A mobile, or a mobile phone, is a portable electronic device that is used for communication and can receive and make calls and send and receive text messages and other forms of messaging, as well as access the Internet and various apps. Mobile phones, also known as cell phones or smartphones, have become an integral part of modern life and are used by billions of people around the world. They are typically small and portable, with a touch screen display and a variety of built-in features, such as cameras, GPS, and sensors. Mobile phones are powered by batteries and can connect to the Internet and phone networks through cellular data or Wi-Fi. In addition to making calls and sending messages, mobile phones can be used for a variety of purposes, including accessing the Internet, taking photos and videos, listening to music, and playing games.