• I guess that makes sense, I kind of thought with having the map and the speed sensor it could
    generate a more plausible track. I don't know where I saw it but I remember an app or tracker
    that could snap to streets.

  • What you’re looking at looks like the raw data - it’s pretty noisy and full of jitter.

    Strava and other online services will almost always clean up your track by applying some signal filtering and snapping to roads if that’s an option.

  • A speed sensor could improve position tracking, but I've never been clear whether Garmins actually do that.

    They do have 'Lock On Road' option but I believe it only affects where your current position is shown, and not the actual track it stores.

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