that's exactly what I do, tbh, I just didn't wanna sound too paranoid, lol. the second one doesn't even have to be running on graphene, lineage would do the trick. leave pixel at home, go out the other. and now that I'm paranoid enough, I must confess: I have a third one, a cheap ass one only to use as a hotspot when I go out. as we have lotsa robbery here, it also serves as "thief's mobile".