Fitness Levels on Smart Watch

[Fitbit50]

I wear a Fitbit Versa. My fitness score has changed from 37 (very good) - 62 BPM to 34 (Good) - 57 BPM. I’m jogging and feeling fitter but Fitbit is not reflecting my fitness levels. Anyone having the same trouble with their Fitness watch? Any recommendations for best watch? I’m starting to thinking Apple maybe better......

[linda9389 Graduate]

I moved from Fitbit to Garmin a couple of years or more ago. I think Garmin is a much better running watch (although fitbit was more accurate on sleeping 😍), having said that the VO2 max figure and how it changes after a run is a very inexact science and to be taken with a pinch of salt. Resting heart rate measurements I have found to be reasonable with both though.