DAB (Digital Audio Broadcasting) radio uses digital signals that are broadcast over the airwaves. This means you don’t need an internet connection to listen to it, just a DAB-compatible radio.
Internet radio streams audio through an online connection, offering a wider range of stations. But this means you need Wi-Fi or mobile data for it to work.
The best one for you depends on your circumstances. For example, DAB is more reliable in areas with weak internet coverage, while internet radio provides more global station options.