At the tap of a button, the hidden "Halo Keyboard" lights up, giving you a touch keyboard. The Yoga Book has the guts of a tablet and is relatively weak in terms of performance, but it definitely has ...

Sony Xperia ZR mobile was launched in May 2013. The phone comes with a 4.60-inch touchscreen display offering a resolution of 720x1280 pixels at a pixel density of 323 pixels per inch (ppi). Sony ...