iPhone itself falls in the premium category, however along with Apple iPhone 8 and the Apple iPhone 8 Plus the company launched the Apple iPhone X a high end premium iPhone that features a 5.8 inch OLED Super Retina screen with 2436 x 1125 pixels resolution.
So the only thing different on the iPhone X when compared with the iPhone 8 / 8 Plus is the screen size, resolution and display type. The iPhone X is using OLED Super Retina HD display of size 5.8 inches with 2436 x 1125 pixels resolution.
The iPhone X is also using A11 6 core Bionic 64 bit processor with M11 motion co processor and 3 core GPU. It is IP67 certified and users get option to go with 64GB or 256GB storage. iOS 11 runs the show.
There are dual cameras on the back a 12MP wide angle with f/1.8 aperture and a telephoto camera with a f/2.4 aperture. It can shoot Slow mo in 1080p at 240 fps and 4K at 60fps. Front camera is a 7MP shooter.
iPhone X comes with TrueDepth camera technology for FaceID facial recognition and stereo speakers. Now the interesting thing on the iPhone X is that it does not come with finger print sensor, you use face unlock.
Key features are 4G VoLTE, GPS, Bluetooth 5, Wi-Fi and NFC. The non-removable battery supports fast charging can supports wireless charging (Qi). Apple iPhone X price starts from $999 for 64GB version and $1149 for 256GB version.