Whoop aims to evolve from a tool for elite athletes into a life-saving health device, adding medical features amid rapid growth.
Whoop, founded by Will Ahmed, began as a fitness band for serious athletes, attracting users like LeBron James in its first year and later Michael Phelps, Cristiano Ronaldo, Patrick Mahomes, and Rory McIlroy.
The company, based in Boston, now operates in more than 200 countries and reported over 100% revenue growth last year, achieving cash-flow positivity with a subscription model priced between $200 and $360 annually.
Key Features and Expansion
Whoop's device measures sleep, recovery, heart rate variability, and other biomarkers, with 83% of monthly active users opening the app daily, making it highly sticky compared to other wearables.
The company has launched medically cleared features including ECG monitoring and atrial fibrillation detection, which identifies irregular heartbeats, as well as blood pressure insights, though it faced a U.S. FDA warning letter last summer challenging the feature's classification.
Whoop partnered with Quest Diagnostics, allowing members to upload blood test results into the app for review alongside device data, and introduced a Health Span feature to calculate biological age, which became the company's most popular addition since its launch in May of last year.
The device has no screen or notifications, designed to be worn discreetly with other watches, and the company's apparel line grew 70% last year.
Women are Whoop's fastest-growing user segment, and the business is now roughly evenly split between the U.S. and international markets, with shipments to 60 countries. Competitors like Oura are pursuing similar strategies, but Whoop emphasizes organic adoption by athletes without equity incentives.
