https://finance.yahoo.com/news/huawei-apos-p20-pro-rivals-202700786.html > Oh, and there's an extra 20-megapixel monochrome sensor (with f/1.6 lens) and a color temperature sensor for accurate white balance. If you needed one more lens, don't worry: There's a 24-megapixel front-facing camera too. > Beside all the hardware numbers, Huawei's sales pitch on imaging centers on the AI smarts that come alongside the P20's camera spec sheet, and the standard still photography mode has AI assistance turned on automatically. (You can turn it off in settings.)