Introducing the remarkably thin and light Oura Ring 5—the smallest smart ring ever made, with even more sensing power than previous generations. 40% smaller and ultra lightweight, Oura Ring 5 fits in seamlessly with your life and your style. Designed to look and feel like a regular ring, Oura Ring 5 delivers 50+ health metrics with medical-grade accuracy. With up to 1 week of battery life you can even forget it’s on. No more compromises when it comes to tracking your health.

Key Features

Sizing is essential
Oura Ring 5 requires unique sizing different from standard jewelry rings; use the Oura Ring 5 Sizing Kit to find your perfect fit before purchasing

The world's smallest Smart Ring*
40% smaller than the previous generation, Oura Ring 5 is thinner, lighter and smaller than ever. The updated all-titanium design is more scratch-resistant and comfortable than ever.
*Smallest ring compared against leading smart ring competitors that were commercially available, mass-produced, and widely distributed as of Q1 2025.

Rebuilt for greater accuracy
Oura Ring 5 has been re-engineered and reconfigured, providing even more precise personal health data. Larger, smarter sensors bring research-grade accuracy —all in Oura’s smallest form factor yet.

Everyday health sensing
Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, metabolic health and women’s health metrics. Oura seamlessly integrates with over 40 apps including Natural Cycles, Flo, Strava, & more

Dive deeper with AI
Oura Advisor provides sound guidance as you make moves toward more sustained energy levels, better sleep, a healthy weight, and so many other health benefits

Up to 1 week of battery life
Charge it once a week and never miss a night of data. With the Oura Ring 5 Charging Case (sold separately), get up to 5 charges on the go, wherever life takes you.

With 50+ health metrics and insights at your fingertips, Oura helps you turn daily habits into a longer, healthier life..Your Oura Membership and your Oura Ring go hand in hand to help you achieve your health goals.

Key Features

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
Step and Calorie Count
Heart Rate Tracking and Zone Trends

Stress
Oura detects moments of stress to help you identify your unique 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 track your cycle phases using your biometric
Period and Ovulation Detection
Pregnancy Insights
Menopause Insights
Hormonal Birth Control support

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 key indicators of your overall health — your heart.
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.
5+ million Oura Members worldwide
12+ years of research and innovation
35+ in-house PhDs across science, engineering, and research

Accuracy
With stronger signals on the finger than the wrist, Oura Ring is accurate by design.

Privacy
Your health data is deeply personal, and protecting it is fundamental to everything we do. At Oura, you are always in control of your information. Your privacy is our priority.

What's in the box:
Oura Ring 5
Oura Ring 5 Charger (size-specific)
USB-C to USB-C Oura Ring charging cable
Printed documentation (quick start / info booklet)