The world’s first handheld console was released in 1979 by Milton Bradley, called the Microvision.
Microvision was designed by Jay Smith, designer of the Vectrex system. Despite the system’s initial success, it was gone from the market by 1981, due to the small selection of games and plethora of technical problems. Also, though it had a total of nine buttons with a different button configuration for each game, the button panel was delicate and could be damaged easily. To make things worse, the screen was really tiny, hence the name Microvision.