https://wccftech.com/oneplus-ceo-explains-headphone-jack-removal/

OnePlus’ decision to remove the headphone jack from its upcoming OnePlus 6T flagship has elicited a polarized response from consumers. Initially, the company had said that a survey it had conducted revealed that most OnePlus customers own a pair of wireless headphones anyway, so it isn’t much of a big deal to ditch the headphone jack. However, it is a bizarre thing to say after being such a strong advocate for this port and criticizing other manufacturers for going forth and removing the 3.5mm audio jack in the first place.

In the wake of heavy criticism, the company’s co-founder and Chief Executive Officer Pete Lau has now highlighted other reasons behind this decision. First of all, the removal of the 3.5mm connector will free up some real estate for the in-display fingerprint reader.