It appears the Pixel 4 XL will have a larger top bezel to house dual front-facing cameras, other sensors (perhaps for hand gestures) and an earpiece speaker for calls, instead of going down the increasingly common notch route. There's no physical fingerprint reader in the renders either, so the Pixel 4 might well have an in-display fingerprint sensor or even forego such scans altogether in favor of a Face ID-style unlocking system.
OnLeaks claims the Pixel 4 XL will measure 160.4 x 75.2 x 8.2mm, with the thickness increasing to 9.3 mm to accommodate the camera bump. Despite his solid reliability, it's still worth treating the renders with a touch of skepticism until Google formally reveals the Pixel 4 lineup.
PriceBaba and OnLeaks' previous attempt at a Pixel 4 render was almost right on the money, as Google released official teaser images for the rear of the device soon after which looked very similar to those renders and showcased a camera array module. It seems unlikely Google will follow suit here, as it surely wants to keep the big reveal for its sure-to-be-splashy Pixel 4 event, which'll most likely take place in the fall.