Question: what is the difference between ipad air and ipad wi-fi?
Answer: The cellular capable models from all three lines also support A-GPS, whereas the Wi-Fi only models do not. However, the original iPad Air models only support dual stream 2.4 GHz and 5 GHz 802.11n Wi-Fi (MIMO) whereas the iPad Air 2 and iPad (5th Gen) support faster 802.11ac (HT80 with MIMO).