First I am going to talk about the size of the DSI. compared to a ds it is 74.9 mm high × 137 mm wide × 18.9 mm thick (when closed) which is about 12% thinner (2.6 mm) than the NDS Lite.
Now to the improvements about the Nintendo DSI.
- RAM: 16 MB of RAM (four times as much as previous models)
- Storage: 256 MB of internal flash memory with an SD/SDHC card expansion slot (up to 32 GB
- Wireless: internal wireless connectivity
- And it has a camera.
- And now there is a dsi shop where you can purchase points and buy games online.
Now to some bad things.
Nintendo removed the GBA slot so you can no longer play game boy games and guitar hero on it.
and it costs a whopping 200 dollars.
In my opinion is wouldn't buy the DSI because it looks like a waste of money. Its basically a Nintendo DS with a camera and internet.