Abstract: An electronic device such as a wearable device may have an optical sensor. The optical sensor may have a light source such as one or more visible-light light-emitting diodes or other light-emitting devices and may have a light detector formed from one or more photodetectors. The wearable device may have a wearable housing in which the optical sensor is mounted. During operation, light from the light source may pass through a transparent portion of the housing, may reflect from an external object such as a wrist or other body part of a user, and may be received by the photodetectors after passing through light control members. The light control members may be arranged in a ring with a center and may have curved shapes with concave surfaces that face the center. Each light control member may be formed from a stack of laminated bent light control films.

Abstract: An input mechanism for a portable electronic device includes a rotational manipulation mechanism, such as a cap or shaft. The input mechanism also includes a sensor having first capacitive elements coupled to the manipulation mechanism, second capacitive elements, and a dielectric positioned between the first and second capacitive elements. Movement of the manipulation mechanism alters the positions of the first and second capacitive elements with respect to each other and is determinable based on capacitance changes resulting therefrom. In some implementations, the second capacitive elements may be part of an inner ring or partial ring nested at least partially within an outer ring or partial ring.

Abstract: An electronic device may be provided with a display. The display may have a flexible display layer covered by a protective display cover layer. The flexible display layer may be an organic light-emitting diode display layer or other layer with a flexible substrate. The flexible display layer may have a central region with peripheral edges. The central region may be rectangular, may be octagonal, or may have other shapes. Strip-shaped protrusions may extend along each of the peripheral edges of the central region. The strip-shaped protrusions may be bent to provide the protrusions with curved surface profiles. The display cover layer may have a cushion shape with bowed edges that overlap parts of the strip-shaped protrusions, may have curved inner and outer surfaces and/or planar surfaces, may have rounded corners with compound curvature, may have edges with curved surface profiles, and/or may have other configurations.

Abstract: An electronic device disclosed herein is adapted to determine a location of touch input when liquid is present. The electronic device may include a force detection assembly having force detection units. When a touch input is applied to the display layer, the force detection units generates a differential capacitance that is used to determine a location of the touch input. The electronic device may further include a confidence interval algorithm that uses the location and builds a confidence interval around the location. The electronic device may include a touch input components that can determine whether the liquid is present. The confidence interval algorithm determines whether the liquid is present within the confidence interval and provides an updated location of the touch input. The electronic device further includes a machine learning algorithm designed predict a software application the user intends to select using the touch input.

Abstract: Device localization (e.g., ultra-wideband device localization) may be used to provide coordinated outputs and/or receive coordinated inputs using multiple devices. Providing coordinated outputs may include providing partial outputs using multiple devices, modifying an output of a device based on its position and/or orientation relative to another device, and the like. In some cases, each device of a set of multiple devices may provide a partial output, which combines with partial outputs of the remaining devices to produce a coordinated output.

Abstract: An input mechanism for a portable electronic device includes a rotational manipulation mechanism, such as a cap or shaft. The input mechanism also includes a sensor having first capacitive elements coupled to the manipulation mechanism, second capacitive elements, and a dielectric positioned between the first and second capacitive elements. Movement of the manipulation mechanism alters the positions of the first and second capacitive elements with respect to each other and is determinable based on capacitance changes resulting therefrom. In some implementations, the second capacitive elements may be part of an inner ring or partial ring nested at least partially within an outer ring or partial ring.

Abstract: A biometric button assembly may be disposed in an opening of an enclosure of an electronic device. The biometric button assembly may include an input member that forms an exterior surface of the button housing and is configured to receive inputs, for example from a user of the electronic device. The biometric button assembly may further include a biometric sensor for detecting the received inputs and transmitting a signal to a processor of the electronic device. The signal may correspond to a biometric characteristic, such as a fingerprint. A flexible conduit may transmit the signal to the processor. A portion of the flexible conduit and a seal may be positioned between the button assembly and the enclosure that prevents contaminants from entering the button housing and the enclosure.

Abstract: An electronic device may be provided with a display. The display may have a flexible display layer covered by a protective display cover layer. The flexible display layer may be an organic light-emitting diode display layer or other layer with a flexible substrate. The flexible display layer may have a central region with peripheral edges. The central region may be rectangular, may be octagonal, or may have other shapes. Strip-shaped protrusions may extend along each of the peripheral edges of the central region. The strip-shaped protrusions may be bent to provide the protrusions with curved surface profiles. The display cover layer may have a cushion shape with bowed edges that overlap parts of the strip-shaped protrusions, may have curved inner and outer surfaces and/or planar surfaces, may have rounded corners with compound curvature, may have edges with curved surface profiles, and/or may have other configurations.

Abstract: An electronic device disclosed herein is adapted to determine a location of touch input when liquid is present. The electronic device may include a force detection assembly having force detection units. When a touch input is applied to the display layer, the force detection units generates a differential capacitance that is used to determine a location of the touch input. The electronic device may further include a confidence interval algorithm that uses the location and builds a confidence interval around the location. The electronic device may include a touch input components that can determine whether the liquid is present. The confidence interval algorithm determines whether the liquid is present within the confidence interval and provides an updated location of the touch input. The electronic device further includes a machine learning algorithm designed predict a software application the user intends to select using the touch input.

