The Oura Ring and the Oura Membership ($5.99/mo plus tax) work hand-in-hand to help you feel your best. Monitor your sleep, activity levels, temperature trends, stress, heart rate, and more. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.Oura Ring sizes are different from standard ring sizes. It’s important to find your size before you purchase your Oura Ring. Find your size by purchasing an Oura Ring Sizing Kit on Target.com. 1. Purchase ‘Oura Ring Sizing Kit’ on Target.com2. Learn your size by wearing your sizing kit ring for at least 24 hours 3. Purchase Oura Ring on Target.com4. Start your health journey with OuraTop Features-SLEEP - A market leader in sleep tracking for over a decade, Oura gives you best-in-class insights into your sleep quality. Feel more rested every day with personalized recommendations based on your sleep patterns. -ACTIVITY - Stay motivated with personalized daily activity goals. Oura tracks your heart rate, activity levels, and training frequency to tell if you're hitting your goals and to make sure you’re giving your body enough recovery time.-READINESS - Know when to push it and when to take it easy with the Oura Readiness Score. It takes into consideration over 20 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 longer-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 - Oura helps women listen to their bodies like never before. By using temperature trends, Oura can more accurately predict the phases of your menstrual cycle and tailor recommendations based on your unique health patterns and hormone levels.-HEART HEALTH - Your heart is a key indicator of your overall health. Use Oura to track your heart rate from morning to night and understand how your body responds to daily habits. Oura will help you understand your short-term and longer-term heart health trends. Based on a survey of 699 adult Oura Members, 88% saw an improvement in their overall health and 86% saw an improvement in their sleep quality. Looking for the best health tracker? Whether you’re searching for a sleep ring or fitness ring, Oura Ring is for you— this revolutionary smart ring that allows you to discreetly track your sleep, activity, recovery and stress, in style.