A study undertaken by FixYa found that an iPhone is 300% more reliable than a Samsung device. Before anyone starts to discredit the findings, it is important to note that they looked at 722,558 problem reports mixed with data from Statcounter. The data is solid and paints an interesting picture.
Where are our Finish friends from Nokia you ask? They were third in line. The least reliable were found to be Motorola devices, which is interesting considering all of the rumors of an unbreakable phone (called the X-phone).
The most common complaint for iPhone users was battery life. The most common Samsung complaints were related to the microphone and speaker.