Oura Ring is a smart ring that tracks your sleep, readiness, and activity by measuring biometric signals from your finger. It is designed to be worn 24/7 as a subtle, screen-free alternative to a smartwatch, delivering personalized health insights through its companion app *photo courtesy: OURA RING 5 The Current Model: Oura Ring 5 Launched in May 2026, the Oura Ring 5 is the latest generation. It is 40% smaller than the Ring 4, making it the "world's smallest smart ring," an