How is it possible for MFP to say that I've burned fewer calories throughout all of my steps, than my watch has actually measured using my heart rate? And which should I believe? I'm trying to be in maintenance mode so need to be sure I'm using the right numbers. MFP has then looked at my overall step count (13391) and has taken off 83 calories to give me a total of 163 exercise calories for the day. The first came up as 168 calories and the second as 78 calories. So today I have been on two (not very long!) walks and used the watch HRM for both. where the watch estimates my calorie burn as being higher than MFP would estimate based on steps alone), but I don't understand how this can be explained on a day like today. Activity Momma is reading some article about keeping romance alive in a marriage. I can understand this on days where most of my steps haven't been during activities where I've measured my heart rate (i.e. Integrates with Apple watch, Fitbit, and My Fitness Pal. However, MFP almost always does a negative calorie adjustment on the basis of my step count. when it's measuring my heart rate throughout) are pretty accurate.

It has my weight, height etc input and I tend to assume that the calorie count during any exercise (i.e. I wear my apple watch all day and use it to count my steps and as a HRM whenever I exercise - including when I go for walks (I select 'outdoor walk' and it monitors my heart rate and calculates my calorie burn accordingly).

Apple watch to my fitness pal