A method, comprising: at an electronic device with one or more cameras and a display; displaying, on the display, a first user interface; while displaying the first user interface, detecting the occurrence of a condition that corresponds to initiating a biometric enrollment process for enrolling a respective type of biometric feature; in response to detecting the occurrence of a condition that corresponds to initiating the biometric enrollment process, displaying, on the display, a digital viewfinder including a preview of image data captured by the one or more cameras, wherein the preview of image data includes a first portion of the field of view of the one or more cameras and a second portion of the field of view of the one or more cameras, wherein the second portion of the field of view of the one or more cameras surrounds the first portion of the field of view of the one or more cameras; and after initiating the biometric enrollment process, and while detecting a biometric feature of the respective type in the field of view of the one or more cameras: in accordance with a determination that the biometric feature of the respective type meets alignment criteria, including that the biometric feature is substantially within the first portion, emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras, wherein emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras includes visually obscuring a portion of the digital viewfinder that corresponds to the second portion of the field of view of the one or more cameras; and in accordance with a determination that the biometric feature of the respective type does not meet alignment criteria, maintaining display of the digital viewfinder without emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras. displaying, on the display, a first user interface; while displaying the first user interface, detecting the occurrence of a condition that corresponds to initiating a biometric enrollment process for enrolling a respective type of biometric feature; in response to detecting the occurrence of a condition that corresponds to initiating the biometric enrollment process, displaying, on the display, a digital viewfinder including a preview of image data captured by the one or more cameras, wherein the preview of image data includes a first portion of the field of view of the one or more cameras and a second portion of the field of view of the one or more cameras, wherein the second portion of the field of view of the one or more cameras surrounds the first portion of the field of view of the one or more cameras; and after initiating the biometric enrollment process, and while detecting a biometric feature of the respective type in the field of view of the one or more cameras: in accordance with a determination that the biometric feature of the respective type meets alignment criteria, including that the biometric feature is substantially within the first portion, emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras, wherein emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras includes visually obscuring a portion of the digital viewfinder that corresponds to the second portion of the field of view of the one or more cameras; and in accordance with a determination that the biometric feature of the respective type does not meet alignment criteria, maintaining display of the digital viewfinder without emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras. in accordance with a determination that the biometric feature of the respective type meets alignment criteria, including that the biometric feature is substantially within the first portion, emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras, wherein emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras includes visually obscuring a portion of the digital viewfinder that corresponds to the second portion of the field of view of the one or more cameras; and in accordance with a determination that the biometric feature of the respective type does not meet alignment criteria, maintaining display of the digital viewfinder without emphasizing the first portion of the field of view of the one or more cameras relative to the second portion of the field of view of the one or more cameras.