Normal throwaway useless phone with no data network that i use just for calls / texts, i do have also a bunch of Samsung devices around on which i used to develop exploits and rootkits but those are closed in a metal cabinet

i DO have a smartphone for myself with those faceshit and other apps installed, don't take me wrong, but a) i don't use it nor anything of those apps anymore, just whatsapp by time as some in family are hard to understand tech and it's easier than staying there trying to explain them what they do with our data, b) i do use it for banking apps and similar needed ones, but that's isolated

But if i need to communicate or send something securely and privately, i do that tru from my servers, not surely via shitty highly backdoored phones.

Btw just FYI, before someone says it, an iphone is not 'non-hackerable' , simply, exploits are harder to code as also some hardware needs to be reverse engineered, but when you put your hands on a 0 day marketplace, you'll see there's enough shit there as well to make it useless