The WiFi frequency range is the range of radio frequencies used by a WiFi network. The range is typically from 2.4 GHz to 5 GHz.
The benefits of a wider WiFi frequency range include increased data throughput and longer range. By using frequencies in the 5GHz band instead of the 2.4GHz band, 802.11ac devices can offer up to three times the data rate of 802.11n devices. In addition, 5GHz signals have shorter wavelengths than 2.4GHz signals, so they can provide more even coverage in homes and offices where there are obstacles that block or absorb signal waves. Finally, because more non-WiFi devices operate in the 2.4GHz band, using 5GHz frequencies can help reduce interference from these devices
The 802.11ac standard uses a wider WiFi frequency range than the 802.11n standard. The increased frequency allows for more data to be transmitted in a given time period, resulting in increased data throughput. This is why 802.11ac is often referred to as 'gigabit WiFi'.
The 2.4 GHz band is a crowded space because it is unlicensed and many common household devices like microwaves operate on this frequency. This can cause interference for your WiFi signal. The 5 GHz band has much less traffic and therefore offers shorter, but more consistent range for your devices.