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This article is about the ‘talk of the decade,’ 5G technology. The one of the most awaited technologies, 5G, promises very high bandwidth and data rates with almost zero latency experience during video streaming, and very low latency supporting real-time applications like telemedicine, virtual and augmented reality and smart systems. When the technology till the 4 th generation were human centric, 5G is a blend of human and things centric services. In 5G, internet enabled things are promised with intelligence and smartness to make their own suggestions and at times even decisions. While 5G comes with a big bag of promises, there are several challenges that need to be addressed. There is also a technological evolution brimming around 5G mobile technology, which makes the 5G dreams comes true. The chapter points out the major hard milestones which must be crossed before reaping the full benefits of 5G. It also discusses one of the basic enabling technologies of 5G, the ‘Massive MIMO’.