Canon R10 or Olympus EM1X ?

Decided i should get a Mirrorless Camera as i like to attend Airshows and my Nikon P1000 is not the best at that type of photography.

Narrowed it down too the Canon R10 & Olympus EM1X based on Price/Autofocus/Speed etc

The Olympus i would be buying second hand, The Canon new or second hand.

As far as i can tell the Canon might have a edge in AF ? But the Olympus has quite a few advantages like Weatherproofing, Battery Life, Procapture, more Lens options, IBIS, and so on.

The R10 is a small entry-(ish)-level plastic model, whereas the EM1X is a big "pro" model with metal frame. Much different ergonomics.

You should really test both for yourself, with appropriate lenses.