5G technology stands for fifth Generation Mobile technology. From generation 1G to 2G and from 3G to 5G this world has revolutionized by improvements of wireless network. This revolution brought up some drastic changes in our social life .This paper also focuses on all preceding generations of mobile communication along with fifth generation technology. Fifth generation network provide cost-effective broadband wireless connectivity (very high speed), which will be probably 1gigbit per second Speed. The paper throws light on network architecture of fifth generation technology. Currently 5G term is not officially used. Fifth generation negotiate on (Voice over IP) VOIP-enabled devices that user will get a high level of call volume and data transmission. Fifth generation technology will be done all the requirements of customers who always want advanced features in cellular phones. The main features in 5G mobile network is that user connect to the multiple wireless technologies at the same time and can switch between them. This forthcoming mobile technology will support IPv6 and flat IP. Fifth generation technology will offer the services like Documentation, supporting electronic transactions (e-Payments, e-transactions) etc. Index Terms? 5G, 5G Architecture, Evolution from 1G to 5G, Comparison of all Generations.