I am using the latest version of Collector on a Google Pixel 2 (Android 8.1) and an iPad (wifi version) on iOs 10.4.1. When I use the Garmin Glo external GPS on the Google Pixel 2, Collector reports an accuracy between 5 and 6 feet. If I connect the same Garmin Glo to the iPad at the same time, Collector reports an accuracy on the iPad of 16 feet.
In both instances I know Collector is using the Garmin Glo's position, as I can walk away from the Glo and my position on the map does not change.
So why the difference in reported accuracy between the android and apple devices using the same external GPS?