The categories the J.D.Power judges look at are given below:
Operation (30%); physical design (30%); features (20%); and battery function (20%). For smartphones, the key factors are: ease of operation (26%); operating system (24%); physical design (23%); features (19%); and battery function (8%).
According to the results of survey, iPhone performs “particularly well” in ease of use, operating system and physical design. It is expected that Apple will release iPhone 5 in June. It will come with similar design to the iPhone 4, multi-processor A5, and bigger edge to edge screen.