Oura Ring 4 Silver

Oura Ring 4 is a premium smart ring designed to track health, sleep, and activity through advanced sensors and personalized insights. It features a fully titanium design with recessed sensors for improved comfort and durability, and it continuously monitors biometrics such as heart rate, blood oxygen, respiration, temperature trends, and movement. Its redesigned multi sensor system delivers more accurate readings tailored to each user’s physiology, while Smart Sensing technology adapts measurements for better signal quality. The ring weighs about 3.3 to 5.2 grams depending on size and offers about 5 to 8 days of battery life.