---
product_id: 671537996
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: "$1766.07"
currency: USD
in_stock: false
reviews_count: 13
category: "Oura"
url: https://www.desertcart.ec/products/671537996-ring-4-smart-ring-size-first-with-oura-ring-4
store_origin: EC
region: Ecuador
---

# 8 days battery life All-titanium durable & sleek design 30+ biometric sleep & health metrics 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:** $1766.07
**Availability:** ❌ Out of Stock

## Summary

> 💍 Elevate your wellness game with the smartest ring you’ll ever wear.

## 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?** $1766.07 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/671537996-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 & Go:** Up to 8 days of battery life means freedom from constant charging—wear it day and night effortlessly.
- • **Smart Sensing Mastery:** Track 30+ biometrics including sleep, heart rate, stress, and women’s health with adaptive accuracy.
- • **Precision Sizing First:** Size yourself perfectly with the Oura Ring 4 Sizing Kit—no guesswork, just flawless fit.
- • **Seamless Membership Access:** Enjoy your first month free with Oura Membership for deep insights, then choose flexible plans tailored to you.
- • **Titanium Tough, Feather Light:** All-titanium build offers unmatched durability with a minimalist, comfortable design for 24/7 wear.

## Overview

The Oura Ring 4 is a premium smart ring designed for professionals who demand precision and style. Featuring adaptive biometric sensing that tracks over 30 health metrics including sleep, heart rate, and stress, it offers up to 8 days of battery life in a sleek, all-titanium design. The included sizing kit ensures a perfect fit, while the Oura Membership unlocks personalized wellness insights. Durable, comfortable, and discreet, it’s engineered for 24/7 wear to keep you connected to your health without distractions.

## Description

Oura Ring 4 - Rose Gold - Size 5 - Smart Wearable | Size First with Oura 4 Sizing Kit | Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days Battery Life : desertcart.ae: Electronics

Review: Pricey and good quality - No wonder it is priced very high but it delivers the quality justifying the price tag
Review: dying battery render the ring useless, free replacement seamlessly provided - Product works as expected and is hepful. After 7 months of usage battery is dying, resisiting less than one day after full charged. I contacted the seller, and free replacement arrived in couple of days, no need to return the mafunctioning one. As such, a one star reviewe turned into a 5 stars.

## 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 | B0D9WWMPSB |
| Age Range | Adult |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Batteries Included? | Yes |
| Best Sellers Rank | #107 in Electronics ( See Top 100 in Electronics ) #1 in Wearable Tech Rings |
| Brand | OURA |
| Color | Rose Gold |
| Compatible with | Smartphone |
| Customer Reviews | 4.0 4.0 out of 5 stars (5,818) |
| Date First Available | 11 April 2025 |
| Display Type | No Display |
| Features | Adaptive Biometric Sensing |
| Included Components | Information Booklet, Oura Ring 4, Oura Ring 4 Charger, Quick Start Guide, USB-C Cable |
| Item model number | JZ90-54219-05 |
| Manufacturer | Oura |
| Meter | Sleep Duration, Heart Rate, Stress, Blood Oxygen, Body Temperature |
| Number of Items | 1 |
| Product Dimensions | 2.3 x 2.3 x 0.8 cm; 191 g |
| Shape | Round |
| Size | 5 |
| Style | Minimalist |

## Product Details

- **Battery cell composition:** Lithium Polymer
- **Connectivity technology:** Bluetooth
- **Operating system:** Android
- **Special features:** Adaptive Biometric Sensing
- **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/51zKmnnZU8L.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

### ⭐⭐⭐⭐⭐ Pricey and good quality
*by T***E on 23 November 2025*

No wonder it is priced very high but it delivers the quality justifying the price tag

### ⭐⭐⭐⭐⭐ dying battery render the ring useless, free replacement seamlessly provided
*by R***U on 26 August 2025*

Product works as expected and is hepful. After 7 months of usage battery is dying, resisiting less than one day after full charged. I contacted the seller, and free replacement arrived in couple of days, no need to return the mafunctioning one. As such, a one star reviewe turned into a 5 stars.

### ⭐ Only 90 days warranty! Check ASAP your device.
*by D***L on 9 February 2026*

Ring 4, ~3 months old, iPhone 16. Disconnects at least every 1–2 hours; when it happens, the app/phone can’t find the ring until I place it on the charger (charger LED turns on immediately). Completed soft reset + factory reset + full re-pair (forgot device in iPhone Bluetooth) — issue persists. Battery now drains within a single day. Please check diagnostics and advise warranty replacement if hardware/battery issue is suspected.

## Frequently Bought Together

- Oura Ring 4 - Rose Gold - Size 5 - Smart Ring - Size First with Oura Ring 4 Sizing Kit - Sleep Tracking Wearable - Heart Rate - Fitness Tracker - Up to 8 Days of Battery Life
- BandSmith Silicone Ring Cover Compatible with Oura Ring Protector, Elastic Case for Oura Ring Gen 4/3 Working Out - Patent Protected (Transparent+Transparent, S for 678910)

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**Shop now:** [https://www.desertcart.ec/products/671537996-ring-4-smart-ring-size-first-with-oura-ring-4](https://www.desertcart.ec/products/671537996-ring-4-smart-ring-size-first-with-oura-ring-4)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-04-01*