The Kindle DX Graphite edition was the last 9.7 inch e-reader that Amazon
ever produced. The device was geared towards reading PDF Files with the large screen, but was no slouch either when it came to purchasing and reading eBooks. The big draws on the DX was the free 3G internet access that works in over 300 countries and the speakers to listen to audiobooks or take advantage of text to speech.
The Amazon Kindle DX has a 9.7 inch display screen with 1200 x 824 pixel resolution at 150 ppi, 16-level grayscale, 10:1 contrast ratio. There is a built in gyroscope and accelerometer and switches between landscape and portrait mode automatically.
Unlike most modern e-readers this does not have a touchscreen and instead is reliant on physical keys. There are left and right page turn buttons, home and settings menu. The D-Pad functions as your scrolling and navigation utility and clicking it is basically the OK button. One thing that Blackberry and old school users will like is the full QWERTY keyboard. It is much easier to write notes using this, then a software driven solution. The keyboard also has a number of quick launch keys. For example, if you click alt and the spacebar you will automatically play whatever audiobook or music file you were listening to last.
One of the great things about the DX is the inclusion of text to speech and the two speakers. Amazon, Barnes and Noble, Kobo and Sony have all abandoned audio in their last few generations of e-readers in order to cut down on manufacturing expenses and compete against each other on price alone. The DX was last e-reader from Amazon that had built in audio, and many people who have vision problems flock to this model.
There is only 4 GB of internal memory and no ability to increase it via the SD card. You want to make sure you always have room enough to buy the next great read from the Kindle bookstore.