An electronic device, comprising: a band configured to be worn on the head of a user, the band including a central portion and first and second temple portions (440A, 440B) extending from opposing sides of the central portion, the central portion being configured to contact a user's brow and the temple portions (440A, 440B) being configured to contact portions of the head of the user near the user's ears, wherein the band is configured flexibly to curve inward along the central portion to contact the user's brow; wherein the band includes a resiliently flexible structural shell that at least partially surrounds a pliable inner member-and the structural shell is disposed on a side of the band opposite an inner surface of the pliable inner member; and an operational unit including: a display element; a housing having an arm portion affixed to the first temple portion of the band and defining a longitudinal axis, the housing also including an elbow portion defining a display end of the housing and supporting the display element such that the display element extends along a display axis that is angled with respect to the longitudinal axis and such that the display element is positionable over an eye of the user; and an image generating device disposed within the housing and configured for generating an image presentable to the user on the display element, wherein the display element is a generally transparent prism and is configured to overlay the image presentable to the user with a surrounding environment. a band configured to be worn on the head of a user, the band including a central portion and first and second temple portions (440A, 440B) extending from opposing sides of the central portion, the central portion being configured to contact a user's brow and the temple portions (440A, 440B) being configured to contact portions of the head of the user near the user's ears, wherein the band is configured flexibly to curve inward along the central portion to contact the user's brow; wherein the band includes a resiliently flexible structural shell that at least partially surrounds a pliable inner member-and the structural shell is disposed on a side of the band opposite an inner surface of the pliable inner member; and an operational unit including: a display element; a housing having an arm portion affixed to the first temple portion of the band and defining a longitudinal axis, the housing also including an elbow portion defining a display end of the housing and supporting the display element such that the display element extends along a display axis that is angled with respect to the longitudinal axis and such that the display element is positionable over an eye of the user; and an image generating device disposed within the housing and configured for generating an image presentable to the user on the display element, a display element; a housing having an arm portion affixed to the first temple portion of the band and defining a longitudinal axis, the housing also including an elbow portion defining a display end of the housing and supporting the display element such that the display element extends along a display axis that is angled with respect to the longitudinal axis and such that the display element is positionable over an eye of the user; and an image generating device disposed within the housing and configured for generating an image presentable to the user on the display element, wherein the display element is a generally transparent prism and is configured to overlay the image presentable to the user with a surrounding environment.