Re:Offline Is Just Online with Extreme Latency
by saltcured on Thursday April 20, 2023 @03:26AM
(#35637299)
Garmin watches do! Go into the System -> About menu and there is a page showing ephemeris status.
Their documentation states that this may expire after approximately 30 days or if you travel more than 200 miles, while it will update during syncing.
I've seen it expire in less than two weeks with daily use of GPS but phone syncing disabled. It will still get position, but it can be the difference between an almost immediate fix after opening an activity menu or a delay for tens of seconds to minutes. Distance and pace measurements also seem to be lower quality when operating without a current ephemeris file.
Their documentation states that this may expire after approximately 30 days or if you travel more than 200 miles, while it will update during syncing.
I've seen it expire in less than two weeks with daily use of GPS but phone syncing disabled. It will still get position, but it can be the difference between an almost immediate fix after opening an activity menu or a delay for tens of seconds to minutes. Distance and pace measurements also seem to be lower quality when operating without a current ephemeris file.