Well, I would be impressed if you use both. I did with SIMless Samsung Galaxy S6 edge and iPhone 6S used for QA testings.
Ditto. I still use many very old stuff like Casio Data Bank 150 watch, iPhone 4S, VGA, DVI, KVM from Y2K, PS/2, analog speakers, etc.
Real Users are afraid they'll break the machine -- but they're never afraid to break your face.