Abstract: Methods, systems, and devices for a wearable ring device are described. A wearable ring device may include a transparent lens positioned within an aperture of a housing of the wearable device, where at least a first portion of the transparent lens may be electrically conductive. The wearable ring device may additionally include one or more optical components positioned within the wearable ring device such that light passes into or from the one or more optical components through at least the first portion of the transparent lens. Further, the wearable ring device may include circuitry electrically coupled with the first portion of the transparent lens and configured to generate or detect a current through the first portion of the transparent lens.

Abstract: Methods, systems, and devices for a wearable ring device are described. In some cases, the wearable ring device may include a ring-shaped housing, where the ring-shaped housing includes an outer surface and an inner surface. The wearable ring device may additionally include a first light emitting component and a second light emitting component arranged in a first radial direction along the inner surface, as well as a first set of light detecting components located at a first position relative to the first light emitting component and the second light emitting component. In such cases, the first set of light detecting components may include at least two light detecting components arranged in an axial direction along the inner surface, where the axial direction is perpendicular to the first radial direction.

Abstract: Methods, systems, and devices for a wearable ring device are described. In some cases, the wearable ring device may include a ring-shaped housing, where the ring-shaped housing includes an outer surface and an inner surface. The wearable ring device may additionally include a first light emitting component and a second light emitting component arranged in a first radial direction along the inner surface, as well as a first set of light detecting components located at a first position relative to the first light emitting component and the second light emitting component. In such cases, the first set of light detecting components may include at least two light detecting components arranged in an axial direction along the inner surface, where the axial direction is perpendicular to the first radial direction.

Abstract: Methods, systems, and devices for manufacturing a wearable ring device are described. The manufacturing assembly may rotate, by a rotational component, an inner housing member of the wearable ring device to a radial orientation based on an optical alignment process. A positioning component of the manufacturing assembly may insert and align an optical component of a flexible circuit assembly into at least one aperture of the inner housing member by moving the flexible circuit assembly from a first position adjacent to the inner housing member to a second position on the inner housing member. The manufacturing assembly may secure one or more edges of the flexible circuit assembly onto the inner housing member using a plurality of arms of the positioning component and apply, by an automatic adhesive dispensing device of the manufacturing assembly, a polymeric material to adhere the flexible circuit assembly to the inner housing member.

Abstract: Methods, systems, and devices for operating a wearable device are described. A wearable device may include a first portion that has one or more electrical contacts and at least one sensor configured to measure one or more physiological parameters of a user. The first portion may also include one or more detachment features configured to detachably couple a removable battery with the first portion. The removal battery may be coupled with one or more electrical contacts for the removable battery. The removable battery may also be coupled with one or more counterpart detachment features that are configured to interface with the one or more detachment features of the first portion such that the one or more electrical contacts for the removable battery connect with the one or more electrical contacts of the first portion when the removable battery is detachably coupled with the first portion.

Abstract: Methods, systems, and devices for manufacturing a wearable ring device are described. The manufacturing assembly may rotate, by a rotational component, an inner housing member of the wearable ring device to a radial orientation based on an optical alignment process. A positioning component of the manufacturing assembly may insert and align an optical component of a flexible circuit assembly into at least one aperture of the inner housing member by moving the flexible circuit assembly from a first position adjacent to the inner housing member to a second position on the inner housing member. The manufacturing assembly may secure one or more edges of the flexible circuit assembly onto the inner housing member using a plurality of arms of the positioning component and apply, by an automatic adhesive dispensing device of the manufacturing assembly, a polymeric material to adhere the flexible circuit assembly to the inner housing member.

Abstract: Methods, systems, and devices for a functional cover are described. A removable cover (e.g., a functional cover) for a wearable ring device (e.g., a ring wearable) may include one or more electrical components positioned at least partially within the removable cover. The removable cover may further include a first electrical component exposed to an external surface of the removable cover, the first electrical component configured to contact (e.g., physical and electrically contact) a second electrical component of the wearable ring device, such as when the removable cover is in a mounted state on the wearable ring device. The first electrical component may be further configured to transfer electrical current, data, or both, between the one or more electrical components of the removable cover and one or more additional electrical components of the wearable ring device.