Abstract: A wearable electronic device includes a body, a housing component, a band operable to attach the body to a body part of a user, and a force sensor coupled to the housing component. The force sensor is operable to produce a force signal based on a force exerted between the body part of the user and the housing component. A processing unit of the wearable electronic device receives the force signal from the force sensor and determines the force exerted on the housing component based thereon. The processing unit may use that force to determine a tightness of the band, determine health information for the user, adjust determined force exerted on a cover glass, and/or to perform various other actions.

Abstract: A wearable electronic device includes a body, a housing component, a band operable to attach the body to a body part of a user, and a force sensor coupled to the housing component. The force sensor is operable to produce a force signal based on a force exerted between the body part of the user and the housing component. A processing unit of the wearable electronic device receives the force signal from the force sensor and determines the force exerted on the housing component based thereon. The processing unit may use that force to determine a tightness of the band, determine health information for the user, adjust determined force exerted on a cover glass, and/or to perform various other actions.

Abstract: A biometric button assembly may be disposed in an opening of an enclosure of an electronic device. The biometric button assembly may include an input member that forms an exterior surface of the button housing and is configured to receive inputs, for example from a user of the electronic device. The biometric button assembly may further include a biometric sensor for detecting the received inputs and transmitting a signal to a processor of the electronic device. The signal may correspond to a biometric characteristic, such as a fingerprint. A flexible conduit may transmit the signal to the processor. A portion of the flexible conduit and a seal may be positioned between the button assembly and the enclosure that prevents contaminants from entering the button housing and the enclosure.

Abstract: An electronic device may be provided with a display. The display may be mounted in a housing. Electronic components may be mounted in an interior region of the device. The display may have an array of pixels configured to display an image. A border region such as a ring-shaped border may run along the outermost peripheral edge of the array of pixels. The display may be covered by a transparent display cover layer. The transparent display cover layer may have opposing inner and outer surfaces. The inner surface may face the interior region of the device. A laser-marked light-scattering structure may be embedded within an interior portion of the display cover layer between the inner and outer surfaces. The light-scattering structure may be located in the border region and may be illuminated by a light-emitting device.

Abstract: A wearable electronic device includes a body, a housing component, a band operable to attach the body to a body part of a user, and a force sensor coupled to the housing component. The force sensor is operable to produce a force signal based on a force exerted between the body part of the user and the housing component. A processing unit of the wearable electronic device receives the force signal from the force sensor and determines the force exerted on the housing component based thereon. The processing unit may use that force to determine a tightness of the band, determine health information for the user, adjust determined force exerted on a cover glass, and/or to perform various other actions.

Abstract: A watch having a camera is disclosed. The watch can include a housing having a front side, a back side, and an attachment interface configured to couple to a watch band. A camera can be mounted to the housing and configured to capture a picture of a scene through the back side of the housing. A display can be visible through the front side of the housing and configured to display the picture.

Abstract: A wearable electronic device includes a body, a housing component, a band operable to attach the body to a body part of a user, and a force sensor coupled to the housing component. The force sensor is operable to produce a force signal based on a force exerted between the body part of the user and the housing component. A processing unit of the wearable electronic device receives the force signal from the force sensor and determines the force exerted on the housing component based thereon. The processing unit may use that force to determine a tightness of the band, determine health information for the user, adjust determined force exerted on a cover glass, and/or to perform various other actions.

Abstract: A method for calibrating a magnetometer of an electronic device can include detecting a change in a magnetism of the electronic device, collecting a first magnetic field data from the magnetometer at sampling frequency of at least 1 hertz, generating an elliptical calibration model based at least partially on the collected first magnetic field data, collecting a second magnetic field data from the magnetometer, and fitting the collected second magnetic field data to a sphere using the elliptical calibration model.

Abstract: An electronic device may be provided with a display. The display may be mounted in a housing. Electronic components may be mounted in an interior region of the device. The display may have an array of pixels configured to display an image. A border region such as a ring-shaped border may run along the outermost peripheral edge of the array of pixels. The display may be covered by a transparent display cover layer. The transparent display cover layer may have opposing inner and outer surfaces. The inner surface may face the interior region of the device. A laser-marked light-scattering structure may be embedded within an interior portion of the display cover layer between the inner and outer surfaces. The light-scattering structure may be located in the border region and may be illuminated by a light-emitting device.

Abstract: A watch can include a user input component that employs an optical sensor to receive input from a user. The input components provide an ability for a user to interact with the watch in a manner similar to how a user would interact with a crown that is rotatable and/or translatable. The user can provide motions and gestures near the input component that the input component can detect and interpret and user inputs to control an aspect of the watch. The motions and gestures provided by the user can be directly detected with optical systems of the input component, so that the number of moving parts are reduced and space within the watch is more efficiently utilized. While providing these benefits, the input component provides a user experience that simulates user interactions with a crown that is rotatable and/or translatable.

Abstract: A watch can include a user input component that employs an optical sensor to receive input from a user. The input components provide an ability for a user to interact with the watch in a manner similar to how a user would interact with a crown that is rotatable and/or translatable. The user can provide motions and gestures near the input component that the input component can detect and interpret and user inputs to control an aspect of the watch. The motions and gestures provided by the user can be directly detected with optical systems of the input component, so that the number of moving parts are reduced and space within the watch is more efficiently utilized. While providing these benefits, the input component provides a user experience that simulates user interactions with a crown that is rotatable and/or translatable.