https://www.cnet.com/news/oneplus-6t-in-screen-fingerprint-sensor-confirm-on-display-exclusive/

The upcoming OnePlus 6T will feature an in-display fingerprint reader, the company confirmed to CNET. This will make it not only the first OnePlus phone with the technology, but also the first phone to have it that is widely available in the US too.

Currently, the feature is available on a few Vivo phones (the Vivo V11, X20 Plus UD, X21 and Nex) and the Porsche Design Huawei Mate RS. OnePlus brands its fingerprint-on-display (or FOD) feature as Screen Unlock, and it streamlines the phone's design and saves users the extra step of picking up their phones to unlock their screens.