DSi XL 4.2", 256×192 DS screen, SD-Slot, Stylus, 314g

The DSi LL (as it will be called in Japan) or XL (how it'll be referred to in Europe and North America) is a supersized version of the Nintendo DSi.

What is different about it?
The DSi XL will be almost an inch wider than the DSi, a bit thicker, and it will have two 4.25-inch screens (that's an inch larger than the DSi's screens and 93 percent larger than the screens of the older DS Lite). It will feature two different-sized styli: a traditional thin stylus and a large rounded one that takes the shape of a pen. The portable console will have a similar battery life to the DSi's, about 4 to 5 hours on maximum brightness and 13 to 17 hours on the minimum setting.

Except for the larger size and extra stylus, there doesn't seem to be any other major differences on the XL. Like the DSi, it does not have a Game Boy Advance port, so it can't play older GBA cartridges.