Write the next sentence in the following story.

How to choose an android phone
Select a cellular carrier that is currently carrying android phones.
Some carriers may have a carrier-specific version of android, which could ultimately impact your decision.
Decide between a multi-touch display, a traditional physical qwerty keyboard, or a hybrid; this will greatly narrow down your search.
Decide on the size and quality of the screen. Four inches has become the norm for multi-touch screens on smartphones, though they can go as big as five inches and as small as three.