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Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Silver - (2024)

Price
$249.99
Taxes and shipping calculated at checkout
Condition: Excellent

Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Silver - (2024)

Condition
Price
Excellent
$249.99
Good
$249.99
$349
Sold out
Eco-Save
$229.99
$349
Sold out
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12 Month Warranty

on most devices

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Description

 

Oura Ring 4 - Smart Ring - Size 9 - Silver

OVERVIEW

The Oura Ring 4 is an advanced, lightweight health-tracking wearable engineered to deliver comprehensive physiological insights straight to your smartphone. Designed with a durable, recessed sensor housing and a sleek titanium finish, it continuously monitors sleep architecture, heart rate variability, body temperature, and daily activity. Ideal for professionals and fitness enthusiasts seeking discreet biometric analysis, this smart ring optimizes personal wellness through actionable, data-driven recommendations. Its refined Size 9 Silver aesthetic combines enterprise-level hardware durability with non-intrusive 24/7 health monitoring.

KEY FEATURES

  • Smart Sensing Technology: Smart Sensing algorithms automatically adapt to your finger's unique physiology to ensure accurate, uninterrupted biometric signal capture day and night.
  • Extended Battery Longevity: Delivers up to 8 days of continuous battery life on a single charge, providing uninterrupted health tracking without frequent power interruptions.
  • Comprehensive Health Analytics: Deeply analyzes sleep quality, readiness levels, activity metrics, and cardiovascular indicators to help optimize your daily recovery and physical performance.
  • Durable Ergonomic Design: Crafted from high-durability titanium in a refined Silver finish, featuring a fully water-resistant, lightweight form factor optimized for 24/7 comfort.

SPECIFICATIONS

Device Type Smart Ring / Wearable Health Tracker
OS Version Proprietary Oura OS (iOS & Android Compatible)
Processor / CPU Integrated Ultra-Low Power Biometric Microcontroller
RAM Size + Type Integrated Embedded Memory
Storage Internal Flash Storage (Stores up to 7 days of offline data)
Screen / Display N/A (Screenless Wearable Design)
Touch Screen No
Color Silver
Battery Up to 8 Days Battery Life (Rechargeable Lithium-Polymer)
Hardware Upgradeability Rating N/A (Fully Sealed Enclosure)
Memory Upgradeability Non-Upgradable
Storage Upgradeability Non-Upgradable
Physical Ports & Expansion Custom Magnetic Wireless Charging Cradle (USB-C)

CONNECTIVITY

  • Bluetooth Low Energy (BLE) for seamless device synchronization
  • Automatic background cloud sync via the Oura Mobile App

WHAT'S INCLUDED

  • Device
  • Power Adapter

DOES NOT INCLUDE

  • Original Box

CONDITION

  • This is an open-box / refurbished product. It has been inspected, tested, and restored to full working condition. Minor cosmetic imperfections or light signs of wear may be present. Devices will have some variation in appearance.
See Specifications
Brand R3NEW
Title Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 9 - Silver - (2024)
Model Oura Ring 4

FAQ

What kind of warranty/guarantee do you offer?

At R3NEW, most transactions are backed by a 1-year warranty, covering technical defects and malfunctions, while every purchase includes a 30-day guarantee. Our warranty is designed to give you peace of mind, ensuring the reliability and longevity of your device.

What's the difference between the conditions? (Excellent, Good, EcoSave)

Great question! Let us break down the difference.

Excellent: Our Excellent condition devices offer a pristine user experience that rivals new units, boasting a flawless appearance with no visible scratches on the display or body. Each device undergoes rigorous testing to ensure it operates like new, giving you peace of mind with a full year of warranty coverage. It’s an ideal choice for those seeking near-new quality without the brand-new price tag

Good: Devices in Good condition are a great compromise between cost and quality. You might find a few minor scratches or slight nicks on the body or display, but these are purely cosmetic and don’t affect the device’s operation. We suggest using a case to bring its external appearance closer to 'like new.' Rest assured, every device meets our strict functional standards and comes with a one-year warranty for functionality

EcoSave: Opt for our EcoSave condition if you want to maximize value while minimizing environmental impact. These devices show visible signs of use, such as scratches or dents, which are purely cosmetic and can often be concealed with a case. Each device has passed our comprehensive functional tests and is backed by a one-year warranty, ensuring it works perfectly for you while also being kind to the planet.

Can I trust R3NEW?

We've sold electronics for over 15 years and are one of top trusted sources of certified refurbished electronics. Plus, with a 30-day guarantee and 12 month warranty, you can shop with peace of mind. If you have any issues at all, just email our support team and we'll help you out.