Why do they call a cell phone a cell phone?

They are operated by batteries which is also referred as 'cell', that is why we call them 'cellphone'.

They call a cellphone a cellphone because it is small like a cell and it is a phone.

The retard that put forth the answer above is certifiable.

The correct answer is based upon the following facts;

Cell phones take advantage of an array of towers.

These towers form a grid called "cells".

Hence, the name "cellular phone".

Over time, that name was shortened to "cell phone".

Other names for cellphones include "mobile phones", or "mobiles", so called because of their portability.