The Armatix iP1 will not fire a single of its .22 caliber rounds unless its companion iW1 Active RFID Watch is in range, the gun will remain locked and won’t fire. The built-in RFID chip measures proximity, and when it senses the smartwatch, a green light on the grip pops up indicating that the gun, an Armatix iP1, has been automatically unlocked and can now be fired. RFID-enabled guns don’t come cheap. It’s $1,400 for the gun and yet another $400 for the watch. Official Website

Armatix Gun Armatix Target Armatix Watch Armatix-s-Smart-Gun-Won--t-Fire-If-Its-Smartwatch-Isn--t-In