Apple ipad air 2 128gb overview type ipad air operating system ios 9 specification processor a8x processor with m8 motion coprocessor screen screen size 97 screen type retina display resolution 2048 x 1536 pixels per inch 264 ppi touchscreen multi point touchscreen connectivty wireless 80211 abgnac dual band bluetooth bluetooth 40 audio interface 35 mm jack other ports lightning connector media mem