The NEW Oura Ring 4 Smart Ring in size 8 is a state-of-the-art activity tracker designed for both indoor and outdoor use. Made from durable titanium material, this smart ring offers a high-resolution display with a 240 x 240 resolution for accurate readings. With a battery life of up to 7 days and advanced features like temperature monitoring, heart rate tracking, and sleep tracking, this ring is perfect for fitness enthusiasts looking to monitor their health and performance. Compatible with both iOS and Android devices, the Oura Ring 4 is a must-have for anyone interested in tracking their fitness and well-being. Please see photos for condition