This may have been covered before but in wake of the recent threads regarding yellow screens and other defects, it got me thinking about the build quality/reliability of the iPhones I've owned over the years. I think it'll be interesting to see other peoples thoughts both negative and positive. Now I'll qualify myself by admitting I have severe OCD when it comes to my gadgets (to the point it often spoils the enjoyment of them) and I generally spot inperfections quickly and pick up on things most people wouldn't. At the same time I've also been brought up with the belief that when you're spending good money on something, that, as well as looking after them, you expect them to be well made and to last an acceptable amount of time. I've owned several generations of iPhone and with the exception of my 3GS upgraded on a two yearly basis. And whilst they've all been great phones I can't think of one that hasn't had a fault either from new or that has developed during (well looked after) use. I understand that these are mass-produced pieces of metal, plastic and glass, but I can't believe that out of all the millions made I've ended up with issues on all. iPhone Model - Faults from new? - Faults after usage? iPhone 3GS - Dead pixel and screen not quite level with bezel - Owned for 12 months (still working when sold) iPhone 4 - (Aside from Antenna-Gate) No apparent faults from new - Owned for 24 months, Home button didn't always respond, battery showing signs of age but still acceptable (probably the most reliable iPhone I've owned) iPhone 5 - Fault with camera producing purple bars on the screen and crashing (should have had this replaced but naively stuck with it) - Owned for 48+ months (2 years by me and 2 by my OH and now standing in again whilst I await my replacement 7), screen developed a pink hue in the centre after 18 months use, will randomly switch off with 20-30% battery left. iPhone 6 - Faint horizontal dark smudge on screen noticeable against bright backgrounds - Owned for 24 months, screen developed a dark patch in top left corner after 12-18 months use, sometimes shows image retention of the carrier logo after periods of long use, battery still gives good life. iPhone 7 - Uneven backlight giving spotlight effect down right hand side of screen, faint lines on screen - Exchaned after 7 days, will report back one new one arrives.