The primary difference between the 2.4 GHz and 5GHz wireless frequencies is range as the 2.4GHz frequency is able to reach farther than the 5GHz frequency. This is a result of the basic characteristics that waves attenuate much faster at higher frequencies. So if you are more concerned with the coverage, you should select 2.4GHz rather than 5GHz.
The second difference is the number of devices on the frequencies. 2.4GHz suffers more interference than 5GHz. A lot of other devices are also on the 2.4 GHz frequencies, the biggest offenders are microwaves and cordless phones. These devices add noise to the medium that can further decrease the speed of wireless networks.
Higher frequencies allow faster transmission of data, also known as bandwidth. Higher bandwidth means that files will download and upload faster, and high-bandwidth applications such as streaming video will perform much smoother and faster. Therefore, the 5GHz with its higher bandwidth will provide much faster data connections than 2.4 GHz.
For a better experience, choosing to deploy on the 5GHz frequency is the much better option as you have more channels to use to isolate yourself from other networks and there are far fewer interference sources.