(2) The fifth generation of cellular service, superseding 4G LTE. Expected in the 2019-2020 time frame, 5G will increase transmission speed dramatically and embrace prioritization. As wireless data increases exponentially, real-time content such as video calling must be given a higher priority than Web pages. See cellular generations.
5g would be the fifth generation of telecommunication.
5G is defined as the 5th generation of mobile phone and data communication standards.
An example of 5G is how a research paper might refer to a means of mobile communication 20 years in the future.