this was reported two months ago
mobile as komorke is in the other sentences
also, in Australia we see mobile rather than cell phone (have only heard that in the USA)
I think cellphone is an outdated word. mobile phone or just mobile is more normal today
Possible, but 'cellphone' etymologically is like the Polish word. 'komórka' in fact means 'a cell' as well. You can answer with "mobile phone" or "mobile".