I have a feeling they screwed up the iPhone 6s display, similar to the 27" iMac screens a few years ago when there were dark shadow bands across the display. My new 6s display is darker across the top section of the screen and I've already seen someone else make the same comment....could this be a huge deal or is mine just a isolated defect? I know people are saying the screen is not as bright as the 6, but that's probably due to the 3D touch technology. Regardless, the brightness should be uniform across the screen. Mine is not bad enough to get a replacement but my 6s display is definitely not up to iPhone standards. Mine is a silver 128gb version.