Our iPhone 2020 sports an all-glass body, reinforced on the inside with carbon fiber. The screen has a tall 18:9 aspect ratio, making the overall shape taller and narrower than the iPhone of today. A fingerprint sensor positioned under the display is inevitable. The only actual button on our iPhone 2020 is the power button; the home button will only exist onscreen. The volume buttons and mute switch are no longer mechanical, with vibrations driven by Apple's Taptic Engine.