Fuente: Wipo "Sensorization" A head-mountable display device comprising a housing 14.1-102, an optical module secured to the housing. A facial interface connected to the housing. A strap 14.1-120 connected to the housing and electrically connected to the optical module. The strap defines a volume and includesa processor disposed in the volume. A securement band 14.1-123 is connected to the strap. Also claimed is a wearable electronic device with two optical modules and two electronic straps. Also claimed is a head mountable display with a power connector 14.1-126 located on the first strap. The optical modules may move using a motor and the straps may include speakers.