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Oura - Ring 4 - Smart Ring - Size 12 - Gold

Price
$359.99
Taxes and shipping calculated at checkout
Condition: Excellent

Oura - Ring 4 - Smart Ring - Size 12 - Gold

Condition
Price
Excellent
$359.99
Good
$339.99
$359.99
Sold out
Eco-Save
$319.99
$359.99
Sold out
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12 Month Warranty

on most devices

30-Day Money Back Guarantee

on every device

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most orders ship same day

Description

 

Oura Ring 4 - Smart Ring - Size 12 - Gold

OVERVIEW

The Oura Ring 4 (Size 12, Gold) represents the pinnacle of subtle, continuous health monitoring in a sleek, lightweight smart ring form factor. Engineered with medical-grade Smart Sensing technology, this device delivers precision tracking across sleep cycles, heart rate variability, temperature changes, and daily activity metrics. Its durable titanium design and elegant gold finish blend seamlessly into professional and casual settings while delivering multi-day battery longevity. Fully tested and restored to working order, this Grade OA unit offers premium health insights and exceptional fiscal value for wellness-conscious individuals.

KEY FEATURES

  • Smart Sensing Biometrics: Delivers accurate, continuous tracking for sleep quality, heart rate, readiness scores, and body temperature fluctuations.
  • Refined Titanium Craftsmanship: Built with a sleek, durable titanium casing in a brilliant gold finish designed for comfortably light, 24/7 wear.
  • Extended Battery Lifecycle: Provides up to 8 days of continuous telemetry and data collection on a single inductive charge.
  • Cross-Platform Ecosystem: Syncs biometrics effortlessly via Bluetooth to companion iOS and Android applications for comprehensive health analytics.

SPECIFICATIONS

Device Type Smart Ring / Wearable Health Sensor
OS Version None (Requires iOS or Android Companion App)
Processor / CPU Integrated Low-Power Microcontroller Architecture
RAM Size + Type Embedded System Memory
Storage Onboard Flash Data Buffer (Up to 7 days offline sync)
Screen / Display None (Screenless Telemetry Architecture)
Touch Screen No
Color Gold
Battery Rechargeable Lithium-Polymer (Up to 8 Days Battery Life)
Hardware Upgradeability Rating Non-Upgradable - Sealed Water-Resistant Titanium Shell
Memory Upgradeability Non-Upgradable - Permanently integrated architecture
Storage Upgradeability Non-Upgradable - Fixed onboard memory
Physical Ports & Expansion None (Inductive Wireless Charging Dock Interface)

CONNECTIVITY

  • Bluetooth Low Energy (BLE): Low-power wireless framework enabling background health telemetry synchronization with smartphones.
  • Sensors & Telemetry: Integrated PPG optical sensors, skin temperature sensors, and 3D accelerometer.

WHAT'S INCLUDED

  • Oura Ring 4 (Size 12, Gold)
  • Charging Dock with USB Cable

DOES NOT INCLUDE

  • Original Retail Packaging
  • Sizing Kit

CONDITION

  • This item has been inspected, tested, and restored to full working condition. It is in excellent refurbished / open-box condition with minimal signs of wear. Devices will have some variation in appearance.
See Specifications
Brand R3NEW
Title Oura - Ring 4 - Smart Ring - Size 12 - Gold
Model JZ90-54216-12
Color Gold

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.