Oura Ring Generation 3 Activity Tracker STYLE: Heritage Style (distinctive flat-top look) FINISH: Black Finish SIZE: 10 Material: Durable, lightweight titanium Battery: Lasts up to 7 days, with a full charge taking 20-80 minutes Comes with original box, brochures and charger shown. Retail $349 “The Oura Ring Gen3 is a premium smart ring that tracks over 20 biometric signals, including sleep, heart rate, activity, stress, and temperature. It’s Known for its accuracy and 7-day battery life. It is also water proof.” This was used very minimally. Selling for my mom as she used it for part of a Sleep Apnea Study she was a part of and now no longer needs. Sure wish it fit me :( It has normal/minimal wear (small scratches here and there) on outside. I tried to picture it best I could. Honestly looks worse up close in the pictures than in person. Please look at all pictures and feel free to ask any questions. Smoke and Pet Free Home Thanks for shopping with me :)