How many PSP's are there?

Answer 1

There are four psp's, PSP-1000 (phat) that was the first one made, PSP 2000 (slim) was the second one made, PSP-3000 (brite) was the third one made, and the last one is the PSP Go (PSP-N1000) and these are all four psp's that were made.

Answer 2

The first PSP model is the PSP1000, this was updated over time, as the PSP2000 and PSP3000 series.

The PSP Go (PSP N1000) came next.

Later came the Street PSP (PSP E1000), which was a stripped down version of the 3000, with no wi-fi.

Lastly there is the PS Vita.