This is a mobile phone in eXistenZ. No buttons. Squeeze to answer. It glows pink when it’s ringing, which is a feature driven by narrative so you can see it for a long time on the dark road after somebody throws the mobile out of the car window.
We’re working on mobile phone material prototypes at the moment, so I latch on to moments like this in films. It’s absurd, but it fits so well with the film that I don’t question it for a minute.