The Kindle DX is the big brother to the normal Kindle. The DX is outfitted with a 9.7-inch screen. If you've got the money and want more screen real estate for reading ebooks, then this is the one you want.
It's as thin as a magazine at just over 1/3 an inch. Read PDFs, ebooks, blogs, and web sites with included U.S. Wireless. Interestingly, this Kindle only has U.S. Wireless included, not global wireless like the base Kindle model.
Rotate the Kindle and the screen transforms into landscape mode for better viewing of graphs, maps, web pages, or tables.
There's also no computer required to use a Kindle. It's completely wireless and ready to use out of the box. Battery life can extend into weeks with wireless turned off.