Eli5:Is WiFi an actual physical thing? If no, then how do companies charge money for it? If yes, what is it?

Question

Eli5:Is WiFi an actual physical thing? If no, then how do companies charge money for it? If yes, what is it?

In: Other

Answer 1

So very much wrong or irrelevant in the answers in this thread.

WiFi is a standard for computers (including your phones) to communicate with each other using radio (_not_ light). You need hardware that implements that standard in order to actually create connections between devices.

The hardware you need is what people charge for.