Patent 9720443 was granted and assigned to Nike, Inc. on August, 2017 by the United States Patent and Trademark Office.
A wearable device assembly has a housing supporting a controller and a display. The display may comprise one or more light guides, where each guide is operatively coupled to an LED. Each LED may light the edge of a guide such that a refraction surface is illuminated. The controller may selectively illuminate the one or more light guides using the LEDs to indicate a level of activity of the user.