Both play the same ~1,500 Game Boy Advance cartridges. Choose by priority:
| Feature | Game Boy Advance (AGB-001) | Game Boy Advance SP (AGS-001 / AGS-101) |
|---|---|---|
| Screen | 2.9" TFT, no backlight (front-light mod possible) | 2.9" TFT, front-lit (001) or backlit (101) |
| Form | Landscape, wide | Clamshell, pocketable, protects screen |
| Battery | 2× AA (15–20 hrs) | Rechargeable Li-ion (10–18 hrs 001, 8–14 hrs 101) |
| Comfort | Better for large hands | Cramped for adults; L/R buttons stiff |
| Link Cable | Standard top port | Requires adapter (SP link cable) |
| Price (2024 Loose) | $40–$70 | 001: $60–$90 | 101: $100–$160 |
| Modding | Easy IPS backlight kits ($40) | 101 already best screen; 001 → IPS mod popular |
All play Pokémon Emerald, Metroid Fusion, Advance Wars, Golden Sun identically.