10.3 ounces 7.5" x 5.3" x 0.7" 6" diagonal electronic paper The Kindle is a proprietary e-book reader and web browser, all in one. For complete details, go to Amazon.com and click on the Kindle link. The Kindle uses a wireless infrastructure (Sprint network) to access Amazonís web site where you can download digital books, magazines, and newspapers. You can also listen to MP3 files and audio books on the Kindle. You donít need a WiFi account with any carrier to use a Kindle. The network comes with the device.