cellular phone vs mobile phone

cellular phone and mobile phone both are nouns.

Word	Noun	Adjective	Verb	Adverb
cellular phone	Yes	No	No	No
mobile phone	Yes	No	No	No

As nouns, cellular phone and mobile phone are synonyms defined as:

cellular phone and mobile phone: a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver

Other synonyms of cellular phone include cell, cellphone, cellular telephone.

cellular phone (noun)	mobile phone (noun)
a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver	a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver