In terms of appearance, the iPhone 12 uses a 6.1-inch size, and the iPhone X is 5.8 inches, so the two phones are put together, the iPhone X is slightly smaller, and the iPhone 12 is slightly longer, but it is not obvious from the screen, after all, the size difference is not very big. In addition, the rectangle of the iPhone 12 on the back of the body is significantly larger than the vertical row of the iPhone X dual camera. What's more, the iPhone 12 has an aluminum rectangular frame, and the iPhone X has a stainless steel rounded center frame, so the iPhone X looks more quality and feels more comfortable.
It's different. The iPhone12 has a 6.1-inch screen with a resolution of 2532x1170 pixels and a pixel density of 460PPi.
differ
The iphone x and iPhone 12 have different screens. They both have OLED screens, but the iPhoneX does
458ppi, 1000,000:1 contrast ratio, support 3D touch. On the other hand, the iPhone12 has 460ppi, 2000,000:1 contrast ratio, only touch control (which is obviously better than X). Both models have similar screen quality, the Apple 12 will have a smaller bezel, but the Apple X will use 3D touch.
The iphonex has a 5.8-inch oled screen, and the 12 has a 6.1-inch oled screen.
They're all Samsung screens, OLED screens by category, but the sensitivity and clarity of the iPhone12 will be better than the iPhoneX, and the iPhoneX is five years old, and the screen has been upgraded.