Amazon has updated its Kindle line of devices with five new tablets and two new e-readers. The new devices, which were demoed at an event in New York, are now available for pre-order on the company's website, and will ship sometime next month. Here's a quick breakdown of what's new:

Kindle Fire HDX: Amazon has refreshed the Fire HDX tablet with a sharper 8.9-inch display, a faster 2.5 GHz Snapdragon 805 processor from Qualcomm, a better sound system (Dolby surround-sound speakers), and faster Wi-Fi.

The device also includes a new Dynamic Light Control feature which automatically adjusts the brightness of the display as lighting conditions change. The HDX is priced at $379 or $479 for the Wi-Fi or 4G models.

Kindle Fire HD 6 and 7: The refreshed Fire HD tablet is now available in two sizes: a 6-inch screen and a 7-inch screen, and five different colors. While the former is priced at $99, the latter will set you back $139.

Both the Fire HD and HDX tablets will run the new Fire OS 4, which is based on Android 4.4 KitKat.

Fire HD for kids: The e-commerce giant isn't just going after grown-ups; the company has also unveiled the Kindle Fire HD Kids Edition, which as the name suggests, is aimed at children and includes a shockproof rubber case that'll help protect the device against damage.

The 6-inch and 7-inch "Kids Edition" options are priced at $149 and $189, respectively, and come with a guarantee that if your kid breaks the tablet, Amazon will replace it for you. The offer is good for two years after purchase. In addition, the company is also offering a year's worth of unlimited access to FreeTime – its hand-curated selection of kid-safe apps, books, and videos.

Two new e-readers: In addition to tablets, Amazon has also updated its Kindle line of e-readers with the new Kindle Voyage and Kindle, priced at $199 and $79, respectively.

The Kindle Voyage is the next generation of the Kindle Paperwhite, as it is thinner, lighter, and smaller than the latter. It features a 7.6mm thin magnesium body, weighs in at 6.4 ounces, and has a pixel density of 300 pixels per inch. The device also includes a PagePress feature, which lets readers turn pages by squeezing the bezel of their screen.

Lastly, the new low-end 'Kindle' e-reader features a new, easy-to-navigate touch interface, twice the storage of its predecessor and a faster processor.