The vivo X5 sapphire version should be the first mobile phone in China to apply artificial sapphire to such a large screen. Of course, we haven't got this mobile phone yet, but the sapphire panel of this mobile phone has been obtained first. Sapphire is a very hard material, with a Mohs hardness of 9, which is only a little less than a diamond with a hardness of 10. And is the sapphire screen really so scratch resistant? Let's have a look.
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