How iPhone X and Face ID Works with Twins [VIDEOS]


This morning the embargo was released on iPhone X reviews, with most reviewers only getting 24 hours with the device, but sharing mostly positive reviews of the latest iPhone.

Screenshot 2017 10 31 09 07 19

One of the biggest features of iPhone X is Face ID, as the facial recognition technology replaces Touch ID and the Home button. Apple previously shared in their Face ID support document the feature has 1 in 1,000,000 odds of a random person unlocking your iPhone X, whereas Touch ID has 1 in 50,000 odds. But the stats change when twins are involved (for obvious reasons):

The statistical probability is different for twins and siblings that look like you and among children under the age of 13, because their distinct facial features may not have fully developed. If you’re concerned about this, we recommend using a passcode to authenticate.

With this in mind, here are a couple videos testing Face ID on iPhone X with twins. The first video by business insider saw Face ID get bypassed by one set of twins but not another. The second video by Mashable shows Face ID resisted unlocking in their twins test.

Check them both out below:

Meanwhile, Joanna Stern at the WSJ also put Face ID to the test with twins and triplets (these kids bypassed Face ID as expected):

iPhone X launches this Friday, November 3, with pre-orders set to be delivered and some stock available in Apple Stores.


  • Anonymous

    This is great news. Apple won’t have released a half baked feature especially when the whole security n privacy depends on it.

  • Joe

    You watched the video, right? The evil twin was able to bypass the good twin’s Face ID.

  • Yes, just like Apple said that could happen and they have in a disclaimer on the phone. Did you see the other video where the twin wasn’t able to access the phone? That’s the one that’s impressive, it shows that the security is good enough that even some sets of identical twins can’t fool it. It makes sense that there are sets of twins out there that can fool it. What’s impressive is that there are also sets of twins that can’t.

  • Jimmy

    Because of this, I can’t see any corporation allowing it to be use as byod or Corp phone.

  • Aleks Oniszczak

    Not all twins are identical twins. I can see using “twins” as shorthand in some situations, but if you don’t use the term correctly when its an article specifically about identical twins, then when would you use it? I’m curious how FaceID works with fraternal twins. It’s a question people won’t even think to ask if articles just say “twins”.