content: Nothing compared to how many issues Apple has had with the iPhone line.    They had problems with pretty much every generation, inlcuding: iPhone 3 Iphone 4 iPhone 5 And it's still a problem with the iPhone 6. They literally haven't released a phone in over 5 years that hasn't caught on fire.  Now, some of these are going to boil down to user error, but not all of them.  Turns out non-removable batteries are a dumb idea.