When I had an HTC one X the gyros stopped working. I took it in to vodafone, they sent it away for repair and I was sent a new one x. Unfortunately the wifi didn't work on the replacement they sent so I took it back in, phone was sent away and another replacement sent back. This time it was stuck on an older version of android and couldn't be updated. I took it back to the shop and ordered an iPhone 5s. This all took 3 weeks. After 6months the touch sensor on the 5s stopped working and the Touch ID settings disappeared from the settings menu. I tried all the fixes suggested on the forums and apples website. Nothing worked so I took it into an apple store. 10 minutes later I walked out with a new phone. That's why I moved back to apple.