A Pew Research Center study released on Monday indicated that 35 percent of US adults own smartphones as the Internet is increasingly being accessed using gadgets on the go.
A quarter of US smartphone owners claimed to do most of their online browsing from mobile devices, according to the study conducted from April 26 to May 22 of this year.
The research found that 35 percent of smartphone owners had handsets powered by Google-backed Android software, while iPhone and Blackberry devices were each used by 24 percent of those interviewed.
Android smartphones were common among young people and African-Americans.
Blackberry and iPhone users tended to have relatively high income and education levels, according to the study.
Overall, smartphones were owned by the financially well-off, college graduates, non-whites, and people younger than 45 years old, the research concluded.