Abstract: The present disclosure relates generally to implementing biometric authentication, including providing user interfaces for: while the electronic device is in a first state in which a respective function of the electronic device is disabled, detecting one or more activations of the button; and in response to detecting the one or more activations of the button: capturing, with the one or more biometric sensors that are separate from the button, biometric data; if the biometric data satisfies biometric authentication criteria, transitioning the electronic device to a second state in which the respective function of the electronic device is enabled; and if the biometric data does not satisfy the biometric authentication criteria, maintaining the electronic device in the first state and displaying, on the display, an indication that biometric authentication has failed.

Abstract: An electronic device displays a representation of a field of view of a camera that includes a view of a three-dimensional space. The representation of the field of view is updated over time based on changes to current visual data detected by at least one of the one or more cameras. Movement of the electronic device moves the field of view of the camera in a first direction. While detecting the movement, the electronic device: updates the representation of the field of view in accordance with the movement; identifies one or more elements in the representation of the field of view that extend along the first direction; and, based at least in part on the determination of the one or more elements, displays, in the representation of the field of view, a guide that extends in the first direction and that corresponds to one of the identified elements.

Abstract: A computer system displays, in a user interface, a first representation of a body part that is in a field of view of the one or more cameras. The computer system detects, using the one or more cameras, movement of the body part. The displayed first representation of the body part is updated in accordance with the movement of the body part. The computer system, while displaying the first representation of the body part, displays an indicator at a fixed location relative to the first representation of the body part. The indicator is displayed at a first position in the user interface that overlays at least a portion of the representation of the body part, the indicator is updated in accordance with the movement of the body part, and the indicator includes an indication of a suggested direction of movement of the body part.

Abstract: An electronic device displays an application user interface that includes a representation of a field of view of one or more cameras. The representation of the field of view is updated over time based on changes to current visual data detected by the one or more cameras, and the field of view includes a physical object in a three-dimensional space. While the device is a first distance from the physical object, the device displays a representation of a measurement that corresponds to the physical object. After the device has moved to a second distance from the physical object, the device displays, a second representation of the measurement that includes one or more scale markers along at least a portion of the second representation of the measurement that were not displayed with the first representation of the measurement.

Abstract: A computer system, while displaying a view of a computer-generated environment, detects movement of a physical object, and in response: in accordance with a determination that a user is within a threshold distance of a first portion of the physical object and that the physical object meets preset criteria, the computer system changes an appearance of virtual content displayed at a position corresponding to a current location of the physical object's first portion, without changing an appearance of virtual content displayed at a position corresponding to the physical object's second portion; and in accordance with a determination that the user is within the threshold distance and that the physical object does not meet the preset criteria, the computer system changes an appearance of virtual content displayed at a position corresponding to a current location of the physical object's first portion.

Abstract: A computer system displays an annotation placement user interface that includes a representation of a field of view of one or more cameras that is updated over time based on changes in the field of view, and a placement user interface element indicating a location. If the placement user interface element is over a representation of a first type of feature in the physical environment, the appearance of the placement user interface element changes to indicate an anchor point corresponding to the first type of feature, and the system displays a first set of guides. If the placement user interface element is over a representation of a second, different type of feature in the physical environment, the appearance of the placement user interface element changes to indicate an anchor point corresponding to the second type of feature, and the system displays a second, different set of guides.

Abstract: A computer system displays an annotation placement user interface that includes a representation of a field of view of one or more cameras that is updated over time based on changes in the field of view, and a placement user interface element indicating a virtual annotation placement location. While the placement user interface element indicates a first location in the representation of the field of view, receiving a first annotation placement input; and, in response, displaying an annotation at the first location in the representation of the field of view, and displaying one or more first guides that extend from the first location in the representation of the field of view.

Abstract: An electronic device displays an application user interface that includes a representation of a field of view of one or more cameras. The representation of the field of view is updated over time based on changes to current visual data detected by the one or more cameras, and the field of view includes a physical object in a three-dimensional space. While the device is a first distance from the physical object, the device displays a representation of a measurement that corresponds to the physical object. After the device has moved to a second distance from the physical object, the device displays, a second representation of the measurement that includes one or more scale markers along at least a portion of the second representation of the measurement that were not displayed with the first representation of the measurement.

Abstract: A computer system displays an annotation placement user interface that includes a representation of a field of view of one or more cameras that is updated over time based on changes in the field of view, a placement user interface element indicating a virtual annotation placement location. If the placement user interface element is over a representation of a physical feature in the physical environment that can be measured, the appearance of the placement user interface element changes in accordance with one or more aspects of the representation of the physical feature, and, in response to an input to perform one or more measurements of the physical feature: if the physical feature is a first type of feature, measurements of a first measurement type are made; and, if a second, different type of physical feature, measurements of a second, different measurement type are made.

Abstract: A computer system displays an annotation placement user interface that includes a representation of a field of view of one or more cameras that is updated over time based on changes in the field of view, and a placement user interface element indicating a location. If the placement user interface element is over a representation of a first type of feature in the physical environment, the appearance of the placement user interface element changes to indicate an anchor point corresponding to the first type of feature, and the system displays a first set of guides. If the placement user interface element is over a representation of a second, different type of feature in the physical environment, the appearance of the placement user interface element changes to indicate an anchor point corresponding to the second type of feature, and the system displays a second, different set of guides.

Abstract: A computer system displays an annotation placement user interface that includes a representation of a field of view of one or more cameras that is updated over time based on changes in the field of view, a placement user interface element indicating a virtual annotation placement location. If the placement user interface element is over a representation of a physical feature in the physical environment that can be measured, the appearance of the placement user interface element changes in accordance with one or more aspects of the representation of the physical feature, and, in response to an input to perform one or more measurements of the physical feature: if the physical feature is a first type of feature, measurements of a first measurement type are made; and, if a second, different type of physical feature, measurements of a second, different measurement type are made.

Abstract: An electronic device displays an application user interface that includes a representation of a field of view of one or more cameras. The representation of the field of view is updated over time based on changes to current visual data detected by the one or more cameras, and the field of view includes a physical object in a three-dimensional space. While the device is a first distance from the physical object, the device displays a representation of a measurement that corresponds to the physical object, and one or more first scale markers along the representation of the measurement at a first scale. After the device has moved to a second distance from the physical object, the device displays, at a second scale that is different from the first scale, one or more second scale markers along at least a portion of the representation of the measurement.

Abstract: A computer system displays an annotation placement user interface that includes a representation of a field of view of one or more cameras that is updated over time based on changes in the field of view, and a placement user interface element indicating a virtual annotation placement location. If the placement user interface element is over a representation of a first type of physical feature, the annotation placement user interface operates in a first annotation mode for adding annotations of a first type. In response to detecting movement of the one or more cameras relative to the physical environment, the system updates the representation of the field of view. If the placement user interface element is over a representation of a second, different type of physical feature, the annotation placement user interface operates in a second, different annotation mode for adding annotations of a second, different type.

Abstract: An electronic device displays an application user interface that includes a representation of a field of view of one or more cameras. The representation of the field of view is updated over time based on changes to current visual data detected by the one or more cameras, and the field of view includes a physical object in a three-dimensional space. While the device is a first distance from the physical object, the device displays a representation of a measurement that corresponds to the physical object, and one or more first scale markers along the representation of the measurement at a first scale. After the device has moved to a second distance from the physical object, the device displays, at a second scale that is different from the first scale, one or more second scale markers along at least a portion of the representation of the measurement.