Oura Ring 4
Designed to understand you
Built for accuracy and all-day comfort, so you can stay close to your health
Carefully designed, profoundly perceptive
Crafted with exceptional precision, Oura Ring 4 helps you better understand your whole health with personalized insights across sleep, activity, stress, heart health, cycle tracking, and more.
Always-on health tracking
Go longer between charges with Oura Ring 4, offering 5–8 days of battery life depending on your ring size and lifestyle.
Live well. Live longer.
Oura Ring and Oura Membership work hand-in-hand to support your long-term health goals and encourage lasting, healthy habits. Personalized insights help you better understand your body, today and for the years ahead.
Explore Features
Sleep Score
A lot happens while you’re asleep, and your Sleep Score is Oura’s way of making sense of it all. Your score is based on how long you spent in each sleep stage and key signals like how long it took you to fall asleep and the timing of your sleep.
Sleep Stages
Every night, your brain and body experience different phases of sleep that each play an essential role in maintaining your mental and physical health. Discover how much time you spend in each sleep stage (light, deep, and REM) and what it means for your wellbeing.
Blood Oxygen Sensing
Oura Ring can detect your overall blood oxygen saturation levels while you sleep. These measurements show how efficiently your body circulates and absorbs oxygen, making it a useful index of your overall health, as well as indicating possible disturbances in your breathing.
Rest Mode
Rest Mode is designed for days when you need to take it easy. When you're sick, injured, jet-lagged, or just need a time out, turn on Rest Mode to pause your activity goals. Instead, you'll see personalized health insights from Oura to help you recover.
Your body talks, Oura translates
Oura Membership unlocks personalized insights, an AI health companion, and new features as they arrive — all in the Oura App. Available on iOS and Android.
