PSP-1000 = Launch model (2004, Japan/US). PSP-1001 = North American model number for the same hardware. They are identical — the "1001" is just the region code suffix.
| Model | Series | Key Traits |
|---|---|---|
| PSP-1000 / 1001 / 1003 / 1004 | Fat (1st Gen) | 280g, 1800mAh, IR port, no video out, TA-079/081/082 mobo |
| PSP-2000 / 2001 | Slim & Light (2007) | 189g, 1200mAh, TV out (component), 64MB RAM, TA-085/088v1/v2/v3 |
| PSP-3000 / 3001 | Brite (2008) | Improved LCD (wider gamut, scanlines), mic built-in, same RAM |
| PSP-N1000 / N1001 | Go (2009) | Slide, 16GB flash, no UMD, BT, proprietary connector |
| PSP-E1000 / E1001 | Street (2011) | Budget, no Wi-Fi, mono speaker, matte, UMD only |
So: 1000 = 1001. The real choice is 1000 vs 2000 vs 3000 vs Go vs Street.