New Kindle Fire

The Kindle Fire was big news when announced last year as a multimedia tablet ready to battle with the kingpin iPad, and now Amazon's taking aim at the new iPad's retina display with the introduction of the Kindle Fire HD.

Available for preorder today, Amazon revealed four new Kindle Fire models:

• Kindle Fire HD 7" (16GB $199 & 32GB $249; ships Sept. 14)
• Kindle Fire HD 8.9" (16GB $299 & 32GB $369; ships Nov. 20)
• Kindle Fire HD 8.9" 4G LTE Wireless (32GB $499 & 64GB $599; ships Nov. 20)
• Next-Gen Kindle Fire (8GB $159; ships Sept. 14)

Read on for details of Amazon's latest Kindle Fire tablet line and why the company's calling them its "most-advanced tablets" yet. After taking a look at the Kindle Fire HD's new features, do you plan on buying it?