cell phone vs. smartphone

[WrigleyF]

This might be too basic a question, but at what point does a cell phone become a smartphone? When it has a touchscreen? When it has Internet access? Or some otehr defining characteristic?

[auryn]

You can think of a smartphone like a miniature computer that can also place and receive calls. The simplest way to tell a cell phone apart from a smartphone is to determine whether or not the device has a mobile operating system.

You can also check this article for more information:

Smartphone vs Cell phone LetsGoMobile (http://www.letsgomobile.org/en/3137/smartphone-cell-phone/)