As the cellular technology is growing at a rapid pace, users always seek for a set of appropriate packages all together, including all the current features in use. Hence, the search for a new technology is always the main concern of the foremost cell phone companies to out innovate their competitors. The main purpose of the fifth generation wireless technology (5G) is formulated to design the ultimate wireless world that is free from limitations and impediments of the previous technologies. 5G technology will mend the way most users access their mobile networks. So, this paper presents the evolution of 1G (First Generation) to 4G yielding 5G, introduction to 5G technology- its need, advantages and architecture.