2017-10-31
Länk

Face ID fungerar inte fullt så smidigt som Apple lovat

The Verge:

FaceID should also work through most sunglasses that pass infrared light, although some don’t. And you can definitely make it fail if you put on disguises, but I’d rather have it fail out than let someone else through.

In my early tests, FaceID worked well indoors: sitting at my desk, standing in our video studio, and waiting to get coffee. You have to look at it head-on, though: if it’s sitting on your desk you have to pick up the phone and look at it, which is a little annoying if you’re used to just putting your finger on the TouchID sensor to check a notification.

You also can’t be too casual about it: I had a lot of problems pulling the iPhone X out of my pocket and having it fail to unlock until Apple clarified that FaceID works best at a distance of 25 to 50 centimeters away from your face, or about 10 to 20 inches. That’s closer than I usually hold my phone when I pull it out of my pocket to check something, which means I had to actively think about holding the iPhone X closer to my face than every other phone I’ve ever used. “You’re holding it wrong” is a joke until it isn’t, and you can definitely hold the iPhone X wrong.

That’s a small problem, though, and I think it’ll be easy to get used to. The other problem is actually much more interesting: almost all of the early questions about FaceID centered around how it would work in the dark, but it turns out that was exactly backwards. FaceID works great in the dark, because the IR projector is basically a flashlight, and flashlights are easy to see in the dark. But go outside in bright sunlight, which contains a lot of infrared light, or under crappy florescent lights, which interfere with IR, and FaceID starts to get a little inconsistent.

I took a walk outside our NYC office in bright sunlight, and FaceID definitely had issues recognizing my face consistently while I was moving until I went into shade or brought the phone much closer to my face than usual. I also went to the deli across the street, which has a wide variety of lights inside, including a bunch of overhead florescent strips, and FaceID also got significantly more inconsistent.

I’ve asked Apple about this, and I’ll update this review with their answers along with more detailed test results, but for now I’d say FaceID definitely works well enough to replace TouchID, but not so well that you won’t run into the occasional need to try again.

Rene Ritchie på iMore har även han haft ett dygn på sig att testa iPhone X. Här är hans intryck gällande Face ID:

For unlock and on-device authentication, it’s so fast it’s almost like it doesn’t even exist. Where Touch ID was always unmistakably active — you knew you had to put your finger on the sensor — Face ID seems almost ambient. You look, therefore you’ve unlocked.

It’s not perfect, though. The biggest problem people will have with it is that it requires attention. You really have to look at your phone to unlock it. Not think you’re looking at it. Not kind of look at it. Really eye-of-the-tiger look at it. The problem with attention-aware interface is that you absolutely have to be paying attention.

Also, if you pick up your iPhone to move it around and it sees your face when you’re not looking at it and not intending to unlock it, Face ID can still fire. If that happens five times, it’ll go into secure mode and you’ll need to enter your passcode to re-enable it. if you don’t realize what happened, it can make you think Face ID simply stopped working.

You can disable the attention requirement if you want to prevent that from happening or you want to be able to unlock from a wider range of angles, like when your iPhone X is lying on the table. It’ll increase your convenience but it’ll reduce your security. Make the choice that’s right for you, and change it as often as you want or need to.

Det är såna här testresultat som Apple kanske ville undvika när de lät medier utöver tramsiga “youtubers” testa iPhone X under en alldeles för kort tid.



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