The iPhone 15 has a notch at the top of the display for the front-facing camera and Face ID sensors, while the Pixel 8 has a uniform display with a hole-punch cutout for the front-facing camera.

The iPhone 15 uses Apple's A16 Bionic chip, while the Pixel 8 uses Google's Tensor G3 chip. Both chips are expected to be among the most powerful smartphone processors available in 2023.

The iPhone 15 has a 48MP main rear camera, while the Pixel 8 has a 50MP main rear camera. Both cameras are expected to be excellent, but the Pixel 8 may have a slight edge in terms of image quality.

The iPhone 15 has a 3,349mAh battery, while the Pixel 8 has a 4,575mAh battery. This means that the Pixel 8 is likely to have better battery life than the iPhone 15.

The iPhone 15 runs iOS 17, while the Pixel 8 runs Android 14. Both operating systems are expected to offer new features and improvements over their predecessors.

The iPhone 15 is expected to be more expensive than the Pixel 8.

The iPhone 15 has a more powerful processor, a better display, and a more versatile camera system.  

If you are looking for the most powerful and feature-rich smartphone available, the iPhone 15 is the better choice.