The world's smallest smart ring
Oura Ring 5 is 40% smaller than previous generations and more powerful than ever.
With 50+ health metrics and insights at your fingertips, Oura helps you turn daily habits into a longer, healthier life.
See the complete Oura collection.
Shop All ProductsSize before you buy
The right size ensures optimal accuracy and comfort. Sizes differ between Oura Ring generations and standard sizes.
How to size
in-store
Choose a finger
We recommend the index, middle or ring finger.
Try a few sizes
The right size should feel snug but comfortable.
Test it out
Move and flex your hand, ensure there are no gaps between ring and finger.
The world-class
Oura Membership
Track 50+ biometrics with medical-grade accuracy.
Sleep
Wake up to in-depth analysis about your sleep, so you can improve your habits and transform how you feel.
- Daily Sleep Score
- Sleep Stages
- Nap Detection
- Sleep Debt
Activity
Whether you're running a marathon or running errands, Oura tracks your daily activity and workouts while helping you strike a balance between movement and recovery.
- Daily Activity Score
- Automatic Activity Detection
- Steps and Calorie Count
- Heart Rate Tracking and Zone Trends
Stress
Oura's Stress feature detects moments of stress to help you identify your unique stress triggers and recovery tactics.
- Daytime Stress
- Stress Resilience
- Cumulative Stress
- AI Guidance for Stress Management
Women's Health
Oura helps you understand how your cycle affects your body, so you can make better, informed decisions about your health.
- Cycle Insights
- Period and Ovulation* Prediction
- Pregnancy Insights
- Perimenopause Check-In
- Natural Cycles Integration
Heart Health
From monitoring your daily heart rate and HRV to discovering your Cardiovascular Age and Cardio Capacity, Oura helps you take care of one of the most essential aspects of your health.
- Cardiovascular Age
- VO2 Max
- Heart Rate Variability Trends
- 24/7 Heart Rate Tracking
Critically acclaimed, backed by science
The award-winning Oura Ring is trusted by academic institutions, athletes, physicians and a growing community across the globe.
Accurate by design
Research-grade sensors powered by Smart Sensing adapt to your finger, where the pulse signal is 50-100x stronger than the wrist, delivering optimal accuracy.
Medical Advisory Board
Our features are created in tandem with trusted advisors across medical fields.
See the complete Oura collection.
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