Mobile device

A mobile device is an electronic device which its user can easily carry with them. Typical examples are a mobile phone, PDA and handheld game consoles. Mobile devices do not need an external power supply to work.^[1][2] Usually, they have a battery to hold electricity to work without electric wires. A user can change, send and move data by connecting to a modem or cable, or more often wirelessly. Mobile devices can be tracked by using mobile radio signals between different mobile signal towers by using GNSS.^[3][4]

Foldable smartphones using Android operating system

Smartphones and smartwatches

Uses for these devices include reading and writing e-mails, surfing in the internet and listening to music. Smartphones, tablets and similar complicated mobile devices can run computer programs including computer games, and have many subordinate functions of a desktop PC.

Examples of mobile devices

Using a tablet computer

• Palmtop
• PDA - Personal digital assistant
• Cell phone
• Pocket PC
• Smartphone
• Tablet computer
• Smartwatch
• Bluetooth headset

Categories

Mobile devices can be classified by size and capabilities:

• With small, text-screen. May be used to write short messages. 20th century mobile phones were like this.
• With medium screen and runs mobile operating system. Examples: Smartphone, E-reader.
• With big screen and runs desktop operating system. Examples: laptops, some tablets.