Dual band routers have two bands, 2.4GHz and 5GHz. The 5GHz band is faster and more stable, with the only downside being that it covers a shorter range than the 2.4GHz band. If you have many connected devices, you may benefit from a tri-band router, which has an additional 5GHz band to reduce network congestion. Finally, there are quad-band routers. These take advantage of Wi-Fi 6E to provide an additional 6GHz band for faster speeds and lower latency.