‘Pixel Ultra’ Fact Check: Sorry, but none of these ‘leaks’ show a third Google Pixel 3
https://9to5google.com/2018/09/11/pixel-ultra-fact-check-google-pixel-3/

The crazy Pixel 3 XL conspiracy theory explained: What is ‘Pixel Ultra’?
https://bgr.com/2018/09/11/pixel-3-xl-release-date-close-pixel-ultra-conspiracy-theory-explained/