Nowadays, the smartphone is growing rapidly. Many people now change their cellphones to smartphones, because they help a lot of benefits for them. However, many people also become victims of this smartphone. In this essay, I will discuss the benefits and harms of smartphones. Smartphones have many benefits. One of the benefits of smartphones is communication media. For business people, smartphone facilities are needed because they have very high mobility to run a business with clients or browsing in any place that has Wi-Fi internet access. Usually smartphones are equipped with the ability to connect to the internet faster, so smartphone users can download various things from the internet they need to do their jobs. Android smartphones have the ability to be able to open almost any site that can be opened with a computer. People can enjoy the website they want to open, social media and e-mail is enough to use an Android Smartphone. So that makes it easier for people in their needs to open a website of choice that they want to open without having to bring a computer or laptop Conversely, smartphones have many disadvantages. The fact is that smartphones are addictive. For example, in class they are learning when their cellphone rings or vibrates, surely they want to open it and learning will be interrupted. Also, the adverse effects of cell phone radiation, some studies show cell phone radiation can trigger brain tumors and insomnia. Too often staring at cellphones can also cause nausea and headaches. In conclusion, I believe smartphones help people in communication, business, entertainment. However, smartphones also have many negative sides. Therefore, use a smartphone for positive things.