I've just watched a short series on Amazon Prime called "Silent Eye" and it was shot on a Samsung Galaxy S8 (see here) . I remember seeing the film "Tangerine" that was shot on an iPhone and it's quite amazing that we still refer to this devices as "phones" . They can do everything in a hand held package.
I still think they are not ideal for watching a big film, but when they work on normal or holographic projection even that might be just another thing to do. As yet we can't use them to teleport (like Star Trek tricorders and communicators) but how near might that be, although that is something that has always philosophically confused me. If you are teleported then you need to be deconstituted and reconstituted so is the reconstituted you really you?
Obviously reading Stephen Hawking has got me (over) thinking big thoughts, but that is not a bad thing, and I've included "Star Trek Dreaming" by Spirit from "Future Games" for your enjoyment.