The next iPhone (the iPhone 7S, iPhone 8?), which is due to be released in September, might replace the TouchID fingerprint sensor with whole-face 3D scanning.
According to Bloomberg, which is usually quite reliable when it comes to Apple rumours, the face-scanning tech will allow iPhone users to log in, authenticate payments, and unlock secure apps. This will be powered by a new 3D sensor. Apple is also testing eye scanning tech, which would provide additional security and redundancy alongside the face scanner. The tech might be ready for the next iPhone, or it might not be, according to people familiar with the product.
The same people said the new 3D face-scanning chip is incredibly fast and accurate: it can scan and authenticate the user's face within "a few hundred milliseconds." It apparently doesn't require a close-up of your face, either, which is good news: holding an iPhone up to your face is hardly more ergonomic or convenient than a fingerprint scanner.