Is my WiFi 2.4 or 5 iPhone?

IPhone Users To verify your mobile device is set to a 2.4GHz Wi-Fi network, navigate to the Settings menu and click on Wi-Fi. In this menu you will see all detectable networks in your area. Locate the SSID for your network, the SSID should be denoted by either a 2G (2.4) or 5G (5) end notation.