I carry around a Pinephone with my personal SIM and use it for most personal activities. I also carry about a work phone, which I use for work, and personal activites that I can't yet do on the Pinephone (maps, chromecast, etc.) It's liberating to have plain old Linux on my phone. My phone is now introspectable, behaves like my other computers, and only runs software that does not track me. I hack on these and am exc…
Can you explain why you have to use a different phone for maps? Couldn't you use a browser? Or do you mean navigation? And is the GPS device optional or always included for all pinephones?
I think GPS is always included on all Pinephones: https://wiki.pine64.org/index.php/PinePhone#GPS_.2F_GNSS