A camera device and a camera system that enable easy detection of a direction of a camera mounted on a finger are provided. A fingertip camera device (20) includes: a camera unit (21) mounted on a finger; a myoelectric information obtainment unit (42) configured to obtain myoelectric information on a palm; a camera direction detection unit (46) configured to detect, based on the myoelectric information obtained, a direction of the camera unit (21) relative to a predetermined reference direction; and an output unit (52) configured to add information on the direction of the camera unit (21) obtained from the camera direction detection unit (46) to imaging information captured by the camera unit (21), and output the resulting information.