The new Kindle Paperwhite has a built-in light, up to 8-weeks of battery life, touch screen, 62% more pixels, and 25% better contrast. Kindle Paperwhite is a great choice if you already have a high-speed internet connection and wireless router set up in your home. If you do not have Wi-Fi set up at home, Kindle Paperwhite 3G may be a better option - 3G connectivity lets you download books anytime, anywhere. Kindle Paperwhite 3G is the easiest option because there is no wireless setup - you are ready to shop, purchase, and read right out of the box. Built-in free 3G connectivity uses the same wireless signals that cell phones use, but there are no monthly fees or commitments - Amazon pays for Kindle Paperwhite 3G wireless connectivity. The added convenience of 3G enables you to download books anytime, anywhere, without having to find a Wi-Fi hotspot connection. Your Kindle may use wireless connectivity to make other services available, such as wireless delivery of personal documents, which may require an additional charge. The Paperwhite display offers 62% more pixels, and renders exceptionally sharp, clear text and images. Paperwhite guides light towards the display from above instead of projecting it out at your eyes like back-lit displays, thereby reducing screen fatigue. You can adjust your screen's brightness to create a perfect reading experience in all lighting conditions, from bright sunlight to bedtime reading. A single charge lasts up to eight weeks, based on a half hour of reading per day with wireless off and the light setting at 10. The breakthrough power management technology allows you to leave the light on at all times for the best possible contrast without sacrificing battery life. The Kindle Paperwhite has a matte screen that reflects light like ordinary paper so you can read as easily in bright sunlight as in your living room with no glare.