SEGA consoles

Real
Sega SG-1000 (1982-1986)

Master System (1986-1988)

Sega Genesis (1988-1995)

Sega Saturn (1995-1998)

Dreamcast (1999-2001) (Fictionally 2006)

Fictional
Sega 5S (2006-2013)

Sega Ultrapower (2013-2020)

Sega 2020 (2020-present)