tech specs(TECHnical SPECificationS) The technical details of an electronic device. Computer and mobile device tech specs include the size and weight of the unit, operating system, processor type and speed, amount and type of RAM and storage as well as the type of display technology, screen size and number of pixels. Input/output ports are also provided. For mobile devices, cellular, battery, camera, fingerprint reader and sensor specs are published along with the kinds of built-in apps. There are often vendor-specific details that may only appear on one product.