HD4000 Enterprise Head-Mounted Display Improve productivity and task accuracy with hands-free directed-action workflows Display Characteristics Display Full color OLED 640 x 400 pixels Field of View 20.3° diagonal Eye Box 7.5 mm x 9 mm Eye Relief 18 mm Brightness 300 cd/m2 Sensor Characteristics Camera 5 MP, fixed focus Head Tracker 9-axis integrated sensor Audio Integrated microphone System Characteristics Connectivity USB 2.0 Host Device Connectivity Android (5.0 and higher) and Windows 10 Frame ESS Crosshair ONE Frame (ANSI Z87.1 ) Physical Characteristics Weight (without cable) <1.06 oz./<30g Rugged Characteristics Sealing IP67 (waterproof and dustproof) Drop Specification 5 ft./1.5 m (to concrete) Operating Temperature -4° F to 122° F -20° C to 50° C