Cellphone GPS Tracking software with graphs for training

[mongoose_dude]

So how accurate are the altitude profile readouts that you get from cell-gps? Most actualy GPSs have barometer based altimeters because the gps altimeters aren't very accurate...

 

Any input on this?? Would be interesting

[jatho]

So how accurate are the altitude profile readouts that you get from cell-gps? Most actualy GPSs have barometer based altimeters because the gps altimeters aren't very accurate...

 

Any input on this?? Would be interesting

 

Without an altimeter accuracy will be within 2-5 metres, depending on the signal you're getting to the satellites.