"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
Apple Highlights Depth Control Feature on iPhone XS, XS Max and XR With New How To Video
Depth Control, a feature new to the 2018 iPhones, lets you adjust the amount of background blur in a photo taken with Portrait Mode using either the front or rear camera.
Depth Control can be accessed by choosing a Portrait Mode photo from the Photos app, selecting the "Edit" button, and using the slider at the bottom of the screen to adjust the blur from f/1.4 (maximum blur) to f/16 (no blur).
Depth Control is available when editing an already-captured photo and as of iOS 12.1, there's a real-time Depth Control feature for adjusting blur before you take a photo.
Apple has in the past shared multiple short how to videos like this to highlight photography capabilities on the iPhone along with iPhone X features.
We're likely going to see several more videos focused on the iPhone XS, XS Max, and XR in the coming weeks as Apple helps users adjust to the new features available on the devices.