Tizen OS is a mobile operating system. It was developed and released by the Samsung Electronics on January 5, 2012. Tizen is an open source operating system based on Linux. Tizen is compatible with most Samsung devices smartphones, watches, and cameras. Tizen OS supported with android apps. Tizen is written in HTML5. It is specially developed for Samsung’s devices. In the first look, Tizen looks like an Android OS but it is different than Android OS. Tizen OS comes with the all basic applications that a smartphone need and it also allow users to download applications from third-party websites. Samsung is updating Tizen day by day with new and advanced features.