
iOS: ETA wildly off when following a GPX track (73 hrs for 179 mi), while a Pixel shows 2 h 43 min with the same file
On my iPhone, following a GPX track in Car profile gives 73 h 29 min for 179 miles. That's about 2.4 mph, basically walking speed. Screenshot attached.
A Pixel using the same GPX file shows 2 h 43 min, so the file itself seems fine and the problem looks specific to my app's settings. That said, the Pixel's 66 mph average also seems optimistic for a back-roads loop. So I'm curious what actually drives the estimate when following a track.
Questions:
- Is there a setting that controls how remaining time and ETA are calculated for a followed track, such as a default speed in the profile?
- Does attaching the track to roads switch the estimate to real road speeds?
- What settings should I compare between the two phones?