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Open Water double distance

When I use my FR955 for Open water swims the GPS track looks fine but the distance is doubled. I could understand that it could struggle with keeping a GPS signal, but as this is not the case I cannot understand how the watch can be so much off. It sucks big time as it screws up all the swim related metrics. What do I need to change in the settings to avoid this? 

  • Hi,

    I have the same issue on FR955, on both versions 15.19 and 16.17.

    When activity is exported into Google Maps or Google Earth distance is different from Garmin, about 40% shorter.

    Looks like the bug is not in GPS or GPS recording but in UI distance calculation.

    , can you please look at the issue.

    Thank you.

    P.S: Interesting issue raises, if training affect and other metrics are calculated based on distance, it is a whole another issue.

     

  • Thank you for taking part in the Forum thread. In order to further assist, we'd like to gather more information: 

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  • Hello.

    Yes, yes, Israel.

    Please be aware I had manually fixed the distance. The rest of the data is intact.

    Thank you.

  • Although the requested permission to access account is not directed towards me you are more than welcome to email me, access my Connect account and I live in Germany for the record.

    As with Leon I also manually changed the distance. 

    The issue is quite annoying as it also means that the energy consumption is way off as the swim speed is super fast

  • Hello,

    I think I had found a remedy. It worked with 100% accuracy today - Garmin distance was perfectly matched with Google Maps.

    Here is what I did:

    1. Disabled auto lap and lap button. Inside open water settings menu, there is "Laps". I turned off everything.

    2. Waited for GPS lock, before starting the activity.

    There is a semicircle on the top of the screen when entering into activity, it is white and red at the begging, I had waited for it to become green.

     I'm happy now.

    Good weekend for everyone.