The Oura Ring 4 is a brand new activity tracker designed for unisex adults. It features a temperature sensor, heart rate monitor, and sleep tracker, making it ideal for running and jogging enthusiasts. The ring is available in silver color with a size of 6. It offers a sleek and comfortable design, while providing accurate and detailed data about your workouts and overall health. Powered by English and Spanish language settings, the Oura Ring 4 is a stylish and functional fitness technology companion for your active lifestyle.