both are fine, though having a XS with only around 2000 shutter count is surprising. the e mount is dying, which is good and bad, bad it means they will end up stop making lenses for it and there will be no uprade roadmap, good is that means there might be many chances the lenses get cheaper and there is already alot of choices for lenses.
ef-m has a really limited amount of lenses, good part is you can get first party adapter mount for ef to ef-m