November 20, 2006 Sony Ericsson ranks highest in satisfying customers who have owned their current mobile phone for less than two years, according to a J.D. Power and Associates 2006 U.S. Wireless Mobile Phone Evaluation Study released this week. The study measures customers' satisfaction with their wireless handsets based on five key performance factors. In order of importance, these are: physical design (24%); operation (22%); features (20%); handset durability (19%); and battery function (15%). Sony Ericsson received the highest ratings from customers in handset durability, and also performs particularly well in features and battery functionality. LG and Sanyo took out second and third place in the overall rankings, with global market leader Nokia, Samsung and Kyocera performing below the industry average.