Boston-based wearable fitness tech company, Whoop, has raised $575 million in Series G funding at a $10.1 billion valuation. The round includes athletes, celebrities, and individuals such as Cristiano Ronaldo, LeBron James, and Niall Horan. Whoop provides wearable fitness technology and a subscription platform that tracks physiological data for insights. It has raised over $900 million since its founding in 2012. The company's model is different from that of many wearables companies, with members paying a subscription to access the insights. The firm now has over 2.5 million members globally and expects bookings to grow 103% year over year.