A true engineering breakthrough

The BioRingo may be small, but it is mighty. The most stylish wearable on the market is jam-packed with features, accuracy, and innovation.

Research-Grade Sensors

Monitoring your sleep, activity, recovery, temperature trends, heart rate, stress, and more — with precise accuracy.

Long Battery Life

Up to 7 days battery life. Fast charging gives you a full charge in just 20-80 minutes

Award-Winning Design

24/7 comfort, ultra-lightweight, water resistant, and durable. The timeless design of Oura Ring works for any occasion, for work out to night out.

More Accurate From the Finger

The finger is the ideal source of accurate heart rate data, more sensitive to movement, and more accurate across all skin tones


all features

Sleep, Readiness, & Activity scores are just the beginning. Your BioRingo Membership also includes:


Sleep Score

Your Sleep Score answers, “how well did you sleep last night?”, based on data points including: total sleep, how much time you spent in each sleep stage, HRV, and more.

Automatic Nap Detection

Oura automatically records your naps and adjusts your daily scores.

Bedtime Guidance

Personalized recommendations for when to start winding down, so that you can maximize each night’s sleep.

Blood oxygen sensing (SpO2)

By detecting your blood oxygen levels at night, Oura can tell if you’re experiencing any breathing disturbances.


Readiness Score

Readiness is a holistic picture of your health — taking into account your recent activity, sleep patterns, and key biometric signals.

Rest Mode

Rest Mode is activated when Oura detects that you’re tired, unwell, or under stress. Your daily goals will be adjusted so you can put rest and recovery first.


See daily, weekly, and monthly calendar views of your key body metrics.

Restorative Time

Track physical and mental recovery by understanding how much time you spend in a relaxed state each day.

Activity Score

Your Activity Score is comprised of three core pillars — inactivity, activity level, and recovery.

24/7 Heart Rate

Learn how your body responds to your daily habits and choices by following your heart rate from morning to night.

Recovery Time

Recovery time tracks the number of easy days you’ve had during the week so you can allow your body to rest and recover.

Activity Goals

Personalize goal types and baseline goal numbers in the Oura App. Activity Goals in Oura are still dynamic, which means that activity goals are increased on high readiness days and decreased on low readiness days.

Workout Heart Rate & Insights

Track your HR during your workouts, and receive post-workout insights that include key HR stats, route, distance, pace, and 
HR recovery.

Activity Levels

Step count, calories burned, inactive times, training frequency, training volume, and more.

Automatic Activity Detection

You no longer need to manually start an activity. Whether you’re running a marathon or running an errand, Oura automatically detects over 30 activities for you and delivers insights afterwards.

Calorie Opt-out

Oura lets you opt out of calories (if desired) so that activity features better fit your lifestyle.


Apple Health, Google Fit, Health Connect, Strava, & Natural Cycles

Automatically sync your health and workout data from your favorite apps through Apple Health, Google Fit, Health Connect, Strava, and Natural Cycles.

Language Availability

iOS and Android apps available in English, Finnish, Japanese, German, French, Spanish, and Italian. Supports metric and imperial units of measurement.

iPhone and Apple Watch

Get your Oura data at a glance from your iPhone or Apple Watch with iOS widgets and Apple Watch complications. You can also access a companion version of the BioRingo App on your Apple Watch.



Add tags to record an activity, feeling, or choice – then see how it affects your sleep and readiness.

Guided Audio Sessions

See how your body signals respond to over 50 audio sessions for meditation, sleep, focus, and recovery.

BioRingo Circles

Connect with BioRingo Members, share your scores, send reactions, and check in on each other.

Period Prediction

Track the changes in your body throughout your cycle and predict your period up to 30 days in advance.

BioRingo Stickers

Add your BioRingo scores and achievements onto your photos to let friends know how you’re feeling.

Tech Specs


  • Durable titanium
  • PVD Coating
  • Non-allergenic, non-metallic, seamless inner molding
  • Water resistant up to 100m/328 ft.


  • Bluetooth Low-Energy 
(Bluetooth Smart®)
  • Automatic firmware updates via BioRingo App
  • EMF-Safe and Allows Airplane Mode


  • Green LEDs (optical heart rate sensor)
  • Red LED (blood oxygen sensor)
  • Infrared Photoplethysmography (PPG) sensors
  • Skin temperature sensors (negative temperature coefficient sensors)
  • Photodiodes
  • 3D Accelerometer

Weight & Dimensions

  • Width: 7.9mm
  • Thickness: 2.55mm — size of a wedding band
  • Weight: 4 to 6 grams (depending on 
ring size)

Battery & Power

  • Up to 7 days of battery life
  • Full charge in 20 to 80 minutes

Our results speak for

At BioRingo, validation is a top priority. The BioRingo has been used in independent studies at UCSF, UC San Diego, MIT Lincoln Laboratory, the US Army, and the US Navy – with more already in the works.

A research team at UCSF has published early results from a large-scale COVID-19 study, TemPredict, revealing that the temperature sensor of the BioRingo could be an effective tool for fever monitoring and early illness detection.

University of California, San Diego is using the BioRingo to look for patterns in heart rate, heart rate variability, temperature, respiratory rate, and sleep that may help identify the onset of pregnancy and/or help predict different pregnancy outcomes and progressions

A team of researchers at West Virginia University published a new study on how accurate consumer tools are at measuring heart rate and heart rate variability (HRV). BioRingo’s infrared photoplethysmogram (PPG) sensor matched performance with clinical-grade ECG and consistently outperformed other PPG tools.

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