what does wi-fi and cellular on a ipad mean
About cellular data settings and usage on your iPhone and iPad. Cellular data on your iPhone and iPad (Wi-Fi + Cellular model) is used for data communication in cellular networks. It doesn't affect your ability to make or receive phone calls or use Wi-Fi to connect to the Internet.ere's what happens when you turn off cellular data: 1  You won't see the cellular data icons in the status bar (for example, LTE or 3G). 2  You won't be able to send or receive MMS messages. 3  You can still send and receive SMS and iMessages (text or multimedia) when connected to a Wi-Fi network.