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Oura Ring 4

Our most personal, accurate, and comfortable smart ring is here.

Featuring recessed sensors and a fully titanium inner and outer coating, Oura Ring 4 is sleeker and more comfortable than ever to wear all day long, from workout to night out. The most meaningful data starts with the most precise measurements, and the new Smart Sensing technology in Oura Ring 4 provides an unparalleled degree of accuracy and personalization. The multiple sensors inside the ring form an 18-path multi-wavelength photoplethysmography (PPG) subsystem to provide highly accurate, continuous data throughout the day and night.

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