Our Galaxy s21 Ultra screen protector supports fingerprint unlock and there is no annoying circle in the fingerprint area of our screen protector. If the one can not read your fingerprint, Only visible to the persons directly in front of screen & Keep your information invisible to other people besides. It is your best tools to keep your personal and sensitive information safe effectively. (The privacy screen will darken to prevent the peeking eyes near you, so you should to turn your device display brightness up when use it.) Upgraded all-clear adhesive, not only on the edges, but also the touchscreen area, sticking firmly on your phone to maintain the original screen touch sensitivity. You won't see the rainbow effect as other screen protectors may have on the phone screen. Made with Self-healing Flexible film which could effectively protect your phone screen from daily damage. It is super clear and smooth, keep you a very real touch sensitive and viewing experience.