HT Games
| Feature | DS / DS Lite | DSi | 3DS |
|---|---|---|---|
| 3D Display | No | No | Yes – glasses-free (parallax barrier), adjustable depth slider |
| CPU | ARM9 (67 MHz) + ARM7 (33 MHz) | ARM9 (133 MHz) + ARM7 | ARM11 MPCore (268 MHz dual) + ARM9 (legacy) |
| RAM | 4 MB | 16 MB | 128 MB (FCRAM) + 6 MB VRAM |
| Cameras | None | 2× 0.3 MP (VGA) | 2× 0.3 MP (outer) + 1× 0.3 MP (inner, 3D) |
| Storage | Cartridge only | 256 MB NAND + SD slot | 1–2 GB NAND + SD/SDHC slot |
| Connectivity | NiFi (local only) | 802.11b/g (Wi-Fi) | 802.11b/g + IR (StreetPass/SpotPass) |
| Shop | None | DSiWare | eShop (DSiWare + 3DSWare + VC) |
| Backward Compatibility | GBA (DS/DS Lite only) | DS carts only | DS / DSiWare (no GBA slot) |
| StreetPass / SpotPass | No | No | Yes – background data exchange |
| Miiverse / Friends | No | No | Yes (discontinued 2017) |
| Form Factor | Clamshell | Clamshell (slimmer) | Clamshell (wider, 3D screen) |
3DS is a generational leap; DS/DSi/DSi games run in "DS Mode" (downclocked, single core).