christopher575 (christopher575) wrote,
christopher575
christopher575

Map vs Map

Got my new phone yesterday, so I tried mapping my walk using MapMyRun's app. Unfortunately, the GPS isn't super accurate (at least not in those neighborhoods with all the hills and trees) so the app ended up thinking I covered a lot more ground than I actually did. 

 

On the left, the app thinks I went 3.8 miles, but on the right, the course plotted on a map is 2.4. That's 42% extra. It also just about doubled the distance between my bus stop and office, though I can't plot that one on a map because I cut through a field and can't make the map do that. But I think it's about half a mile in real life.

I do like the MapMyRun site, though. It's much easier to plot on there than on plain Google Maps. Many thanks to porkchopblog for the tip! Hopefully there will eventually be a feature where you can correct the saved run to get rid of the extra zig-zagging they think you do. Makes me wonder about FitBit stats. Any FitBit users know if there are similar issues?
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