see ultra-trac image - wild variation - fēnix 5 series - Wearables - Garmin Forums
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Some thoughts on Ultratrac mode - fēnix 5 Plus series - Wearables - Garmin Forums
Garmin UltraTrac Review and Data Accuracy - Ten Digit Grid
Why is my garmin doing this? I tried on normal GPS. Then GPS with glonass. And this was on ultratrac. The radius always shrinks and the error rate is as high as
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Garmin UltraTrac Review and Data Accuracy - Ten Digit Grid