Because I wasn't well versed in the subject at the time, and made a choice I later came to regret.
I have the M100 with EF-M 22mm. Very pocketable and very sharp. Would recommend to anyone.
Why did you buy the m100 if it didn't have a mic input or viewfinder?
I had the predecessor, the M100, with the same 15-45mm. This is basically the same dimensions. It's definitely not pocket sized! Unless you're wearing baggy cargo pants. :)
This is a pocket sized camera. M50 isn't. And not everyone needs a mic input or viewfinder. I certainly don't and imagine there are others out there who don't either. If you find an equivalent speccd camera with 4k and 24mp sensor for a better price I will expire this deal. :) Also, for £400 you must be talking about body only, not with a lens. Also, this is not a refurb. This is open box and mint condition.