Now that the iPhone 6 has 802.11ac , users can set an iPhone to the 5GHz band and make it part of a QoS strategy to improve performance on a network.
Read moreHow do I turn my 5G off?
Turn Off 5G on Android Smartphones and Tablets To turn off 5G, go to Settings > Connections > Mobile networks > Network Mode and select any of the options that do not say “5G” in the title .
Read more