A mobiltelefon, commonly known as a mobile phone or smartphone, is a portable electronic device used for communication. It allows users to make calls, send text messages, and access the internet. Modern smartphones also come equipped with various applications, cameras, and multimedia features, making them versatile tools for everyday tasks. The first mobiltelefon was introduced in the 1970s, and since then, technology has rapidly advanced. Today, these devices are essential for personal and professional communication, enabling users to connect with others globally. They also serve as platforms for social media, navigation, and entertainment.