Nokia Symbian

The Symbian is an OS Nokia uses in most of its low-end mobile phones. This is not a closed source OS, but a company must take permission from the developers before using it. Thea upgraded version of the Symbian can run on the smartphones. The user-friendly character and the superb design of this OS make it the ideal OS for use in any phone.  Microsoft Windows RT The Microsoft Windows RT is an operating system that the Microsoft created for use in thin devices and for use in devices run on Windows 8. The preloaded OS is only available in devices specially designed for this operating system. The long battery life, the integration of a version of MS Office and the support it offers to many USB devices and other accessories are an exceptional feature of this OS. Ubuntu Touch The mobile version of the Ubuntu OS is the Ubuntu Touch. The touch user interface of this OS is based on the QWT-5. This OS uses many other software frameworks that were initially built for the Meego and Maemo. The flexibility of the OS allows its use in Android phones. Microsoft Windows Mobile Microsoft developed this OS for use in its smartphones and pocket PCs. Although it gained popularity with the user in the early years after its introduction, its popularity declined after the coming of Android and iOS. The company does not produce ant devices with this OS after it stated the developing the Windows Phone. Judge Your Requirements Many other operating systems are available out there. New and old companies are developing operating systems that can go with all kinds of mobile devices. Going by the popularity of an OS is not the right decision. You must buy a smartphone that has an operating system that can meet your demands and requirements.