Pew Internet and American Life Project.
According to the report, 53 percent of cell phone owners said they either owned a smartphone or owned a cell phone that runs a smartphone platform (meaning they perhaps did not realize that, say, Android was a smartphone platform). Pew said, "To be sure, there is still some confusion around this term, as 8 percent of cell owners are still not sure if their phone is a smartphone."
That confusion is lower than in May of 2011, the last time Pew took a look at smartphone usage. Then, 14 percent were not sure if their phone qualified as a smartphone.
Since 88 percent of U.S. adults own a cell phone, 53 percent among cell phone owners, means that 46 percent of all American adults own a smartphone. Meanwhile, 41 percent of adults own a non-smartphone.
In May of 2011, 48 percent of U.S. adults had a non-smartphone, with only 35 percent of U.S. adults owning a smartphone. At the same time, 17 percent had no cell phone, vs. only 12 percent now.
In terms of platform ownership, 20 percent of cell phone owners say they have an Android device, up from 15 percent in May 2011; while 19 percent say they have an iPhone, up from 10 percent in May 2011.
BlackBerry usage dropped from 10 percent to 6 percent, while Windows (Phone and Mobile) and Palm usage stays stable at 2 percent and 1 percent, respectively.
Pew surveyed 2,253 adults aged 18 or older, between January 20 and February 19, 2012.