Smartphone Ownership 2013, by Aaron Smith, June 5, 2013

“For the first time since the Pew Research Center’s Internet & American Life Project began systematically tracking smartphone adoption, a majority of Americans now own a smartphone of some kind. Our definition of a smartphone owner includes anyone who says “yes” to one—or both—of the following questions:

• 55% of cell phone owners say that their phone is a smartphone.
• 58% of cell phone owners say that their phone operates on a smartphone platform common to the U.S. market.”