Originally posted by luftfluss Not "unique"... Nikon's top-tier APS-C DSLR, the D500, also lacks a movable LCD screen, as does their premium sports/action DSLR, the D6. Canon's top sports/action DSLR, the 1DX MkIII has a fixed LCD, too.
About the D6/1DXiii, those are completely different beasts I'd argue.
The better example would be Canon's 5D series which still has a fixed screen (okay, the Mk4 is getting older but that's what it is).
Oly has a tilt screen on their dual-grip brick, in contrast with Canikon. It might have to do with the fact that the E-M1X with a long lens is still fairly small and light while the Canikons need a sherpa with a 400mm lens attached