iPhone X has a 5.8-inch1 all-screen Super Retina display. The back is glass, and there's a stainless steel band around the frame. The side button is on the right side of the device. There are 12 MP wide-angle and telephoto cameras on the back. There's a Quad-LED True Tone flash on the back and a SIM tray on the right side that holds a "fourth form factor" (4FF) nano-SIM card. The IMEI is etched on the SIM tray.