Compatible phone models: For Samsung Galaxy S22, screen size: 6.8 inches [specially designed for Samsung Galaxy S21 ultra] due to the curved edge design of Galaxy S21 ultra mobile phone, in order to make you have a better experience when selecting the protective cover with our galaxy S21 ultra screen protective film. Careful calculation shows that the size of the screen protective film is small, so there is enough space to handle the mobile phone case and provide maximum protection at the same time. [support fingerprint unlocking] unlike any substitute on the market, our HD tempered glass Galaxy S21 ultra screen protective film will be fully used with the ultrasonic fingerprint scanner. The screen protective film will not affect the touch response and bring you a perfect unlocking experience. [privacy protection] Samsung Galaxy S21 ultra toughened glass privacy screen protection film can only be seen by people directly in front of the screen, which is the best tool to effectively protect the security of individuals and sensitive information. (Note: the glass protective film of Galaxy S21 super privacy screen does not support fingerprint unlocking, but it will not affect face recognition and password unlocking.) [touch sensitivity] our Samsung Galaxy S21 ultra screen protector is fully compatible with the sensitivity of the touch screen and retains the original high response touch feeling of your phone without any interference. Please turn on the touch sensitivity switch before installation. Step: Set - display - touch sensitivity switch.