---
product_id: 722393173
title: "Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life"
brand: "oura"
price: "188538 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Oura"
url: https://www.desertcart.hu/products/722393173-ring-4-smart-ring-size-first-with-oura-ring-4
store_origin: HU
region: Hungary
---

# 8 days battery life Water resistant up to 100m Tracks 30+ biometrics Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life

**Brand:** oura
**Price:** 188538 Ft
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Ring 4 | Smart Ring | Size First with Oura Ring 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life by oura
- **How much does it cost?** 188538 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/722393173-ring-4-smart-ring-size-first-with-oura-ring-4)

## 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

- • **Unplug & Thrive:** Up to 8 days of battery life means no daily charging interruptions—focus on living, not charging.
- • **Precision Fit, Zero Guesswork:** Size yourself perfectly with the Oura Ring 4 Sizing Kit and get credit towards your ring purchase.
- • **Titanium Tough, Feather Light:** Crafted from ultra-durable, lightweight titanium for comfort and resilience in any environment.
- • **Seamless Style Meets Smart Tech:** Discreet, sleek design fits every occasion, letting you track health without the bulk or buzz.
- • **All-Day, All-Night Health Insights:** Monitor sleep, heart rate, stress, activity, and women’s health with Smart Sensing tech adapting to you 24/7.

## Overview

The Oura Ring 4 is a cutting-edge smart ring made from durable titanium, designed for 24/7 wear with water resistance up to 100 meters. It tracks over 30 biometrics including sleep, heart rate, stress, and women’s health metrics using advanced Smart Sensing technology. With up to 8 days of battery life and a sizing kit to ensure the perfect fit, it offers seamless health insights without interrupting your lifestyle.

## Description

From the manufacturer Size before you buy Easy to wear, everywhere No interruptions Built to last Accurate by design The Oura Ring 4 Sizing Kit is the best way to ensure an accurate experience. With a purchase of the sizing kit, you'll receive a credit towards your Oura Ring 4. Sleek and comfortable, Oura Ring seamlessly fits into your life from a workout to a night out. Stay present without notifications on your wrist. Check the Oura App when you want to. Oura Ring 4 is fully titanium: one of the strongest metals on earth. Durable, lightweight, and water resistant. Oura Ring 4 delivers incredibly accurate data and personalised health insights to help you be at your best. Fully Titanium Oura Ring 4 is fully titanium: one of the strongest metals on earth. Durable, lightweight, water resistant. Fully Titanium Oura Ring 4 is fully titanium: one of the strongest metals on earth. Durable, lightweight, water resistant. Smart Sensing A first-of-its-kind sensing platform, Smart Sensing adapts to your unique finger, ensuring continuous, accurate data from over 30 biometrics - day and night. Smart Sensing A first-of-its-kind sensing platform, Smart Sensing adapts to your unique finger, ensuring continuous, accurate data from over 30 biometrics - day and night. Long battery life Up to 8 days of battery means you can track your health 24/7 without charging every night. Long battery life Up to 8 days of battery means you can track your health 24/7 without charging every night. Always Wearable Oura Ring 4 is more comfortable with a fully round interior with discreet, recessed sensors. It's water resistant and can withstand heat, and cold. Always Wearable Oura Ring 4 is more comfortable with a fully round interior with discreet, recessed sensors. It's water resistant and can withstand heat, and cold. Sleep Activity Readiness Stress Heart Health Women’s Health Wake up to in-depth sleep analysis, so you can improve your habits and transform how you feel. Whether running a marathon or running errands, Oura tracks your daily activity and workouts while helping you strike a balance between movement and recovery. Know when to push it and when to take it easy. Your Readiness Score tells you how energised you are using over 30 biometrics - it can even tell when you might be getting sick. Oura will help you identify signs of stress and understand how well your body handles it. You'll know when you need to incorporate more self-care practises and how to recover from long term stressors. From monitoring your daily heart rate and HRV to discovering your Cardiovascular Age and Cardio Capacity, Oura helps you take care of one of the key indicators of your overall health - your heart. Your cycle impacts your mood, sleep, activity and more, every day. Oura helps you understand how your cycle affects your body, so you can make better, informed decisions about your holistic health. Size Before You Buy Step 1 Purchase an Oura Ring 4 Sizing Kit and receive a credit towards your Oura Ring. Step 2 Advanced health monitoring capabilities, including heart rate, sleep patterns, and activity tracking. Step 3 Slip on your Oura Ring 4 and download the Oura App. Step 4 New members get the first month of Oura Membership free. Oura Ring 4 What's in the Box Oura Ring 4 Charger and USB-C Cable

Review: Very good ring, apps, afterservice - I bought in Apr-25 (with Salama 1yr extra warranty). I have been using this ring a everyday and never give me issues. However, these last couple of day, it started to lose connection when i am outside, and battery seems to be very quick charge. Contacted the support thru app, and got replacement in mere minutes. Very good after service. Ring itself is very good at tracking sleep, stress level, and help me plan my day. The heart rate is same as my sport band type hrm. The app is very good, able to sync with strava, google health. If any suggestion i would make, is for Oura to allow the notes for daily supplements to carry over. I have supplements around same time, everyday. I would recommend the ring for the after service, apps - and that it comes in a ring package, so i can wear my watches without feeling dumb :)
Review: New Ring - My Oura Ring arrived in perfect condition, the box was closed and the ring is new, was very easy to create and account in the app, I got one month free subscription as advertised, I was so worry about the reviews and at the end everything works great. Love the ring colour.

