smartscope duo 4K v1 versus v2

hello,

I can have a good price on used smartscope but it's only smartscope duo 4K.
I try to find differences between two generations of product, 4K and 4K2

thanks for help.

I read the datasheets of the two generations but only prices differs !
BMD support answered that they have no information

Is it only internal design change or a visible change as glossy panel to mat for smartviews