!! I am so impressed. Enough so, I came to Amazon to write a review (which I never do). I will continue to recommend this product to anyone and everyone who asks!!!

### ⭐ Amazing data collection… but a very steep price and short life.
*by J***. on September 13, 2025*

Note: This is a long term review, after owning the ring for 10 months. It disappoints me to have to give this a 1 star review, because when the ring works, it works. It’s very convenient, accurate, un-intrusive to wear, and gives you a ton of valuable data, especially related to your cardiovascular system. But, out of the blue about 10 months into my ownership, battery life has cratered, and even when it doesn’t run fully discharged, it has randomly started disconnecting, meaning it’s not harvesting the data that I expect and want it to, and even worse, without full days of data, it won’t build any trends, meaning the limited data it does collect is useless. Reading online it seems I am not the only person experiencing this disappointment. Oura’s customer service is non existent. I have yet to figure out how to get in contact with a human there. All their customer service is routed through “Finn” their AI assistant. After trying everything that “Finn” has recommended numerous times, and getting nowhere, it would be an understatement to say I am frustrated. One of “Finn’s” suggestions is to fully wipe the ring and app from your phone and reinstall it, and if that doesn’t work, the implication from the system is that it will then elevate it to a customer service rep. The issue with that is when you do that, a hard reset and reinstall, the record with “Finn” also seems to go with it, so the system will never engage a human, it comes across almost like it’s intentional firewall in their service. I am coming up on my 1 year membership renewal. I am at the point where I need to decide if I need to make the $72 annual investment again. I would gladly spend that again, but I’m not really looking at a $72 investment. Given my current ring performance, this means buying another ring. Between the membership and a new ring, with taxes, shipping, etc, etc, etc that’s a near $500 investment; and since it only made it 10 months, that really means it’s effectively closer to $600 a year. Battery powered wearables have a limited life; I went into this understanding that, but, I don’t think that after less than a year of usage, going from ~5 days of battery life and collecting non-stop data to less than 24 hours of life with random crashes is in any way acceptable. Apple or Garmin or Google would have mass recalls or replacements on their hands if their wearables behaved like this. Good health is priceless. The ring helped me tremendously in my fitness journey. I have lost over 65 lbs with its help. At this point, however, given I have hit and am maintaining my weight goal, and from my current experience as well as based on what I read from others online, I refuse to spend any more money with Oura, simply because of their poor customer service and poor product life. My final thoughts: the ring makes your fitness journey significantly easier. Data is king when you’re committed to self improvement. For that, I give it 5 stars; but if you buy one, understand that it most likely will not make it to a year without some sort of collection or battery issue. You have to decide for yourself if $500 for 10-ish months of data is a fair price to pay.

## Frequently Bought Together

- Oura Ring 4 - Silver - Size 7 - 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 2-Pack 14K Gold Plated Stacking Rings for Oura Gen 4/Oura Gen 3, Cubic Zirconia Simulated Diamond Oura Ring Stack for Women

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-11*