The Pixel 4 was the first and only Google phone to integrate "Project Soli," a tiny Google radar chip that can detect motion.

It was on sale for only nine and a half months before being discontinued, making it the shortest-lived Pixel ever and creating two months of dead space between the Pixel 4 discontinuation and the Pixel 5 launch.

Before the Pixel 4 launch, Google Hardware SVP Rick Osterloh reportedly held an all-hands meeting and told his employees that he "did not agree with some of the decisions made about the phone" and that "in particular, he was disappointed in its battery power." That meeting, described as "rare internal criticism" from Osterloh, led to two top Pixel executives—general manager Mario Queiroz and camera lead Marc Levoy—quitting the team.

The iPhone gets support for around six years, while Samsung supports its phones for four years of major Android updates and one extra year of security updates.

Even Google's current Pixel 6 plan is worse than Samsung's; it offers only three years of major OS updates and an additional two years of security updates.