One in four teens use cell phones as their device of choice when browsing the web, according to the study by Pew Research Center's Internet and American Life Project.
The survey of teens aged between 12 and 17 also found that 78 per cent have a cellphone, with nearly half of those being smartphones.
As compared to one in four young adults who are "cell-mostly" users, only 15 per cent of adults rely solely on their phones, 'Mashable' reported.
It is much more convenient for teens to check social networks or search for videos via mobile since they sleep with their phones on or near their bed, said Mary Madden, senior researcher of the project.
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"Unlike many adults, teens aren't sitting in front of a desktop or computer all day at work, so the different rhythms of daily life may be a factor influencing the different patterns of use," Madden said.
"In many ways, teens represent the leading edge of mobile connectivity, and the patterns of their technology use often signal future changes in the adult population," Madden said.
The study findings hold true across the economic status. Out of those who have Internet access, teenagers in lower socio-economic groups are just as likely - and sometimes even more likely - to use cellphones as primary access points for using Internet than teens in higher-earning households.