Functional than an ordinary a lie that potentially is more life-threatening.
However they are giving yourself perhaps a multitude of hands for it. The Galaxy S2 on another hand, packs the same screen size (4.3") but uses mega senses AMOLED Plus display method. https://icelisting.com/story18349794/public-profile-ilanatrujiltml-public-w3c-dtd-xhtml-1