Abstract: Methods, systems, and devices for operating a wearable device are described. A wearable device may include a first portion that has one or more electrical contacts and at least one sensor configured to measure one or more physiological parameters of a user. The first portion may also include one or more detachment features configured to detachably couple a removable battery with the first portion. The removal battery may be coupled with one or more electrical contacts for the removable battery. The removable battery may also be coupled with one or more counterpart detachment features that are configured to interface with the one or more detachment features of the first portion such that the one or more electrical contacts for the removable battery connect with the one or more electrical contacts of the first portion when the removable battery is detachably coupled with the first portion.

Abstract: Methods, systems, and devices for ring charging with a rotating charging field are described. The charging device may include a base and a charging port configured to receive a wearable device in a plurality of radial orientations. The charging device may include one or more inductive charging components configured to generate a magnetic charging field to wirelessly charge the wearable device. The charging device may include a controller that is configured to adjust one or more operational parameters of the one or more inductive charging components to rotate the magnetic charging field around the charging port. For example, the controller may be configured to sequentially activate and deactivate the plurality of inductive charging components to rotate the magnetic charging field and/or cause an actuator mechanism to physically rotate the one or more inductive charging components to rotate the magnetic charging field.

Abstract: Systems and devices for a ring wearable cover with non-deformable circumference are described. The removable cover for a wearable ring device may include a ring-shaped surface configured to extend around a full circumference of the wearable ring device when the removable cover is in a mounted state on the wearable ring device and one or more mounting features that are disposed on the ring-shaped surface. The one or more mounting features may be configured to interact with a surface of the wearable ring device to lock the removable cover onto the wearable ring device when the removable cover is in the mounted state on the wearable ring device. In some cases, a diameter of the removable cover is unchanged while the removable cover transitions from the mounted state on the wearable ring device to an unmounted state off of the wearable ring device.

Abstract: Methods, systems, and devices for manufacturing a wearable ring device are described. The manufacturing assembly may rotate, by a rotational component, an inner housing member of the wearable ring device to a radial orientation based on an optical alignment process. A positioning component of the manufacturing assembly may insert and align an optical component of a flexible circuit assembly into at least one aperture of the inner housing member by moving the flexible circuit assembly from a first position adjacent to the inner housing member to a second position on the inner housing member. The manufacturing assembly may secure one or more edges of the flexible circuit assembly onto the inner housing member using a plurality of arms of the positioning component and apply, by an automatic adhesive dispensing device of the manufacturing assembly, a polymeric material to adhere the flexible circuit assembly to the inner housing member.

Abstract: Methods, systems, and devices for a functional cover are described. A removable cover (e.g., a functional cover) for a wearable ring device (e.g., a ring wearable) may include one or more electrical components positioned at least partially within the removable cover. The removable cover may further include a first electrical component exposed to an external surface of the removable cover, the first electrical component configured to contact (e.g., physical and electrically contact) a second electrical component of the wearable ring device, such as when the removable cover is in a mounted state on the wearable ring device. The first electrical component may be further configured to transfer electrical current, data, or both, between the one or more electrical components of the removable cover and one or more additional electrical components of the wearable ring device.

Abstract: Methods, systems, and devices for a functional cover are described. A removable cover (e.g., a functional cover) for a wearable ring device (e.g., a ring wearable) may include one or more electrical components positioned at least partially within the removable cover. In some cases, the functional cover may wireless connect with the ring wearable. The removable cover may further include a first inductive component within the removable cover, where the first inductive component is configured to wirelessly communicate with a second inductive component of the wearable ring device when the removable cover is in a mounted state on the wearable ring device. The first inductive component of the removable cover may be configured to transfer electrical current, data, or both, between the one or more electrical components of the removable cover and one or more additional electrical components of the wearable ring device.

