The Kindle Fire HD will also be available in a 7-inch model and the tablets will have storage starting at 16GB, said Jeff Bezos, CEO of Amazon, during an event in Santa Monica, California.

The 8.9-inch Kindle HD tablet will be priced at US$299 for 16GB of storage, and will be available on Nov. 20. The 7-inch Kindle Fire HD model will be priced at $199 and ship on Sept. 14.

The Kindle Fire HD 4G LTE wireless with 32GB of storage will be available for $499, and also ship on Nov. 20. A $49.99 annual data plan provides 250MB of data transfers per month and 20GB of storage in the cloud. The company did not clarify the screen size of the Kindle Fire HD LTE model.

The new Kindle Fire HD devices bring new features, including a larger screen, more storage and mobile broadband capabilities, compared to the original Kindle Fire, which was announced in September last year with a 7-inch screen. The new devices have a faster processor and a front-facing camera, which was not available in the original Kindle Fire.

The 8.9-inch Kindle Fire HD is 8.8 millimeters thick and will weigh 566 grams. It runs on a Texas Instruments OMAP4470 dual-core ARM processor, which is based on the Cortex-A9 design. The device operates on a dual Wi-Fi range, giving it faster wireless networking than Google's Nexus 7 tablet, according to Bezos.