There is a lot of variance in the distribution of phone capability. There is nothing scientific in my survey, just stuff I picked up. Most people have very basic phones about on par with: http://www.gsmarena.com/nokia_1202-2573.php

There are also a lot of feature phones that might have been normal in Europe around 2003-2005.

But there are also a large number of people (millions) who have smartphones. The dominant platform is the blackberry.