iPhone 6S 64GB in Space Grey.

Screen: nothing visible from a POV distance.

Top: a couple of tiny marks that would be hidden by a case.

Bottom: some small marks around the heaphone jack and speaker holes.

RHS: no visible marks from a POV distance.

LHS: some small marks on the top and bottom corners.

Back: no marks can be seen.

The Buy Sell Technology Ltd. testing procedures can be viewed here.