More than one in 10 UK children have had sexually explicit conversations online, according to the annual Carphone Warehouse Mobile Life report.
More than a quarter of 11 to 18-year-olds (28%) have visited adult websites, while 11% of the same age group had been involved in explicit chats.
The survey of 6,000 adults and children in the UK and the US found 27% of young people had interacted with strangers online and 10% had met someone in person that they originally met on the internet.
One in seven UK children (14%) admitted to having felt uncomfortable in online situations.
Other key findings in this year’s report are that mobile phones have now replaced TV as the most essential piece of technology, according to respondents to the poll.
The day of the pen also now looks to be well and truly over with 50% of Britain’s young people now relying on SMS as their main form of staying in touch.
Not one young respondent to the survey said they used letters as a preferred means to communicate and only 2% of UK adults still use letters to keep in touch with friends.