When Apple launched the iPhone 7 and iPhone 7 Plus last month, it took away the physical Home button, instead leaving behind a fixed panel with haptic feedback to simulate a button press. Future iPhones may ditch this vestigial Home button altogether (and with it, traditional Touch ID) to allow for a more advanced way to read your fingerprint.

According

Source: Hot Hardware – Apple Patent Reveals Touch ID Fingerprint Sensor Tech That Works Through Display