Wearable tactical electronic systems for use by military personnel, law enforcement, and security officers, namely, smart helmets, smartwatches, wrist displays, heads-up displays, helmet-mounted and torso-mounted computing modules; Body-worn devices incorporating embedded hardware and software for data, audio, and video processing and for generating display outputs, including augmented reality and extended reality visualizations; Integrated power supply and power management components sold as part of a smart wearable computing system; Downloadable and embedded software and firmware for system configuration, tactical data integration, and display generation; Communication modules for wireless and physical network connectivity enabling integration with night vision goggles, cloud-based platforms, and LAN/WAN networks; Accessory interface hardware sold as part of smart systems, namely, rails, mounts, cables, keypads, and sensor input/output modules; Computer hardware and computer application software for smart helmets; Computer haptic systems, namely, haptic interfaces, haptic interface devices, and haptic displays for providing haptic feedback and tactile feedback, for military devices and systems for use by military personnel, law enforcement, and security officers.