Introducing Oura Ring 4: the latest evolution of the revolutionary smart ring. Oura Ring 4 brings you closer to what matters most — your health. The updated all-titanium design is powered by Smart Sensing, a new sensing platform that doesn’t just measure your biometrics, it adapts to you, providing insights into over 30 biometrics including sleep, readiness, activity, heart health, stress and women’s health. Oura Ring quietly and comfortably monitors your health, and with up to 8 days of battery life — you can forget it’s even on.

Sleeker, smarter and more accurate than ever, Oura Ring 4 is made for you.

Please note: Size before you buy

Oura Ring sizes are different from standard ring sizes. It’s important to find your size before you purchase your Oura Ring. Purchase an Oura Ring Sizing Kit on JohnLewis.com, or size yourself in a nearby John Lewis store. With a sizing kit purchase, you will receive a £10 coupon code to use towards your Oura Ring at checkout.

Learn your size by wearing your sizing kit ring for at least 24 hours

Purchase an Oura Ring on JohnLewis.com or find a nearby John Lewis store. Check in-store stock for more information. Start your health journey with Oura. New members get the first month of Oura Membership free, then subscription fees apply.

Accuracy with smart sensing

Oura Ring 4 is powered by Smart Sensing, which adapts to your unique finger and activity — delivering accurate, continuous data, day and night.

Designed for 24/7 wear

Oura Ring 4‘s updated design is more comfortable, fits better than ever, and is water resistant. The first all-titanium smart ring combines exceptional durability with a gentle touch, even for sensitive skin.

Long lasting battery

With up to 8 days of battery life, no screens and no vibrations, Oura Ring 4 allows you to focus on the present.

Sleep

Get the best sleep of your life, and then some. Wake up to in-depth sleep analysis, so you can improve your habits and transform how you feel. Oura provides insights into your sleep staging throughout the night, blood oxygen levels, HRV, and nighttime heart rate.

Activity

Whether you're running a marathon or running errands, Oura tracks your daily activity, steps, calories burned, and workouts while helping you strike a balance between movement and recovery.

Readiness

Know when to push it and when to take it easy with the Oura Readiness Score. It takes into consideration over 30 different body signals — including temperature, heart rate, HRV, and sleep — to tell you how ready you are for the day ahead.

Stress

Oura will help you identify signs of stress and understand how well your body handles it. You'll know when you need to incorporate more self-care practices and how to recover from long term stressors.

Illness detection

Oura monitors shifts in your temperature and heart rate so you can tell when you may be getting sick sooner.

Women's health

Your cycle impacts your mood, sleep, activity and more, every day. Oura helps you understand how your cycle affects your body, so you can make better, informed decisions about your holistic health. Track the changes in your body throughout your cycle and predict your period up to 30 days in advance.

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 key indicators of your overall health — your heart.

IMPORTANT: Size yourself with the Oura Ring Sizing Kit before you buy. Oura Rings are not standard sizing, and finding the right size will result in the best experience possible. With a sizing kit purchase, you will receive a £10 coupon code to use towards your Oura Ring at checkout.