Kindle E-reader – Amazon Official Site
Kindle 1: US$399 Kindle 2 : $359 Kindle DX : $489 Kindle Keyboard : $139.99 Kindle 4 : $79.99 Kindle 5 : $69.99 Kindle Touch : $99.99 Kindle Paperwhite (1st, 2nd & 3rd gen) : $119.99 Kindle 7, 8 : $79.99 Kindle Voyage : $199.99

Kindle 1: US$399
Kindle 2 : $359
Kindle DX : $489
Kindle Keyboard : $139.99
Kindle 4 : $79.99
Kindle 5 : $69.99
Kindle Touch : $99.99
Kindle Paperwhite (1st, 2nd & 3rd gen) : $119.99
Kindle 7, 8 : $79.99
Kindle Voyage : $199.99
Kindle Oasis : $289.99

Kindle firmware that utilizes Linux kernels 2.6.10 to 3.0 [1]
Kindle 1: 1.2
Kindle 2 : 2.5.8
Kindle DX : 2.5.8
Kindle Keyboard : 3.4.2
Kindle 4, 5 : 4.1.3
Kindle Touch : 5.3.7.3
Kindle Paperwhite (1st gen) : 5.6.1.1
Kindle Paperwhite (2nd & 3rd gen) : 5.9.2 [2]
Kindle 7, 8 : 5.9.2
Kindle Voyage : 5.9.2

Kindle 1 : Marvell Xscale PXA255 400  MHz , ARM9
Kindle 2, DX : Freescale i.MX31 532 MHz, ARM11
Kindle Keyboard : Freescale i.MX35 532 MHz, ARM11
Kindle 4, 5, Touch, Paperwhite (1st gen) : Freescale i.MX508 800 MHz
Kindle 7, Paperwhite (2nd & 3rd gen), Voyage, Oasis, 8 : Freescale i.MX6 SoloLite 1 GHz

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