as the icon top bar and url bar are not in device mode size (same for ipad, etc)
But if I want to edit my own ‘real’ device mode preview I cant : top bar exists in portrait mode, but not in landscape mode (375x553 portrait and 667x375 landscape)
So I use a jquery script to have ‘real’ window size :
http://www.ycarry.fr/Docs/ecran
So v4 device mode preview is not a tool… its a gadget.
RSD 3.5 build 2979 on Window10 64-bit & RSD 4 build 3069 on OSX 10.14.6