Not only mobile phones are effective but the two main components that make up a mobile phone has their advantages. There is an advantage of using OLEDS for screen light such as the energy efficiency provided and how thin it is to be able to fit in a mobile phone (Whelan,
Nowadays, millions of people owned have at least one smartphone around the world and the entrance is increasing explanatory rate (ITU, 2015). The power of a smartphone in 2010 has been smarter and sophisticated in 2005 (Roshan, 2010), such as Europe, Middle East, Africa, Asia/Pacific countries customers more use, its highest rank of the smartphone market. Because of smart Band is one of the reasons and also sophisticate the worldwide smartphone market. Its operating system standard in this picture shown. Now days, most of the cell phones are addressed as ‘smartphone’, as they offer more advanced capabilities to make a voice call, video call, SMS, and MMS, smart phones has been as a new technology.