Mobile device, mobile phone or handheld electronic calls a smartphone over a large geographic area served by a number of public blood cells, allowing the user to be mobile. Instead, the phone is in use only within the limits of a private base station, for example, within the home or office.

A cell phone can make and receive calls to and from a public telephone network, which includes other mobile and fixed around the world. It does this by connecting to a wireless network provided by a mobile network operator.

In addition, the telephone, modern mobile phones support a wide range of other services such as SMS, MMS, e-mail, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, games and photography. For mobile phones that offer these general skills are called smartphones.

The first mobile phone was demonstrated by Dr. Martin Cooper of Motorola in 1973, using a device that weighs 2 kg. [1] In 1983, the DynaTAC 8000X the first to be commercially available. In the twenty years from 1990 to 2010, grew worldwide mobile phone subscribers from 12.4 million to over 4.6 billion penetrate developing economies and to reach the bottom of the economic pyramid.