One of the main differences between 2.4 GHz and 5 GHz WiFi frequencies is the range they provide the 2.4 GHz band covers a larger area and provides a longer range.
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Accordingly, if you need your WiFi network signal to reach a large area, it is best to opt for 2.4 GHz. For example, a holiday resort with bungalows and camping areas. Possibly, you can still switch to 5.8 GHz, but in this case, you need to configure more access points to broaden the WiFi signal.
Compared to the 2.4 GHz band, 5.8 GHz provides a lower coverage. When the frequency increases, its ability to penetrate solid objects decreases. But at the same time, the higher the frequency, the more bandwidth is available (i.e. the width of the channel used), the faster the data is transmitted. Accordingly, the 5.8 GHz WiFi frequency can carry more data and transmit it at a faster speed. Therefore, if your priority is to provide an excellent WiFi performance as for speed, go for 5.8 GHz.
For instance, hotels targeting business travellers need to provide guests with a fast Wi-Fi connection, which allows them to stream movies online, upload and download files, etc. In this case, a significant amount of network traffic is generated, and bandwidth availability is necessary to handle it.
The 5.8 GHz band has 23 channels compared to 2.4 GHz, which provides 11 channels (keep in mind that channel availability depends on the country in which the deployment is located). Also, 5.8 GHz is characterised by more spectrum availability, as fewer devices use it compared to the overcrowded 2.4 GHz band. Indeed, the majority of wireless technologies operate at 2.4 GHz, i.e. cordless phones, garage door openers, microwaves, Bluetooth devices, etc. These two differences are the reason why WiFi networks using 5.8 GHz WiFi frequency experience fewer interferences from other devices compared to WiFi connections using 2.4 GHz.
Accordingly, if your WiFi network is located where many interferences from other devices slow down your connection, we suggest opting for 5.8 GHz WiFi frequency.
Hope this explanation helps!