GPS Accuracy

Hi all,

I'm sure you've seen similar posts and I can only apologise. I've looked at previous threads and cannot find a resolution.

I've done about 15 runs with the Garmin Forerunner 255 and it's driving me insane, during a run it's sporadic and gives me extra distance as you can see below. This happens every run. I've tried changing satelitte settings, restarting it just before I go out. I wait for GPS. Genuinely don't know what to do. Right now there's no point in using it.

Just one example below of many


Appreciate any suggestions!

  • Fenix 6 owner here, so not sure how good my advice will be.

    I believe that 255 has something that auto-switches amongst the available satellite-based navigation systems (ie GPS, GLONASS etc). If it's enabled, I'd try to disable it and use only GPS. If it was disabled, I'd enable it.

    If everything fails, I'd contact Garmin support...