If the SHTF, it won’t work for long, lol. Gotta find the book I read yrs ago about the same with a bunch of college students led by somebody(professor?) when “it” did hit the fan; kinda like “Red Dawn” movie.I got an older iPhone 4s that still works just fine. I use it as a tool primarily. GPS, MapQuest for driving directions, and my music. I keep it up to date and don't use it for very much. Just keep it so if the SHTF at least I might have access and a chance. But normally it stays on my desk waiting for me to use it...cr8crshr/Tuck
