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Barnes & Noble’s Nook Media subsidiary took aim at...

Barnes & Noble’s Nook Media subsidiary took aim at Amazon’s Kindle Paperwhite Wednesday with the release of the 6-inch Nook GlowLight, which the company announced at a price of $119 with “no annoying ads.” The 6-inch Kindle Paperwhite is available for $119 at Amazon with ads -- which Amazon calls “special offers” -- and $139 without. The newest Nook GlowLight e-reader, which began selling Wednesday, is 15 percent lighter than the Kindle Paperwhite, Barnes Nook Media said. The device is “built to last” with a silicon trim that’s said to provide “extra protection against falls.” At Amazon.com, some reviewers of the Nook Simple Touch with GlowLight complained of a fragile screen that cracked easily when dropped, with similar complaints noted by reviewers at bn.com. One Nook customer referred to a “tear showing up in the back of the screen allowing light to leach through when using the Glow Light.” The re-engineered display area of the new GlowLight device provides “extra durability” to make it easier to tote along, Nook Media said. The new Nook GlowLight can hold 2,000 books, up to 80 percent more content than the Kindle Paperwhite, according to literature. Nook Media is extending the comparison contest to its website, where it charts the differences between the two products. The chart shows the Nook GlowLight at 6.2 ounces versus 7.3 ounces for the Paperwhite with a disclaimer that “Actual size and weight vary by configuration and manufacturing process.” The chart gave both devices a battery life rating of 8 hours, also with a disclaimer: “With GlowLight on at the default brightness setting, a single charge will last over 1 month with wireless off based on ½ hour of daily reading and one page refresh per minute. A single charge lasts over two months with wireless off and GlowLight off based on ½ hour of daily reading time and one page refresh per minute. Battery life depends on device settings, usage, and many other factors. Battery tests conducted using specific units. Actual results may vary.” Nook Media’s Simple Touch with GlowLight is still being sold, for $99 at bn.com and $89 at Amazon, we found Wednesday.