er, for me.

Flat is Airasia
Apartment is Airasia premium

service apartment always about 500-1000sf, and with the ''serviced'' title, normally means they charge u higher maintenance fees for sinking la , security la, and bla bla.
but for condo, there goes another type call service serviced condo for example ''Koi Prima'' , 1000-1500sf. their similarity is = partly furnished or fully furnished.

so, for i am thinking the difference between serviced apartment and condominium.
one is the money u pay is include the furniture and u have to bear higher maint fees.

the condo, is empty house when u move in, then have common facilities like swimming pool , bbq and so forth ~