Apple iPhone 8, 4G, 64GB - Gold The display is 4.7 inches (diagonal). The glass front is flat with curved edges. The back is glass, and there's an anodized aluminum band around the frame. The side button is on the right side of the device. The device has a solid-state Home button with Touch ID. 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.