Wifi means it is wireless, but you have to have internet for it to be wireless on. So, no, you would still need to have some type of internet to use the built in wifi on the Ruku. Think of it this way, instead of using a cable (a wire) to hook Roku up to the internet (thru router), it is wifi (wireless) to hook up magically through mid air...no wires, i.e. wireless.