> Mobile doesn't have 4K screens . . .
The Sony Xperia 1 series does (along with a headphone jack, microSD card support, notification LED, a hardware camera button, no hole in the screen for the front camera, etc.).
The Sony Xperia 1 series does (along with a headphone jack, microSD card support, notification LED, a hardware camera button, no hole in the screen for the front camera, etc.).