Have you seen the size of that thing? that's 48x18cm, or 20" diagonal. That's not even close to the phones. And yes, thing thing _could_ have been implemented

Have you seen the size of that thing? that's 48x18cm, or 20" diagonal. That's not even close to the phones. And yes, thing thing _could_ have been implemented as a embedded large-format Android tablet with the kiosk mode app, installed in a wall-mount case. This would likely be more expensive to produce, and would look worse. In other words yes, you can cut paper with knife.