Touch ID under the OLED screen, now that's where the real magic lies. Face ID, as great as Apple is making it out to be, still requires contact between your finger and the screen to unlock the device, it's a two step process. Touch ID is a one step process. Peope will say the first step in the process is almost instananeous, but it's still a two step process and I will talk about the instaneous part and how much of a problem that can/will/may be in a bit
According to Apple, the odds of a security breach with touch ID is 1/50,000. With Face ID it's 1/1,000,000. Thus according to Apple, Face ID is 20 times more secure. Now I would not doubt those odds, nor would I doubt the credibility of Face ID, if we all lived in a perfrct world. But therein lies the problem. Who here lives in a perfect world? Certainly not me. I live amongst criminals, pranksters and nosey people. Has Apple considered if Face ID will actually encourage certain types of people to grab your phone and before you realise it, shove it in your face? I don't think it has. The X won't recognise the snatcher's face, but it also won't recognise the snatcher's finger either. If someone wants to grab my phone and also try to grab my finger to touch the home button, good luck to him, but it will actually be 20 times easier with face ID to do. And if I decide not to have all my fingers registered for touch ID, even harder. We may very well see a craze/fad/trend develop where just for laughs, or for the sake of it, people, criminals or groups of pranksters go around looking for iphones without a home button to snatch and put the $1,000 (and more) device to the face of the owner. Imagine that happening to you just once, let alone twice or several times. You certainly wouldn't want to leave your X on the table at a restaurant if you're dining outside. I can honestly see it now, snatchgate or facegate, to go along with notchgate. But if snatchgate happens, I'm tipping notchgate will be the least of all X users' problems.
If you have seen the movie Rocky 4, you will know how cocky Drako's camp was after he killed Apollo. That's how I liken Tim Cook and his clowns at the moment. They appear very cocky about Face ID. But you will also remember the look Drako's wife gave when Rocky cut Drako and the commentator said "he's cut, he's cut". That's the look Tim Cook will give when snatchgate/facegate becomes prevalent. Again, I'm wondering if Apple gave any consideration at all to snatchers? Some said above that the risk of a snatch is a small price to pay for issues like being able to open your device with wet fingers or gloves. To those who said that, you might change your mind soon enough if people are attempting to snatch your phone at least once a week.
At the end of the day, touch ID was not broken. It was actually excellent. Yet Apple will phase it out because they could not get the real magic to work. It has lost its innovative touch (pardon the pun).
What happens to that one step process when there is no button to press?