If true,It might be that the phone isn’t the thing being experienced. 

For example I’ve had a period where I literally dreamed about league of legends because I was playing it so much, but I didn’t dream about my computer or my keyboard and mouse, I dreamt about the game.

It might be that the phone is just the window to the actual experience, so we don’t reference it in our minds as the phone, we reference it as “that asshole who said this,” or “that crazy video”, etc.

(I also have no memory of ever dreaming about my phone for what it’s worth)