5G is future of wireless communications which is going to transform how wireless devices (mobile phones, cars, sensors, IoT) communicate with each other. In this presentation, we will focus on how 5G is transforming wireless field in general and cellular field in particular. We will start form 2G and discuss how cellular communication has evolved from 2G to 3G, 4G and now 5G. We will discuss how 5G is enabling technologies that are far from cellular domain and are moving to IoT (internet of things). We will also dwell on what challenges 5G is facing and how we can overcome those challenges.