>MFT sensors are only about 32% smaller than APS-C sensors, and since APS-C sensors are the inferior 3:2 aspect ratio, the expanded size is almost entirely on the lateral ends of the frame where extra pixels matter least.
>The SnR of APS-C sensors is virtually imperceptibly different from MFT, since they share nearly the same pixel pitch.
>Fuji cameras are well known for their lack of competent IBIS, Olympus has the best IBIS in the industry.
>Fuji cameras are well known for their lack of competent video, Panasonic and Olympus (at least the EM1.2) are the standard for portable 4K video in the industry.
>Fuji cameras are well known for their typically slow and inaccurate autofocus performance, especially in low light or tracking even moderate action, where Olympus is known for having literally the fastest and most accurate SAF and CAF modes in the world, including AI subject identification modes
>Fuji cameras are not well known for their weather sealing, which is vastly inferior across their entire product line (even their "WR" designated lenses). Even mid tier body and lens offerings from Olympus (and to a lesser extent Panasonic) have best in the industry weather sealing. See Jared Polin's video of him showering with the EM1X and 12-100 F/4 Pro as an example.
>Fuji X mount has extremely poor third party support. Micro Four Thirds is second only to Sony in third party support, and only marginally so (MFT still has a significantly larger native lens library than E mount, just from Olympus and Panasonic).
>Fuji lenses are typically known for having obsolete, loud, and slow AF motors. Olympus pioneered the MSC system which offers immediate, perfectly silent focusing.
>Fuji lenses are typically significantly larger and much higher priced than MFT lenses, especially for zooms and from short telephoto up.
>Fuji lenses are typically optically inferior to lenses offered by Olympus and some Panasonic lenses, from kit lenses all the way to the highest priced lenses
