WiFi is an important function for any tablet, indeed it is essential that it has it as, unlike such as Bluetooth, it is the primary communication method for the internet. Naturally, the LeapFrog Epic does come with WiFi.
WiFi is needed for a number of functions, such as setting up the tablet, browsing the internet and downloading content. It is also required for peer-to-peer gaming over local WiFi, which allows users that are close to each other to play against each other. Once content has been downloaded, WiFi isn’t needed for most, although some will require some internet access for certain tasks, such as any games that are played over the internet.