5G is the proposed next generation of mobile networks that aims to offer higher capacity and speed than current 4G networks. 5G research aims to support higher device densities, more reliable communications, and lower latency. Key goals for 5G include data rates of 100 megabits per second for metropolitan areas, 1 gigabit per second for many workers in an office, and reduced latency compared to 4G. Development of 5G standards is led by companies like Samsung, Intel, Nokia, Huawei, and Ericsson, with the first 5G networks expected in the early 2020s.