Similarly, the operating system that we use, not just Windows, but there are also MacOS or Ubuntu and others. Smartphone or table also has a powerful operating system to support a variety of applications and user needs. Sometimes the problem is becoming mainstream for us when they wanted to buy the phone. Often confused to select "phone with the operating system what is right for me? '. Maybe ago when the phone is not much choice of operating system, we just stare at the phone with the Nokia brand only. However seems now the" smart phone "started popping up for make the right choice. Lets see some choice of operating system that we can consider.