About 46% of adults in the US own smartphones, an increase of 11 percentage points from 2011 to 2012. The Android platform is the most common in the US, with 20% of cell phone owners claiming to have Android phones. About 19% own iPhones, and 6% use Blackberries. Adults in the 18-29 age bracket are most likely to use smartphones. About 13% of people older than 65 own a smartphone.
More about smartphones and cell phones:
The US ranks third among countries in cell phone usage: China had more than 1 billion mobile phone users as of 2012. India was not far behind, with about 920 million users. By contrast, the US had less than 350 million cell phone users.
There are about 6 billion cell phone subscriptions in the world, including 4.5 billion in developing nations.
About 8% of cell phone users in the poll said they were not sure whether they were using smartphones or a standard mobile phone.