Modifier Phone size

Bonjour, comment modifier la taille en pixel de mon telephone, merci

You mean you want to change this? (like the pixels in the brackets?)
Screenshot from 2023-06-06 20-17-05

yes

The power users might know better, but as far as I know, you can't do that in AI2

But it is possible to like change it to the size of a tablet and monitor.

possibly use Classic Theme and set Sizing to Fixed ..The app will fill a Tablet or a cell screen