The iPhone SE 4 wins on performance due to the A18 chip versus Tensor G4 in the Pixel 9a. Both share 48MP cameras and $499 pricing with OLED displays, but the SE 4 includes Face ID and USB-C while the Pixel 9a provides a 6.3-inch screen, 5100mAh battery, and IP68 rating. Pixel 9a suits Android users needing battery capacity; SE 4 fits those preferring iOS speed in a smaller body.