Whoop's fitness band is cool. Can it stay cool as the company grows? | TechCrunch

Last day to exhibit your breakthrough to 10,000+ tech leaders at Disrupt is on Oct 2. Book Exhibit Table Now. Disrupt doors open Oct. 13. Get your pass and bring someone with you at 50% off. REGISTER NOW. For the better part of a decade, Whoop sold itself as a secret weapon for serious athletes. LeBron James was convinced to slap on the company’s fitness band in Whoop’s first year. Michael Phelps came soon after. Other Whoop wearers include Cristiano Ronaldo, Patrick Mahomes, and Rory McIlroy. The message to the public? The world’s best performers track their bodies with this device, and you can, too. It worked. Whoop, the Boston-based health wearable company that Will Ahmed founded in his senior year at Harvard, now operates in more than 200 countries, and, according to Ahmed, grew revenue more than 100% last year, as well as reached cash-flow positive. The hardware — a band worn around the wrist, bicep, or torso — measures sleep, recovery, heart rate variability, and a growing list of biomarkers. The subscription model, which bundles hardware and software for between $200 and $360 a year, has proven remarkably sticky: 83% of monthly active users open the app on any given day, a r