Nowadays, the smartphone has become one of the most important means of communication. Smartphones have many functions that provide people with a lot of conveniences. For example, if you can't find a road, you can turn to your phone to google the map; if you encounter a new word in the book, you can also find the definition on the smartphone. When you want to have a little talk with your friends, you can turn to your phone and call them. It’s so useful that some people take their phones with them wherever they go.
Each coin has two sides, so it is with a smartphone. Some people are addicted to their phones that they can not even focus on their work. Some people even spend most of their time on smartphones playing games and personal blogs. I think people should use smartphones wisely. Don’t be the salve of it, but make the best use of it.