## Features

- SIZE BEFORE YOU BUY - Oura Ring 4 sizes are different from standard ring sizes. Size yourself with the Oura Ring 4 Sizing Kit and receive a dh35.00 desertcart credit towards the future purchase of an Oura Ring 4.
- OURA MEMBERSHIP - First month of membership is free with your purchase, $6.99/mo afterwards. Offer available to new members only. Or opt for the annual prepaid option for $79.99. Membership is tied to your account via the Oura App, not your physical ring.
- ACCURACY - SMART SENSING - Oura tracks over 30 biometrics, 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.
- 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 | B0D9WVBBZ4 |
| Additional Features | Advanced Health Tracking |
| Age Range Description | Adult |
| Band Color | Black |
| Band Material Type | Stainless Steel |
| Battery Average Life | 8 days |
| Battery Cell Type | Lithium Polymer |
| Battery Charge Time | 80 minutes |
| Battery cell composition | Lithium Polymer |
| Best Sellers Rank | #947 in Electronics ( See Top 100 in Electronics ) #5 in Wearable Tech Rings |
| Brand | OURA |
| Built-In Media | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Case Material Type | Stainless Steel |
| Closure Type | Slip On |
| Color | Silver |
| Communication Feature | Bluetooth |
| Compatible Devices | Smartphone, Tablet |
| Compatible Phone Models | All current iPhone models, all current Samsung Galaxy models, all current Android models |
| Connectivity Technology | Bluetooth |
| Connectivity technology | Bluetooth |
| Controller Type | Ring |
| Country of Origin | Estonia |
| Customer Reviews | 4.0 out of 5 stars 8,360 Reviews |
| Display Type | Analog |
| GPS | No GPS |
| GPS Geotagging Functionality | No GPS |
| Human Interface Input | Unknown |
| Item Dimensions | 24 x 24 x 8 millimeters |
| Item Dimensions D x W x H | 24D x 24W x 8H millimeters |
| Manufacturer | Oura |
| Metrics Measured | Heart Rate, Sleep Duration, Activity, Stress, Heart Health |
| Model Name | JZ90-54217-14 |
| Model Number | JZ90-54217-14 |
| Operating System | Proprietary/Custom |
| Operating system | Proprietary/Custom |
| Shape | Round |
| Special features | Advanced Health Tracking |
| Sport Type | Fitness |
| Style Name | Modern |
| Supported Application | Fitness Tracker |
| Supported Satellite Navigation System | GPS |
| Target Audience | Men |
| Warranty Description | 2 year manufacturer warranty |
| Warranty Type | Limited |
| Water Resistance Depth | 100 Meters |
| Water Resistance Level | Water Resistant |
| Waterproof Rating | IP54 |
| Wearable Computer Type | Smart Ring |
| Wireless Compability | Bluetooth |
| Wireless communication standard | Bluetooth |

## Product Details

- **Battery cell composition:** Lithium Polymer
- **Connectivity technology:** Bluetooth
- **Operating system:** Proprietary/Custom
- **Special features:** Advanced Health Tracking
- **Wireless communication standard:** Bluetooth

## Images

![Ring 4 | Smart Ring | Size First with Oura 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/51ul5++ZdWL.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

### ⭐⭐⭐⭐⭐ Very good ring, apps, afterservice
*by A***L on 24 July 2026*

I bought in Apr-25 (with Salama 1yr extra warranty). I have been using this ring a everyday and never give me issues. However, these last couple of day, it started to lose connection when i am outside, and battery seems to be very quick charge. Contacted the support thru app, and got replacement in mere minutes. Very good after service. Ring itself is very good at tracking sleep, stress level, and help me plan my day. The heart rate is same as my sport band type hrm. The app is very good, able to sync with strava, google health. If any suggestion i would make, is for Oura to allow the notes for daily supplements to carry over. I have supplements around same time, everyday. I would recommend the ring for the after service, apps - and that it comes in a ring package, so i can wear my watches without feeling dumb :)

### ⭐⭐⭐⭐⭐ New Ring
*by A***A on 27 May 2026*

My Oura Ring arrived in perfect condition, the box was closed and the ring is new, was very easy to create and account in the app, I got one month free subscription as advertised, I was so worry about the reviews and at the end everything works great. Love the ring colour.

### ⭐ WOULD NOT RECOMMEND
*by D***A on 28 April 2026*

After just 6 months, the battery lasts only 1 day. The ring frequently loses connection and fails to record data, especially during sleep. Very disappointing experience — would not recommend.

## 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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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-08-19*