The new OnePlus 6T in-display finger scanner works even under a heavily scratched Gorilla Glass 66
Just like its spiritual parent the Oppo R17 Pro, the OnePlus 6T sports a 6.4" display with waterdrop notch and Gorilla Glass 6 protection. It upgrades the chipset to Snapdragon 845 from 710 in the R17 Pro, but downgrades the camera kit for that matter. Both devices sport one and the same in-display fingerprint reader, though, which OnePlus claims to be the fastest such scanner currently on the market.
That's not saying much as those are usually slower than regular fingerprint readers, but there is still one important advantage for the in-display finger-reading tech that OnePlus is using in the 6T - it can work even if you scratch the cover glass right on top of it, as you can see at two minutes in the video here.