If you use the fit file and save as track, then the data in this gpx file would be the same as the fit file.
Further explorer to these two gpx files with notepad and found that, the gpx file saved by fit file includes an additional statement - "TrackStatsExtension" like the following:
Code: Select all
<gpxtrkx:TrackStatsExtension><gpxtrkx:Distance>11505.000</gpxtrkx:Distance><gpxtrkx:TimerTime>21224</gpxtrkx:TimerTime><gpxtrkx:TotalElapsedTime>21231</gpxtrkx:TotalElapsedTime><gpxtrkx:MovingSpeed>0.699</gpxtrkx:MovingSpeed><gpxtrkx:MaxElevation>638.000</gpxtrkx:MaxElevation><gpxtrkx:MinElevation>10.200</gpxtrkx:MinElevation><gpxtrkx:Ascent>904.000</gpxtrkx:Ascent><gpxtrkx:Descent>874.000</gpxtrkx:Descent><gpxtrkx:Calories>417</gpxtrkx:Calories></gpxtrkx:TrackStatsExtension>
The GPSr or other applications seems to use the data in this statement instead of by calculation of the recorded data.
Don't know which one is more accurate.