Active Calories VS Total Calories during a workout I'm fairly new to the Apple App- I was a Fitbit user and Fitbit reflected Fat burn, active minutes and Peek time during a work out.  Apple app reflects Active Calories and Total Calories during a work out and I am not able to find an answer to define the difference.  what is the difference in a work out from Active vs Total.  I am still on the fence about this app, fitbit showed when during my work out my heartrate increased, and clearly reflected the calories -
Active calories are a result of your activity (running, swimming, etc.) only.

Total calories take into account how many calories your body consumes during that period of time (just to keep you alive) as well as the active calories.