The best e-reader around is back with some significant upgrades. Amazon's top of the line Kindle option: the Oasis now lets you adjust the shade of the screen from white light to a warm amber that's perfect for reading at night. The new e-reader also gives you the option to schedule light changes and has an adaptive front light that auto adjusts based on lighting conditions. And just like the previous model, it's IPX8 waterproof and ready to handle beach and poolside reading without worrying about splashes or accidental dips. And the 7" 300ppi flush-front Paperwhite display is as portable as ever thanks to its lightweight anodized aluminum back, glass front cover, and available cellular networking. Available in 8GB and 32GB capacities.