The word wide revolution in mobile is changing the authors' lives in term of the way they work, learn and interact. In this paper, an attempt has been made to review various existing generations of mobile wireless technology vis-?-vis in terms of their portals, performance, advantages and disadvantages. The paper throws light on the evolution and development of various generations of mobile wireless technology along with their significance and advantages of one over the other. In the past few decades, mobile wireless technologies have experience 4 or 5 generations of technology revolution and evolution, namely from 0G to 4G.Current research in mobile wireless technology concentrates on advance implementation of 4G technology and 5G technology. Currently 5G term is not officially used.