Abstract: Methods, systems, and devices for operating a wearable device are described. The wearable device may include a flexible inner body in the form of an open-ended ring that includes a first end that is movable relative to a second end such that an inner circumference of the inner body is expandable. The wearable device may include a flexible circuit board disposed concentrically around an outer circumference of the inner body and in the form of an open-ended ring. And the wearable device may include a flexible outer clip disposed concentrically around the flexible circuit board and in the form of an open-ended ring. The outer clip may be configured to provide a compressive force on the flexible circuit board and the outer circumference of the inner body.

Abstract: Systems and devices for a ring wearable cover with deformable circumference are described. The removable cover for a wearable ring device may include a ring-shaped surface and one or more mechanical features integrated into the ring-shaped surface and configured to transition between an open state and a closed state. In the closed state, the ring-shaped surface may be configured to extend around a full circumference of the wearable ring device. In some cases, a diameter of the removable cover in the open state is greater than a diameter of the removable cover in the closed state, and the diameter of the removable cover in the closed state is sized to form an interference fit with a surface of the wearable ring device to lock the removable cover onto the wearable ring device when the removable cover is in the closed state.

Abstract: Methods, systems, and devices for a functional cover are described. A removable cover (e.g., a functional cover) for a wearable ring device (e.g., a ring wearable) may include one or more electrical components positioned at least partially within the removable cover. In some cases, the functional cover may wireless connect with the ring wearable. The removable cover may further include a first inductive component within the removable cover, where the first inductive component is configured to wirelessly communicate with a second inductive component of the wearable ring device when the removable cover is in a mounted state on the wearable ring device. The first inductive component of the removable cover may be configured to transfer electrical current, data, or both, between the one or more electrical components of the removable cover and one or more additional electrical components of the wearable ring device.

Abstract: Methods, systems, and devices for a functional cover are described. A removable cover (e.g., a functional cover) for a wearable ring device (e.g., a ring wearable) may include one or more electrical components positioned at least partially within the removable cover. The removable cover may further include a first electrical component exposed to an external surface of the removable cover, the first electrical component configured to contact (e.g., physical and electrically contact) a second electrical component of the wearable ring device, such as when the removable cover is in a mounted state on the wearable ring device. The first electrical component may be further configured to transfer electrical current, data, or both, between the one or more electrical components of the removable cover and one or more additional electrical components of the wearable ring device.

Abstract: Systems and devices for a ring wearable cover with non-deformable circumference are described. The removable cover for a wearable ring device may include a ring-shaped surface configured to extend around a full circumference of the wearable ring device when the removable cover is in a mounted state on the wearable ring device and one or more mounting features that are disposed on the ring-shaped surface. The one or more mounting features may be configured to interact with a surface of the wearable ring device to lock the removable cover onto the wearable ring device when the removable cover is in the mounted state on the wearable ring device. In some cases, a diameter of the removable cover is unchanged while the removable cover transitions from the mounted state on the wearable ring device to an unmounted state off of the wearable ring device.

Abstract: Methods, systems, and devices for operating a wearable device are described. A wearable device may include a first portion that has one or more electrical contacts and at least one sensor configured to measure one or more physiological parameters of a user. The first portion may also include one or more detachment features configured to detachably couple a removable battery with the first portion. The removal battery may be coupled with one or more electrical contacts for the removable battery. The removable battery may also be coupled with one or more counterpart detachment features that are configured to interface with the one or more detachment features of the first portion such that the one or more electrical contacts for the removable battery connect with the one or more electrical contacts of the first portion when the removable battery is detachably coupled with the first portion.

Abstract: An apparatus for directing fluid into and out of a fluidic device includes two or more fluid prime channels connected to a fluid inlet of the fluidic device, a flow control valve for each fluid prime channel to control flow between the fluid prime channel and the fluid inlet, one or more outlet channels connected to a fluid outlet of the fluidic device, and a flow control valve for each outlet channel to control flow between the fluid outlet and the associated outlet channel. An apparatus for delivering fluids to a fluid inlet includes a plate that is rotatable about an axis of rotation and a plurality of fluid compartments disposed on the plate, each compartment having a fluid exit port disposed at a common radial distance from the axis of rotation and positioned to align with the fluid inlet as the plate rotates about the axis of rotation.