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Garmin 60 mileage log innacurate?

Former Member over 15 years ago

My Garmin 60 consistently logs around +10% miles (over a 10-12 mile walk) relative to my Tracklogs digital mapping software and, more interestingly, a friend's GPS. So on returning lto the car last week we both set our logs going at the same time and measured against the car mileage. At 11 miles we were both within 0.1m of the car and each other! So why do I measure more on a walk? Is there a 3D effect (ups and downs) that computes differently on different makes of GPS?

0 dcrainmaker over 15 years ago

Did you calibrate the watch?

Also, have you tried re-calibrating it? And, was the pace you ran it at significantly different than the pace you calibrated it at?

I've found mine to be within .02 per mile, at varying paces. I had calibrated it using a track at 800m.