Best answer by DRSC Media
The marketing material does not lie either, it clearly states, in big,
"When you need a quick measurement tool for simple DIY projects, just open the AR Measure App. You can accurately measure length, total area and volume with the HUAWEI TOF Camera. By utilizing the Face Recognition technology, you can now measure the height of a person with just a simple task of scanning from toe-to-head."
edit: Mate 20 Pro comes with 3D modeling thanks to the many sensors on it's front camera/notch. Search for "3D Live Maker" on Huawei AppGallery