The difference between 2.4 GHz and 5 GHz Wi-Fi frequencies revolves around bandwidth and range. The 2.4 GHz band offers a longer range but lower speeds and is more susceptible to interference from devices like microwaves and Bluetooth. It has a wider coverage area but slower data rates, making it suitable for basic tasks like browsing. In contrast, 5 GHz provides faster speeds and more channels with less interference, ideal for high-bandwidth activities such as gaming and streaming. However, it has a shorter range, making it less effective for larger homes where coverage is needed.