Frequency band are based on usage and regulations. Regulations are not the same across the world. Plus, depending what your device application will be, you will need to use a certain frequency band. For example, some antenna can work in multi-band which might be too wide set of frequency if you have a single band one, then it makes your antenna less performant.
Antenna are not interchangeable, so we advice to check which band to use and that it fits your antenna at the beginning of your project.