Abstract: Accessory devices for portable electronic devices are described. An exemplary accessory device can include a first segment coupled to a second segment via a first hinge assembly. The accessory can include a third segment coupled to the second segment via a second hinge assembly such that the second segment is positioned between the first and third segments. The accessory device can be arranged between a closed configuration and a configuration of a stand that supports the portable electronic device at a viewing angle. At the support configuration, the second segment can be at an acute angle relative to the first segment to shift the center of gravity of the system towards the middle. The third segment can be suspended above the first segment and be inclined outwards. The hinge assemblies of the system can be sufficiently stiff to withstand the weight of the electronic device.

Abstract: This application relates to earbuds configured with one or more biometric sensors. At least one of the biometric sensors is configured to be pressed up against a portion of the tragus for making biometric measurements. In some embodiments, the housing of the earbud can be symmetric so that the earbud can be worn interchangeably in either a left or a right ear of a user. In such an embodiment, the earbud can include a sensor and circuitry configured to determine and alter operation of the earbud in accordance to which ear the earbud is determined to be sitting in.