Drop-tests are always fun to watch, but I’ve always felt that the reliability of most of them is suspect simply because there are so many variables.Most involve someone dropping a phone by hand, and the distance is often as imprecisely measured as ‘waist height’ or ‘head height,’ making it hard to be sure both phones experienced exactly the same force. Dropping a phone from a hand can result in differences in initial angles, and releasing one side of the phone a fraction of a second before the other can impart a rotation to the device. In short, most drop-tests are more entertainment than science. But the...