A square display put more information. This is important when viewing images and drawings, as well as when working with text . In one line on the screen are placed 60 characters, whereas the ideal amount, according to scientists, reaches 66 characters. Rectangular smartphones competitors, according to BlackBerry, placed only 40 characters per line. The device makes it more convenient than just reading books and documents, but also text input - virtual keyboard in this case does not cover half of the screen.
Secondly, there is no need to change the landscape orientation to portrait, and it saves time when using the device.