If you've been curious why the screen on your Kindle Fire HDX has a blueish tint around the edges, wonder no more. To help achieve the HDX's vaunted color accuracy, Amazon used blue LEDs to light the display, which is why you see an azure hue peeking out around the screen's sides on books and web sites. The shopping giant further explains that this lighting technique increases battery life by 20 percent too. The "we want you to know" heading on the HDX's product page has the full details, and our video review is a click away if you're still on the fence about buying one.
Amazon Kindle Fire HDX 7-inch