A fifth of 16 to 21 year olds spend 6 hours or more on their smartphone every day.
While just 3 per cent spent an hour or less, according to research by Young Social Innovators.
A third of young people surveyed admitted that posts of unrealistic beauty make their lives more difficult.
CEO of Young Social Innovators, Rachel Collier, says young people need to strike a balance with their smartphone use.
"If you're on the phone for six hours a day, you're likely to be taking time and energy away from other social interactions or relationships, or offline experiences," she says.
"We need to see this as kind of a balance between online and offline for young people."
