A smartphone (or smart phone) is a mobile phone with an advanced mobile operating system. Smartphones typically combine the features of a cell phone with those of other popular mobile devices, such as personal digital assistant, media player and GPS navigation unit. Most smartphones have a touchscreen user interface and can run third-party apps, and are camera phones. 2012 and later smartphones add high speed mobile broadband 4G LTE internet web browsing, motion sensors and mobile payment mechanisms.
In 2014, sales of smartphones worldwide topped 1.2 billion, which is up 28% from 2013.
==...