https://motherboard.vice.com/en_us/article/xwggqz/iphone-8-teardown-if-it-cracks-good-luck-replacing-that-new-glass-back

iFixit finished its live teardown of the iPhone 8 just in time to let you know more about the device's repairability before the new phone goes on sale today. The teardown suggests Apple's better have kept its promise that the new, all-glass back is extremely durable: Replacing it if it cracks won't be easy.

The iPhone 8 got a repairability score of a 6/10, which is one point less than the 7/10 the iPhone 7 got last year. The lower score is attributed mainly to that back glass, which iFixit was unable to remove without denting the back case of the phone. The team flew to Australia, where the phone is released first because of time zone differences, to tear it down ahead of its US release.