A mobile phone, also known as a cellphone, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area. It is considered an important human invention and has become one of the most widely used and sold pieces of consumer technology globally. Mobile phones have evolved to offer advanced computing capabilities and are referred to as smartphones. They have become culturally symbolic and are often decorated with charms, serving as fashion symbols in some cultures. In addition to mobile phones, the term "mobile device" is a general term for any handheld computer or smartphone, including tablets and e-readers.
The term "mobile" can also refer to the capability of being moved or movable, as well as the use of vehicles for transportation. It can also refer to a construction or sculpture frequently of wire and sheet metal shapes with parts that can be set in motion by air currents, or a motorized vehicle.
In summary, a mobile phone is a portable device that allows users to make and receive calls over a radio frequency link, while the term "mobile" can also refer to the capability of being moved or movable, as well as the use of vehicles for transportation and other related meanings.