There are suggestions that the iPhone 8 could use facial recognition to tell when owners are looking at it, so that notification sounds can be muted with a glance. 

SmartCam

More leaks in Apple’s code, discovered at the end of July, have indicated there will be an update to the iPhone’s camera with augmented reality tech. The “SmartCam” was revealed in firmware for the HomePod smart speaker, which revealed it could identify different scenes and objects, such as fireworks, foliage, babies, pets, snow or sport.