The Mohl hardness test is often used on smartphone displays to gauge their resistance to scratches and abrasions. Certain materials with a known hardness score are rubbed against the screen to see if it leaves a mark. Using this test, the iPhone 12 scored a 6 with slight scratching seen after the glass was rubbed with a material that scores a 7 on the hardness test. At a hardness level of 8, scratches were more visible. For comparison purposes, the iPhone 11 started to show signs of scratching at level 6.
Your best bet, as always, is to purchase a case for your new iPhone 12 series handset even though the Ceramic Shield does make the screen tougher. Many cases contain a raised lip around the display that will help protect the glass during certain drops. While most phone owners fear a cracked screen whenever their phones are dropped, there also could be internal damage that you won’t see after phone meets pavement. And don’t hang your hats on the result of any drop test. Different variables can always produce different results so you should assume that your phone is fragile and needs to be protected.
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