Sony has made quite a few announcements at the MWC in Barcelona, including that of Xperia Z4 Tablet. It is supposedly the lightest and slimmest 10 inch tablet that is there in the market. The tablet shall be launched to a lot of stiff competition from the sleek Samsung Tab S 10.1 and the Nexus 9 designed by HTC along with the iPad Air 2 from Apple. How does the Sony Z4 Tablet compare with the Cupertino made tablet?