From Longman Dictionary of Contemporary Englishcellular phoneˌcellular ˈphone noun [countable] especially American English TCTa telephone that you can carry with you and use in any place SYN mobile phone British English
Examples from the Corpus
cellular phone• Many of those who initially looked at the handyphone were disappointed because they thought it was the same as a cellular phone.• The average monthly bill per customer is declining as the industry woos newcomers who want a cellular phone mainly for emergencies.• Their strategy was overheard on a police scanner that was able to intercept cellular phone transmissions.• But off premises, the pocket phone operates as an ordinary cellular phone.• Pop open a briefcase or peek in a backpack and you may see a sleek cellular phone.