8. Amazon Kindle Fire HD
Amazon stepped up its tablet game this year with the second generation of the Kindle Fire, which contains a key feature. The Kindle Fire HD now has an 8.9-inch high-definition display with a 1,920-x-1,200 resolution. The device also comes with dual stereo speakers instead of just one, as well as two Wi-Fi antennas for improved wireless performance. And last but not least, the Kindle Fire HD also adds Bluetooth connectivity. Like the original Kindle Fire, the HD version runs a heavily modified version of Android -- but while the first model ran Android 2.3, the second generation gets a big boost with Android 4.0.