The Nikon Z8 is rumored to be approximately the same size as the Nikon D850 (just slimmer)

I received some information that the height and length of the Nikon Z8 camera will be approximately identical to the Nikon D850. Of course, being a mirrorless camera, the Z8 will be thinner/slimmer than D850. For visualization, here is the Z7 next to the D850:







This brings the question – why is the Nikon Z8 so much bigger than the Z6/Z7? What kind of functionality and hardware will the Z8 have that requires a size similar to the D850? The current set of rumored specifications does not really answer this question (except for the 8k video maybe):

Please note that the above Nikon Z8 specifications are collected from multiple sources over time and I am 100% sure some of them will not be correct.

If you have any information on the Z8, you can contact me anonymously here or post them on the new Nikon Z8 Facebook group.

Nikon Z8: what we think we know so far