For the second time in a row, the popular Apple iPhone has won the JD Power award for customer satisfaction.

In the Volume 1 of the 2009 Wireless Consumer Smartphone Customer Satisfaction Study, conducted by JD Power and Associates, Apple managed 791 points out of
1,000; while closest rival LG received 772 points, Samsung got 759, and Research In Motion scored 739 points. With the overall smartphone satisfaction increasing since last year's JD Power study; the industry average this year was 751 points.

The study was conducted between the July and December 2008 period, with the company surveying 2,648 smartphone users who have been using it for less than two years.

For the study, five parameters were used to gauge the level of customer satisfaction with regard to smartphones. These parameters in the order of importance for smartphone users were: ease of operation - 30 percent; operating system - 22 percent; features - 21 percent; physical design - 18 percent; and battery function - 9 percent.

Though Apple iPhone scored pretty high on most of the parameters, the one constraint that it faced was battery life, which is indeed a problem as per the iPhone owners.