https://qz.com/1121324/apples-faceid-technology-doesnt-work-quite-as-smoothly-on-the-iphone-x-as-apple-suggests/

On Friday, I stood next to a construction site for an hour to purchase a $1,149 new smartphone from Apple.

Over the weekend, I used my iPhone X so much that I managed to drain its battery both days before the evening, as I spent so much time showing off its new features and testing them myself. To do that, I needed to unlock my phone each time. That meant using one of Apple’s latest features.