From left to right: The iPhone 11 has a 6.1-inch screen, the iPhone 11 Pro Max has a 6.5-inch display, and the iPhone 11 Pro has the smallest display, which measures 5.8 inches.
While the iPhone 11 Pro and Pro Max have three 12-megapixel cameras, the iPhone 11 has only two.
Another look at the iPhone 11 and 11 Pro.
Click or swipe through for more photos of the 11 Pro and 11 Pro Max.
The 11 Pro and Pro Max have 12-megapixel wide-angle, ultrawide-angle and telephoto lenses.
Apple added a new camera mode for low-light and night-time photos.
The iPhone 11 and the iPhone 11 Pro also have more storage. They come in 64GB, 256GB and 512GB capacities.
The iPhone 11, meanwhile, comes in 64GB, 128GB and 256GB models. It also comes in a variety of pastel colors.
Click or swipe through for more photos of the iPhone 11 in green.
As one of the most popular phones in the world, the new iPhones face a challenging market. With iPhone sales falling 12% in the fiscal third quarter, profits expected to dip to $9.6 billion and more people trading in their iPhones for Androids, Apple's new flagship phones need to be compelling enough to draw in new customers or keep current customers interested. For more on the phone, read CNET's iPhone 11 review.