As you may know, Apple's marketing boss Phil Schiller recently insisted that rumors of the iPhone 7's Home button and camera lens not being covered in pure sapphire were false. However, YouTuber JerryRigEverything has found that these parts do leave scratch marks at a level six on the Mohs scale of hardness, which is odd given that pure sapphire crystal should sustain scratches up to a level nine.
Apple on its website states that all of the iPhones it currently sells offer sapphire protection for the Touch ID sensor and iSight camera, which doesn't explain why these parts appear to scratch more easily than they should.
Could Apple be using a sapphire/glass hybrid or even a normal tempered glass rather than a 100 percent sapphire crystal? That's what JerryRigEverything set out to find in a comprehensive scratch test video of the iPhone SE/6/6s/7 series.