5G is becoming a strategic priority for telecom operators. It is expected to embrace and integrate partially existing and partially new innovative technologies, as well as accelerate the digitization of the economy further due to its ability to transmit large volumes of data with low latency in real time on a massive scale. Users will continue to expect new services such as augmented reality and immersive customer experience based applications built on high-speed, low-latency communication, with imperceptible resulting delay, jitter or interruptions. In 5G, the potential for success is higher, however, the risks are also bigger. In this article, Karim Taga, Glen Peres and Richard Swinford at Arthur D. Little, identify and discuss five deployment models, that operators are considering or using for 5G deployment.