GoKawiilDual-band routers explained: how 2.4GHz and 5.0GHz Wi-Fi work together
Dual-band routers transmit Wi-Fi simultaneously on two frequencies, 2.4GHz and 5.0GHz, to spread device traffic across separate channels instead of one shared lane. The 2.4GHz band covers longer distances and passes through walls better but runs slower and gets crowded, while the 5.0GHz band delivers faster speeds and more capacity at the cost of range. Most modern routers automatically assign devices to whichever band suits them, though some networks still show separate SSIDs for each frequency.