They both have advantages based on what environment they are used in.

UHF has a shorter wavelength and its signal penetrates through walls far better than VHF. UHF also “bounces” around better in a city environment and within buildings. UHF penetrates through walls far better than VHF.

VHF has a long wavelength. This is great if you are mainly using your radios outdoors. VHF will give you more distance than UHF outdoors.

UHF radios cannot talk with VHF radios, so if you currently own radios and want to keep using them with new radios, then you must buy the same frequency that you currently own.

VHF stands for Very High Frequency, UHF stands for Ultra High Frequency.

VHF Two Way Radios are typically 150-174 MHz