Kindle Fire HDX vs Kindle Fire HD vs Google Nexus 7 vs Samsung Tab

Amazon has announced new Kindle Fire tablets for the US, bringing you all the goodness of Amazon in a glossy new device. It's going under the name Kindle Fire HDX, with that X, you guessed it, meaning it's packing in more pixels on that display.

At the same time, Amazon has updated the 7-inch Kindle Fire HD for 2013, while the 8.9-inch Fire HD launched earlier in the year remains untouched.

In this array of Kindle Fire HDs and HDXs, some new, some not, what's the real difference? With this latest update, what is Amazon changing and should you hold fire, or charge right in?
The new Kindles have only been announced for the US at the moment, but we expect them to come to the UK shortly.