Purchased in Jan 2024 for $449 + $15 shipping and only worn for about 6 months and then was gifted a different model instead so selling this one. Size Us 8 Comes with USB charger and ring only has natural light scratch marks from normal use. — The Oura Ring Gen3 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, stress, heart rate, and more with the most trusted Smart Ring. Whether you’re focusing on your fitness or want to improve your sleep, Oura helps you take control of your health — in style.