Can Fitbit interpolate Fat Mass between data points?

[nickpt]

I get caliper body composition testing approx every 3 months to get more accurate data about mass distribution. I was wondering if the sudden change in body fat percentage when logged - eg from 20% to 15% after 3 months - would result in a sudden 'step' down in my logged data, or if there was a way to interpolate / gradient between two data readings to get a better sense of how composition changed over time.

[LZeeW]

@nickpt   I apologize if I am misreading what you wrote.  But let me tell you what I know about how Fitbit manages weight and body composition data.  Are you aware that your weight graphs include a Lean vs Fat graph?  Tap you your weight tile, then swipe left on the weight graph.  Swipe left again to get to your Body Fat % graph.  You can manually enter your body fat percentage any time you manually log a weight.  When there is a time gap, like your 3 months, the Fitbit app just draws a straight line between the two data points.  Does this answer your question?

I also want to add that Fitbit uses the Mifflin-St. Jeor equation for estimating your BMR calories.  It doesn't use body fat percentage in the equation, so it doesn't recalculate BMR calories with a change in body composition.