People seem collect different things ...
I just use one PND, a "Becker P50" and somewhere in the basement I still might have dumped my previous TT Go 700.
Certainly a smartphone with the inevitable Google-Maps that I have used a few times when nothing else was available. I tried Here-Maps (HERE WeGo) and OsmAnd+ recently, but I still like my Becker more.
For hiking, I prefer "apemap" on Android above all others.
I'm not sure this smartphone use will qualify as "GPS device" regarding to the thread question.
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