At the height of the covid-19 pandemic, many wearable companies rushed to see if their devices could detect early signs of the disease. Now, four years later, Oura is officially launching a feature that can flag when you may be coming down with a respiratory illness.

“What we saw through all of the research and science that we’ve done is that your physiology actually starts changing a day or two before you start feeling symptoms,” Shyamal Patel, Oura’s head of science, tells The…