Introducing the remarkably thin and light Oura Ring 5—the smallest smart ring ever made, with even more sensing power than previous generations. 40% smaller and ultra lightweight, Oura Ring 5 fits in seamlessly with your life and your style. Designed to look and feel like a regular ring, Oura Ring 5 delivers 50+ health metrics with research-grade accuracy. With 1 week of battery life you can even forget it’s on.* No more compromises when it comes to tracking your health.