SAN FRANCISCO–(BUSINESS WIRE)–ŌURA, the maker of the most trusted smart ring, Oura Ring, announced today that it has sold more than 2.5 million rings. The acceleration of ŌURA’s business reflects increased consumer interest in health and wellbeing, with people investing in tools they can trust to understand themselves better and gain insights that can help improve their health over time. “What is most rewarding is the breadth of our customers—they aren’t just biohackers or people seeking peak