Quite different from the Kindle Fire in terms of the underlying hardware components, the Kindle Fire HD is powered by the 1.5GHz OMAP 4460 processor from Texas Instruments. The source of power for the tablet is a large 4400maH, 16.43Wh lithium-ion battery that gives it a full 11 hours of usage time.
Some of the other components of the Fire HD are Samsung eMMC 16 GB Flash Memory and Flash Memory Controller, Elpida 1 GB DDR2 RAM, Broadcom Multifunction Monolithic IC with GPS and GLONASS AGPS, Bluetooth 4.0, and FM Receiver/Transmitter. The audio is quite good with as Amazon has managed to get “exclusive, custom Dolby audio, dual-driver stereo speakers” thus providing a “clear, crisp, balanced audio” experience.
According to iFixit, DIYers shouldn’t find it too difficult to swap out battery or display on their own thus saving them to mail the device off to Amazon for repair.
Find full teardown from iFixit here.