Electronic accessories for wearable devices

Abstract

A system is described that includes an accessory device configured to removably attach to a wearable physiological monitoring device including at least an optical sensor. The accessory device can include a heat stimulus source and a battery configured to power the heat stimulus source. The accessory device can also include a housing having a first opening configured to enable the optical sensor of the wearable physiological monitoring device to contact a skin of a user wearing the wearable physiological monitoring device and/or a second opening configured to enable a display of the physiological monitoring device to be viewable through the second opening. The heat stimulus source can be positioned along at least some portions of a periphery of the first opening. The heat stimulus source can include concentric heating elements. The wearable physiological monitoring device can be configured to be secured to a wrist of a user.

Dependencies are inferred from the claim text.