The standard iPad with only Wi-Fi connectivity, which requires a hotspot. The iPad Wi-Fi + 3G and Wi-Fi + 4G also includes cellular capability. See iPad and hotspot.
"iPad Wi-Fi." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/ipad-wi-fi>.
iPad Wi-Fi. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/ipad-wi-fi