Yes, all models come with WiFi.
The original model and DS Lite include the ability to play GBA games as well, whereas the DSi and DSi XL don't have that feature, but boast a number of other things including a larger screen.
Your call.
The original model and DS Lite include the ability to play GBA games as well, whereas the DSi and DSi XL don't have that feature, but boast a number of other things including a larger screen.
Your call.