One of the features of the iPhone 13 and iPhone 13 Pro was a reduced notch in the display. To do this, Apple engineers slightly redesigned the system of projectors and cameras, which are used in the Face ID operation. Some changes were also made to the software. However, all of these innovations have created a number of problems for people who have to use CPAP machines.
CPAP therapy is used to treat obstructive sleep apnea, respiratory failure, and a number of other respiratory and cardiovascular conditions. From time to time, patients are forced to wear special masks that cover most of their faces. In particularly complicated cases, people practically never take them off.
iPhone 13 problems with Face ID
In the past, iPhones with Face ID had no problem recognizing the faces of their owners with CPAP masks. Now, however, the situation has changed. One user, who has to wear a CPAP mask almost constantly, noted that he has never been able to set up Face ID on the iPhone 13 Pro. The smartphone simply refuses to do so, recommending the user to remove all elements that cover the face. Alas, there's no way to do that.
It is difficult to say for what reason such problems arise. It's quite possible that in the future Apple will somehow fix the situation. But so far representatives of the company don't comment on user complaints.