Teclast X98 Air II Z3736F Quad Core 9.7 Inch Windows 8.1 + Android Tablet - $212.99 Teclast X98 Air 3G Quad Core 9.7 Inch Windows 8.1 + Android Tablet - $237.99 The Teclast Air 3G has many variants. Shipping out as either solely Android model or dual boot Windows 8.1+Android. Teclast X98 Air II is exactly the same just without 3G and GPS. The X98 Air has a Retina Ipad Air screen and Intel Atom quad core Z3536F that boost up to 2.16 Ghz turbo. 2GB of ram on board at 1333Mhz which is a standard. A 32GB eMMC drive capable of 120mbs to 170mbs. It depends on which model you get, Teclast is currently using BIWIN, Toshiba and Hynix eMMC 4.5 flash drives in the unit, which one you get is down to luck.