http://www.techradar.com/news/oneplus-6-could-get-its-own-version-of-face-id

The OnePlus 6 is likely to improve on the OnePlus 5T in a number of ways, and one of those could be a high-tech facial recognition system similar to Apple's Face ID.

The OnePlus 5T already has facial recognition, but it's nowhere near as secure as Apple's solution and as a result it can't be used to authorize payments. But according to a "reliable tipster" speaking to Android Marvel, the OnePlus 6 will have a more advanced system.