The new kindle touch offers a much better contrast than its predecessor. amazon calls the new technology “paperwhite” and announces 25% better contrast in comparison to the previous e-ink-pearl technology. Besides that the resolution has been increased to 1024 x 768 pixels (212 dpi).
a completely new feature of the kindle touch “paperwhite” is the backlight. LEDs placed around the display distribute the light over the entire display by taking advantage of a diffusion film. This enables to read eBooks also in the dark. According to amazon the battery will still last up to 8 weeks even if the illumination is used. However, there was not given any more information under which conditions this was measured.
The kindle paperwhite will be available in US by 1 October 2012 for about 120 US Dollars. The 3G version will be 180 US Dollars. The kindle without touch will be available by 14 September 2012 and shall cost 70 US Dollars. In US there will be additionally a special variant which displays advertisements in stand by mode – this version will be 20 US Dollars less.