There are various frequency ranges available for WLAN. One frequency is, for example, the 2.4 GHz frequency. 2.4 GHz is the main or standard frequency. There, the distances between so-called channels are very small. In the 2.4 GHz frequency band, for example, there are only three overlap-free channels available.
The 2.4 GHz frequency band is used by many households and in many apartment buildings. In addition, other devices beyond the router, such as microwaves, Bluetooth, cordless phones, and others, use this band. As a result, there is often a high WLAN load in the 2.4 GHz frequency band and therefore a lower data rate. But the 2.4 GHz frequency band not only has disadvantages. Although this frequency band may cause a lower speed, the 2.4 GHz frequency has a very long range and can operate many devices at the same time.
However, if too many devices are connected to the 2.4 GHz band at the same time, the WLAN may slow down or interfere.
The 2.4 GHz frequency band is more crowded compared to the 5 GHz frequency band because it is used by more devices and only 11 channels are available instead of 23. The number of channels that are available depends on the WLAN regulations in the region.
In general, the difference between 2.4 GHz and 5 GHz is in range and speed. If a wider range is required, the 2.4 GHz frequency band should be selected. When higher performance or speed is required, for example in streaming or gaming, the 5 GHz frequency band should be used.
