Abstract: A wearable device is described. The wearable device may be constructed of one or more flexible materials, and may be referred to as a flexible wearable device. The flexible wearable device may include a flexible housing that is made of a material that is elastically deformable, where the flexible housing at least partially surrounds components of the flexible wearable device. The flexible housing may include apertures disposed within the surface of the flexible housing to enable light to be transmitted and received through the flexible housing. The flexible wearable device may also include a printed circuit board (PCB) disposed within the flexible housing (e.g., within a cavity formed by the flexible housing). The PCB may include sensors configured to acquire physiological data from a user by transmitting light and receiving light through the apertures. The PCB may be constructed of flexible regions that are elastically deformable.

Abstract: Methods, systems, and devices for wearable devices are described. A wearable device may include a first annular member forming the frame of the wearable device. The first annular member may include one or more deformable features that are configured to structurally weaken the frame of the wearable device and the one or more deformable features may be located along a portion of the frame. In some cases, the wearable device may include a first annular member and a second annular member to form a frame of the wearable device. The second annular member may include a non-metal material. The first annular member, the second annular member, or both, may include one or more deformable features that are configured to structurally weaken the frame of the wearable device and the one or more deformable features may be located along a portion of the frame.