[Matrixbeast]

If I want to be technical, the first console I owned was a Gameboy Pocket.
While I had a variety of consoles in my hold, such as a PS1, N64, and so on, some were gifts for my brothers and I to share, while others (Notably the Xbox and GC) we bought by pooling our money together. So the GBPocket was the first console I owned that was indisputably mine.