OURA Ring 5 Black - Size 12

Introducing the remarkably thin and light Oura Ring 5the 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 research-grade accuracy. With 1 week of battery life you can even forget its on. No more compromises when it comes to tracking your health. 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 Oura Membership First month of membership is included with purchase, for new Oura members. 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 Ouras smallest form factor yet. Everyday Health Sensing Oura tracks over 50 health metrics, including sleep, activity, stress, heart health, metabolic health and womens 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 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 biometri 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)