In order to add wireless charging function to smart phones, manufacturers have chosen the glass back cover solution, although this will make the damage caused by accidental drop more serious. But on the new iPhone 12, Apple has managed to find ways to make the device more durable, such as using Corning’s ceramic shield glass. < / P > < p > in introducing the 6.1-inch iPhone 12, apple claimed that the ceramic shield was tough. Corning is said to have successfully grown nano ceramic crystals in the glass matrix by introducing a new high-temperature crystallization step. < / P > < p > in addition, the iPhone 12 uses the same flat fillet aviation aluminum middle frame as the new iPad pro, and the drop resistance of the new device is four times that of ordinary glass. < / P > < p > although apple did not specify how the company accurately measures the durability of the ceramic shield, the comparison between the front cover and the previous generation suggests that the control group is the iPhone 11 series released in 2019. < / P > < p > for ordinary consumers, it is still glass in essence, so the damage caused by accidental fading cannot be avoided. If you are a hand skater, you should wear a protective case or buy AppleCare + service to prevent damage. Spontaneous combustion at a Guangzhou Motor vehicle intersection and other traffic lights in Shenzhen