Xperia xz3 whites grainy

[Android Central Question]

Hello
I just bought an xz3 and I can notice on light colours especially whites I can see a grainy, paper effect.
My last phone an xperia z5 the whites were very clear.
It seems on the Internet some people say it is normal others say it is faulty.
Does anyone know if the grainy whites are meant to be there or not?
Thanks.

 

[B. Diddy]

I moved this to the XZ3 forum for more specific traffic.