The answer to this is that Yes, its an Android tablet as it uses Android OS.
The latest version I.e Kindle Fire HDX uses the Android Jelly bean 4.x which is highly customized by Amazon. Now the question that arises is that how it is differet? Then the answer is that instead of using the Google Play store, Kindle Fire HDX uses the Amazon app store.
The amazon app store has most of the popular apps I.e Candy crush saga, facebook, netflix, pandora, Hulu, angry birds, Temple run 2, subway surfers, gmail, angry birds star wars, 4 pics 1 word etc.
Review on Kindle Fire HDX, from an actual user of iPod and Kindle Fire HDX (compared to iPad Mini):
You would be able to find most of the apps on it but in case you aren’t able to find, you do have the option of side-loading, where you can side-load most of the apps from other sources.
Perks of getting the Kindle Fire HDX:
- Dual WiFi antenna which allows you to stream faster and get signal in most of the places where other devices might fail
- Digital Dolby speakers to give the booming sound quality without having to use headphones/earphone
- 1920*1200 HD display @ 323PPI 7″ screen
- Quad core processor and 2Gb RAM
The bad side is that you might not be able to find few apps even for side-loading and the Amazon app store has around 100k apps whereas the other famous app stores like Apple and Google Play store have over 700 and 900k apps respectively, giving them a huge advantage in variety.
The heavily customized version of android Jelly bean 4.2 is nothing like the original version though.