It features up to three weeks battery life in watch / activity tracking mode or up to 10 hours using GPS. (ecoustics.com)
Here's a short list of Kindle 3 features that illustrates why Kindle was threatening to leave Nook and Sony Reader behind permanently — 4 weeks battery life with wireless off, faster page turns, Voice Guide, WiFi (Kindle 3 has both WiFi and 3G), free Internet with Kindle 3, better browser, more compact and lighter Kindle, low $ 139 and $ 189 prices. (dealsagar.com)
Sony claims a two - week battery life for both of its upcoming e-book readers, a number on the par with Amazon's claims for the Kindle 2 and Kindle DX (with wireless turned off). (computerworld.com)