The smartphone is a mobile device that allows people to do a variety of things, such as search the Internet, shop online, or even pay online. In addition to these advantages, the most important impact of the smartphone for me is that it allows people to connect without distance limitations. Because my mother is a tour guide and often leads a group abroad, she can't accompany me. Therefore, that is a good tool for us to connect through text messages or make phone calls. However, the smart phone is a double-edged sword, which brings people countless help but also makes people addicted to it. Nowadays, many people are addicted to their smartphones. Even if their family or friends are with them, they just playing their phones without communicating with them. As smart users, we need to properly arrange the time to use the smartphone and seize the opportunity to be with family or friends, not waste it all on playing on the smartphone.