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Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 7 - Silver - (2024)

Price
$299.99
Taxes and shipping calculated at checkout
Condition: Excellent

Oura - Ring 4 - Smart Ring - Size Before You Buy with OR4 Sizing Kit - Size 7 - Silver - (2024)

Condition
Price
Excellent
$299.99
Good
$229.99
$349
Eco-Save
$259.99
$299.99
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Description

 

Oura Ring 4 - Smart Ring - Size 7 - Silver

OVERVIEW

The Oura Ring 4 (Size 7, Silver) is a premium health and wellness wearable engineered to deliver comprehensive biometric telemetry in a sleek, screenless form factor. Crafted from durable titanium with a polished silver finish, this smart ring tracks sleep performance, 24/7 heart rate, temperature trends, and blood oxygen levels without interrupting your everyday routine. Driven by advanced Smart Sensing technology, it dynamically adapts to finger movement to maximize data accuracy and operational efficiency. Fully tested and restored to Grade A condition, this refurbished hardware configuration offers outstanding personal insight, multi-day battery longevity, and exceptional fiscal value.

KEY FEATURES

  • Smart Sensing Technology: Dynamically adapts to finger movement to deliver continuous, highly accurate biometric and activity telemetry.
  • 24/7 Biometric Monitoring: Tracks daytime and resting heart rate, heart rate variability (HRV), skin temperature variations, and blood oxygen saturation (SpO2).
  • Durable Titanium Design: Built with a lightweight, recessed titanium body in a sleek Silver finish with 100m water resistance.
  • Extended Battery Lifecycle: Delivers up to 8 days of uninterrupted health tracking on a single charge with magnetic dock recharging.

SPECIFICATIONS

Device Type Smart Ring / Personal Health Wearable
OS Version Proprietary Oura OS (iOS & Android Compatible via Oura App)
Processor / CPU Integrated Ultra-Low Power System-on-Chip (SoC)
RAM Size + Type Embedded Low-Power Shared System Memory
Storage Onboard Flash Memory (Up to 7 Days Offline Data Storage)
Screen / Display None (Screenless Sensor-Based Architecture)
Touch Screen No
Color Silver (Size 7)
Battery Integrated Rechargeable Lithium-Polymer (Up to 8 Days Battery Lifecycle)
Hardware Upgradeability Rating Non-Upgradeable - Factory-sealed titanium housing with 10 ATM / 100m water resistance rating.
Memory Upgradeability Non-Upgradeable - System memory integrated within embedded SoC layer.
Storage Upgradeability Non-Upgradeable - Embedded onboard flash module.
Physical Ports & Expansion None (Utilizes inductive magnetic wireless charging dock)

CONNECTIVITY

  • Bluetooth Wireless: Bluetooth Low Energy (BLE) framework enabling low-power localized synchronization with companion iOS and Android devices.
  • Sensor Array: Integrated multi-wavelength optical PPG sensors, skin temperature sensors, and 3D accelerometer array.

WHAT'S INCLUDED

  • Oura Ring 4 (Size 7 - Silver)
  • Magnetic Wireless Charging Dock & Cable

DOES NOT INCLUDE

  • Original Box
  • AC Wall Power Adapter

CONDITION

  • This item has been professionally tested by trained technicians and is fully functional. The device has been professionally refurbished to an excellent condition with minimal signs of wear. This is a refurbished product. It has been inspected, tested, and restored to full working condition. Minor cosmetic imperfections or light signs of handling 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 7 - Silver - (2024)
Model Ring 4
Color Silver

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.