SAN FRANCISCO--(BUSINESS WIRE)--Fitbit Inc., the global leader in the Connected Health and Fitness category, today announced it has agreed to acquire FitStar, one of the largest platforms for delivering personalized video-based exercise experiences on mobile devices. Users will be able to track their daily activity with leading Fitbit devices and then get a tailored exercise program designed specifically for them with handcrafted workouts from fitness authorities, including football legend, Ton