The promo image also confirms the new Pixel 4 phones will feature small bezels on the three sides and big forehead, which could house a Face ID system, similar to iPhone. It displays the all-new Soli hands-free gestures, agrees to some new Google Photos full voice control features too (via ProAndroid).
We still don't know how much the Pixel 4 will cost or when it will go on sale, but Google traditionally has launched its Pixels in October.
The Google Pixel 4 and Pixel 4 XL are expected to arrive in October.
If you're looking for a more thorough look at the Pixel 4, a separate leak we wrote about this morning features some of the clearest photos of the phone we're likely to see until actual marketing images leak (which they nearly certainly will, since everything leaks now). The render also shows the device will have a large bezel at the top. This is based on an alleged Pixel 4 promotional image showing the date on the phone's homescreen. Last year, Google unveiled the Pixel 3 smartphones on October 9. Lastly, the video shows the Pixel 4 with white colour option, while the edges are painted black.
The tweet suggests that the new Pixel devices will be powered by the Snapdragon 855 mobile platform, rather than the recently launched Snapdragon 855 Plus chipset. Other rumored specs include a 6.23-inch QHD+ display with a resolution of 3040 x 1440 and a 90Hz refresh rate, Snapdragon 855 chipset, and 6GB of RAM along with 64GB of storage.
Continuing with software, the Pixel 4 reportedly features an "Ambient EQ" toggle.