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Oura Ring

Oura Ring

Oura Ring
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"OURA is a revolutionary ring-sized wellness computer that helps you sleep and perform better.”

The Oura ring automatically collects and wirelessly synchronizes data to the Oura app. It measures your physiological signals, with no switches or flashing lights. Just wear it.


  • Oura's proprietary pulse waveform and pulse amplitude variation detection with infrared PPG sensor
  • Improved body temperature sensor
  • 3D accelerometer and gyroscope

The signals the Oura ring processes are:

  • Interbeat interval (IBI)
  • Pulse amplitude variation (related to blood pressure variation)
  • ECG level resting heart rate (RHR)
  • Heart rate variability (HRV)
  • Respiratory rate
  • Movements, and timing, duration and intensity of physical activity
  • Body temperature deviation

Ring material

  • Titanium with scratch resistant coating
  • Non-allergenic, non-metallic, seamless inner molding
  • Ultra light-weight: 4-6 grams (lighter than a conventional ring) 
  • Water resistant: 100m / 328ft

Sizes & Colors

  • Three unique designs and four different color options, all with the same technical features and functionalities.
  • Available in 8 sizes, US6-US13
  • Width: 7.9 mm, thickness 2.55 mm (size of a wedding band) 

Memory & Connectivity

  • Collects data autonomously: In-ring memory to store data up to 6 weeks
  • Cypress’ PSoC 6® BLE microcontroller (MCU)
  • Connects and syncs to mobile device using Bluetooth Low-Energy Smart
  • Ring Airplane mode


  • Data encryption
  • Secure pairing of the ring and the app

Battery & Charging

  • Ring battery life up to one week
  • Wireless charging
  • Color of charger: black
  • Diameter 47.5mm
  • Max. height 17.39mm
  • USB-C (USB-A to USB-C cable included)
  • Specific to ring size
  • Charging times: 20–80 minutes depending on charging frequency

Matt's Thoughts: If you, or someone you know, uses a FitBit, please throw it in the trash! That thing is radiating the blood with dangerous levels of non-native electromagnetic pulsed frequencies. This is the best device in the world if you want to quantify your quality of sleep. You can save a life by giving this as a gift to someone that is constantly poisoning themselves, especially on the WRIST! That is the worst spot possible because of the high blood volume!