The upcoming iPhone X will use Face ID, technology that unlocks your iPhone X by using infrared and visible light scans to uniquely identify your face. The company says it will work in a variety of conditions and is extremely secure. Though no one outside Apple has yet been able to confirm how well it works.
Editor's note: This article was updated on Nov. 28, 2017, with a report that a security firm/smartphone manufacturer has fooled Face ID with a mask.
This brings up a lot of questions about Face ID. We'll work to get answers to you as you ponder whether you want to buy an iPhone X when it starts shipping November 3.
