When Your Fitbit Goes From Activity Tracker to Personal Medical Device

When Your Fitbit Goes From Activity Tracker to Personal Medical Device

Fitbit spent its first decade selling activity trackers. With its latest moves, the company is starting to look less like a gear maker selling pricey accessories to fitness buffs and more like a medical-device company, catering to hospitals, patients, and health insurers. The company’s business-to-business arm, called Health Solutions, is now addressing four health conditions—sleep …