Oura raises $28 million for its health and sleep tracking ring – TechCrunch

Smart rings are still a relatively young category in the wearable hardware world, but the Oura Ring seems to be a standout in terms of early success. The Oura Ring hardware is sleek and packed with sensors, allowing it to measure a user’s sleep patterns, take your body temperature and track activity, and now Oura has raised $28 million in Series B funding to bring on new key hires and product