Nowadays, the smartphone is an essential device in a juvenile’s everyday life. Teenagers spend a lot of time on it doing plenty of different things, such as chatting, surfing the internet, playing video games, studying and watching videos. Of the many different things you can do with these modern phones, there are some positive aspects and some drawbacks. In this essay, I will explain why children spend so much time on these devices, which are surely a positive development in modern society.