Oura Health Oy

Methods, systems, and devices for wearable ring device are described. A wearable ring device may include a ring-shaped housing configured to house one or more sensors configured to acquire physiological data from a user, and a flexible printed circuit board (PCB) including electrical circuitry for the one or more sensors. The wearable ring device may include one or more locking grooves disposed within an interior surface of the ring-shaped housing, the one or more locking grooves configured to receive the flexible PCB and maintain a gap between an inner circumferential surface of the ring-shaped housing and a first surface of the flexible PCB.

Methods, systems, and devices for optical coatings for glass sheets in wearable devices are described. The wearable device ring may include a housing and one or more light sources and one or more detectors at least partially disposed within the housing. The wearable ring device may include a layer of glass at least partially coupled to the housing and positioned to receive at least a first portion of light emitted from the one or more light sources. In some cases, the wearable ring device may include one or more reflective surfaces coupled to the layer of glass and positioned to reflect at least a portion of the first portion of light.

A shock-absorbing wearable ring device is described. A wearable ring device includes an inner housing and one or more sensors configured to acquire physiological data from the user, where the sensors are at least partially encapsulated within a moldable material. The wearable ring device further includes an outer housing that surrounds the housing, where an inner surface of the outer housing and an outer surface of the moldable material are separated by a gap. The wearable ring device further includes side covers disposed between the outer housing and the inner housing on a lateral sides of the wearable ring device, where the side covers are configured to undergo a mechanical deformation in response to an external force exerted on the outer housing, and where a depth of the gap between the outer housing and moldable material changes based at least in part on the mechanical deformation of the side covers.

Methods, systems, and devices for manufacturing wearable ring devices are described. A printed circuit board (PCB) including one or more sensors is disposed on or within an inner ring-shaped housing. A molding procedure is performed using a moldable material to couple the PCB with the inner ring-shaped housing. Together the inner ring-shaped housing, the PCB, and the moldable material form a ring assembly, where the ring assembly includes a first passage configured to receive a finger of the user along a first axis. Then an outer ring-shaped housing associated with a second passage and second axis is placed around the ring assembly such that the second axis of the outer ring-shaped housing is perpendicular to the first axis of the ring assembly. Then the outer ring-shaped housing may be rotated relative to the ring assembly to align the first axis and the second axis.

Methods, systems, and devices for a ring sizing system for wearable ring devices are described. A retail sizing system may include a set of ring sizing devices corresponding to a set of ring sizes and configured to transition between an open configuration and a closed configuration. Each respective ring sizing device may include one or more magnets and a locking assembly that is configured to maintain the respective ring sizing device in the closed configuration when a force exerted on the respective ring sizing device is less than a threshold, and transition the respective ring sizing device to the open configuration when the force exceeds the threshold. The retail sizing system may further include a set of sizing ports configured to receive the respective ring sizing devices, magnets, and a set of retractable cable mechanisms that retain each of the ring sizing devices in a defined position/orientation on/within the base.

Methods, systems, and devices for wearing detection are described. A method may include directing light from a light source to a detector using an optical light guide of the wearable device, where the optical light guide includes an optical interface configured to allow at least a portion of the directed light to escape the optical light guide based on a refractive property of a material contacting the optical interface. The method may include measuring, via the detector, an amount of escaped light which escaped the optical light guide, where the amount of escaped light is indicative of a level of surface contact at the optical interface of the optical light guide. The method may further include controlling an activation of one or more sensors of the wearable device based on the amount of escaped light.

Methods, systems, and devices for activity classification are described. A system may receive physiological data associated with a user via a wearable device, where the physiological data includes at least motion data. The system may identify an activity segment during which the user is engaged in a physical activity based on the motion data, where the activity segment is associated with activity segment data including at least the physiological data collected during the activity segment. The system may generate activity classification data associated with the activity segment based on the activity segment data, the activity classification data including a set of classified activity types and corresponding confidence values. The system may then cause a graphical user interface (GUI) of a user device to display the activity segment data and at least one classified activity type of the set of classified activity types.

Methods, systems, and devices for ring-shaped housing alignment features are described. The wearable ring device may include an inner shell and a printed circuit board. The inner shell may include a plurality of apertures, a first set of alignment features including planar regions that are formed into an arcuate ridge of the inner shell, and a second set of alignment features. The plurality of apertures may be aligned within the planar regions. The printed circuit board may include optoelectronic components and rigid regions. The rigid regions are configured to engage with the first set of alignment features to align the optoelectronic components in a first direction, and one or more features of the printed circuit board are configured to engage with the second set of alignment features to align the optoelectronic components in other directions such that the optoelectronic components are aligned with the plurality of apertures.