Oura Ring 4 is built around a breakthrough sensing technology, Smart Sensing, which is powered by an algorithm that works with research-grade sensors to dynamically adapt to the finger and deliver accurate and continuous data, day and night. The lightweight, all-titanium design of Oura Ring 4 features recessed sensors for a smooth interior shape and thinner profile, making it more comfortable for 24/7 wear. By combining Smart Sensing and the sleek new design, Oura Ring 4 is able to achieve both exceptional accuracy and improved comfort without having to sacrifice one for the other.
