Presumably, The Pip-Boy 1.0 marked the first known attempt by any company to create a wearable portable computer and was built as a proof-of-concept of a wearable personal computer. The only observed unit of the device featured a highly cumbersome design with a small screen and no protective outer casing. Due to its crude look and unprotected circuitry, it is very likely that it was merely a prototype that was never distributed. It was eventually rendered obsolete by subsequent, more advanced Pip-Boy models that streamlined the design and allowed for additional functions.
The Pip-Boy 1.0 featured a small display screen, a 16-button keyboard, a toggle switch, multiple indicator lights, and a dial with at least three settings. It was unknown what functions it could perform. The components that made up the device were attached to a rudimentary metallic frame that surrounded a forearm-length cuff. Protruding cords and the overall bulkiness of the device may have precluded the addition of a protective outer casing as is found on newer Pip-Boy models.