iOS 11.2 Supports Faster 7.5W Charging on iPhone 8, 8 Plus and X From Qi-Based Wireless Charging Accessories

"The 3D sensor system will be different to the one found in the iPhone X's front-facing camera, and is said to be the next big step in turning the smartphone into a leading augmented reality device."  https://goo.gl/WnKKzj