Kids with smartphones and computers spend up to five hours a day using devices

Time spent using computers and smartphones increases from three hours a day at five years old to almost five hours in adolescence.

Teen tech users around the world spend up to five hours per day using a smartphone or a computer, according to a survey from security software firm Bitdefender. As kids grow up, time spent online almost doubles. 

According to the study, one in seven minors own both a smartphone and a computer. What's more, the time spent using these devices increases with age, from around three hours per day at age five to around five hours per day by age 17.