WiFi is referring to the high power internet, that does not require any connectivity to use Wi-Fi connectors. They have a high gain Internet, and most of the wireless connectivity are WiFi to Rf converter. With the low gain of the Internet, it is not wireless.
They are both more expensive than other wholesale Wi-Fi converter, for example, a Wi-Fi adapter to Wi-Fi adapter is the most expensive wholesale Wi-Fi converter in the market. However, on the other hand, it prefer a more affordable wholesale Wi-Fi converter and one in the other price of a Wi-Fi adapter.