At the  end of September, OnePlus introduced an improved version of the flagship OnePlus 7 OnePlus 7T . Zack Nielson, author of the YouTube channel JerryRigEverything, has already tested it for durability through his traditional tests.    

What  happened to him

So, the first two tests are nothing new, we have not  given: display, as  in  any modern smartphone, sharp objects with  a hardness of  6 on  the Mohs scale, and  the pixels fade over an open fire, but  quickly recovered.
But  the back panel was pleased: like  the  iPhone 11 Pro Max , it is matte, but a  trifle, keys and  other items that can lie with your  smartphone in  your pocket or bag, does not  leave  marks on the surface.
However  , the  OnePlus 7T has problems with durability : as soon as Zack tried to bend it,  a big crack appeared on the back panel. With  new attempts, it only grew, although the smartphone itself still worked.
Perhaps the matter is in the  design of the main camera: she received three sensors, which are located in the  circular module in the middle. In  any case,  you need to be careful with your smartphone.

Source: JerryRigEverything