Samsung Galaxy GPS - Is it accurate?

in #sport6 years ago

Do you use your smartphone to track your workout? Do you think your smartphone GPS is accurate? Well, I am not so sure. Here is a very simple comparison between a Samsung S6 and S7 using Strava to track a 15 - 16 km run I did twice this month.

I recently upgraded to a new Samsung phone. A Galaxy S7 (I know it is not new, but it is a company phone and that is what they had on stock). My old phone was a Galaxy S6 so it is an upgrade for me anyway.

I usually track my workout sessions with the Strava sports tracker. Using the GPS in the phone, you get a nice overview of your run, speeds at various segments and of course comparison against other people.

So here is the first tracking in Strava (with the S6)

3x A topp S6.jpg

And here is the second (S7)

3xA topp S7.jpg

Notice the difference? Apart from being a little bit slower (1 min) on the first go, I somehow ran almost 1.3 km shorter on the second! That is almost a 10% variation between identical routes with different phones. I now started to think that maybe all my previous results have been to optimistic. Am I right?

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I also think my smartphone GPS is not accurate. So I use my GPS watch to record my running log.

Is your GPS watch more accurate than the smartphone GPS?

Yes, I think so.

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