Smartphone and electronics warranty provider SquareTrade recently shared its smartphone data in a report comparing the iPhone 4 with other mobile devices. In the study ,there were four months of data on the iPhone 4, eight months of data on Motorola and HTC Android devices, and one year of RIM BlackBerry data. The iPhone 4 led the group in reliability, with only 2.1 percent projected to have a non-accident malfunction in the first year of ownership.

SquareTrade estimates that the iPhone 4's malfunction rate over a 12-month span was just 2.1%, the iPhone 4 is currently outperforming almost every other smartphone in terms of user satisfaction. So, despite all of the bad press the iPhone 4 has been getting, it looks like Apple fans and will always be Apple fans to play with iphone, and they can still enjoy dvd or video on iphone 4 easily through a  dvd to iphone 4 converter , as long as with this powerful tool, we can play it at any time and any place. If we are using a mac systerm , we can also to convert dvd to iphone 4 with dvd to iphone 4 mac , all in all, we can get the most from them.

Android device makers Motorola and HTC were not far behind, with 2.3% and 3.7% malfunction rates in the first year respectively. Other smartphone makers were less reliable, with some 6.3% of Blackberry devices failing in the first 12 months, along with a 6.7% failure rate for other smartphones, the SquareTrade report said. The study also found that over 75% of smartphones experience a failure due to accidental damage. Blackberry devices had the lowest first-year accident rate, at 6.7%, while the iPhone 4 had the highest, at 9.4%. Its predecessor, the iPhone 3GS had the lowest overall failure rate, at 11.7% over the course of a year, with the highest failure rate at 16.9%, the study found.

While the November 2010 study found that the iPhone is the most trustworthy phone, it also showed Android-based Motorola and HTC devices to be pretty comparable in terms of dependability. The study said that the reported rates can only reflect across-the-board improvements in hardware that hasn't been proved in the long run. American gadget insurer SquareTrade released figures yesterday showing that of all the smartphones on the market, the iphone 4 was the most likely to get broken accidentally, with a staggering 13.8% accidental damage rate compared with only 6.7% for Blackberry phones.

These figures need some time to test, there maybe the tendency that the iphone 4 is easier to drop or that it's more likely to break if you do drop it - which makes sense when you consider its glass construction - or combination of the two. On the positive side for Apple, the iPhone4 is reported as the least likely to breakdown with a 12 month failure rate of 2.1% compared with 6.3% for BlackberryThe data from SquareTrade also suggested that despite being among the most complex devices available, smartphones are less likely to break down than any other type of gadget except for digital cameras.

Above all, we can draw a rough conclusion that the iPhone 4 is the most reliable phone in the study, but also has the highest risk of accidental damage. Blackberrys had the least risk of accidental damage, and may be the best choice for the clumsiest consumers, but had a relatively high malfunction rate.