Fitbit can already tell you how far you've run, how well you're sleeping and how stressed you might be. Now, it wants to help you better understand the nuances of those readings, such as why certain ...

Anyone who exercises regularly -- or at least tries to -- knows that every day is different. After an exhausting work trip, for example, you probably aren't as ready for a workout as you would be ...

Minnetonka, Minn.-based UnitedHealthcare added the Fitbit Charge 2 fitness tracker to its employee wellness program. The wellness program — called UnitedHealthcare Motion — is an employer-sponsored ...