What is Oura Ring 5?

Oura Ring 5 is the latest generation of the world’s smallest smart ring, delivering over 50 health metrics from sleep and activity to stress, heart health, and recovery. Now 40% thinner and lighter than previous models, it features a refined titanium design and up to 9 days of battery life on a single charge. The ring’s highly precise sensors adapt to your body, providing personal health data day and night with 99% heart rate accuracy compared to ECG and 95% sleep staging accuracy versus clinical sleep labs.

Who it's for

• Health optimizers who want a continuous, unobtrusive way to track sleep quality, recovery, and readiness without wearing a bulky device.
• Active individuals who need automatic activity detection for over 40 activities, personalized daily goals based on recovery, and insights into cardiovascular age and cardio capacity.
• Anyone managing stress or wellness who wants to understand daytime stress triggers, build resilience over time, and monitor early signs of illness through temperature and heart rate shifts.

Key features

Sleep tracking and analysis

Oura Ring 5 provides a Sleep Score based on total sleep, heart rate variability, nighttime movement, and regularity. It breaks down your deep sleep, REM, and light sleep stages, and offers Bedtime Guidance to help you wind down at the right time. Blood oxygen sensing at night can also detect breathing disturbances.

Activity and recovery intelligence

The ring automatically recognizes over 40 activities—from cycling to basketball to housework—and tracks heart rate during movement. Your Activity Score analyzes consistency and recovery time, while personalized daily goals adjust based on your Readiness Score, helping you balance movement and rest.

Stress and resilience monitoring

Daytime Stress tracking shows how daily activities, tags, and movement affect your stress levels. The Resilience feature monitors how well your body recovers from physiological stress over time, giving you actionable feedback to bounce back faster.

Heart health and cycle insights

24/7 heart rate monitoring reveals how your body responds to meals, exercise, and environment. Cardiovascular Age and Cardio Capacity (VO2 Max estimate) provide long-term health context. For women, Cycle Insights use temperature trends to predict periods and integrate with apps like Natural Cycles, Flo, and Clue.

What stands out

Oura Ring 5 is 40% smaller yet packs 50+ health metrics with clinical-grade accuracy—all in a titanium ring you can wear every day.

This combination of miniaturization and precision is rare in wearable tech. The ring’s sensors adapt to your unique physiology, not just generic algorithms, which explains the 99% heart rate accuracy and 95% sleep staging accuracy. And with up to 9 days of battery life, you don’t have to choose between data and convenience.

Worth checking out if…

You want a discreet, comfortable wearable that delivers deep health insights without the bulk of a smartwatch. Oura Ring 5 is ideal if you prioritize sleep quality, recovery, and stress management, and appreciate a device that blends into your daily life—titanium, waterproof, and designed for 24/7 wear.