After 10 years of Kindles, Amazon has finally made a kindle e-reader with an IPX8 waterproof rating. The new Kindle Oasis features a 7-inch display and aluminum back. The Verge reports: Unlike last year's Kindle Oasis, which used a magnetic case you attached to the e-reader to extend its battery life, the new Oasis relies entirely on its built-in battery. It has a similar physical design, with one thicker side that tapers down on the other side, for one-handed reading. But Amazon has made a point of saying that it managed to fit in a bigger battery, while keeping the tapered side of the device at 3.4 millimeters. The resolution of the e-paper display is the same at 300 ppi, but it has a couple extra LED lights now for a brighter, more even-looking display. And it also has ambient light sensors that adjust the brightness as you move from room to room, or from outdoors to indoors. There are physical page-turn buttons, plus the touchscreen page-turn option; Amazon says it's worked on both the hardware and software side of things to make page-turning feel faster. The new e-reader has been tested in two meters of water for up to 60 minutes. It's also been tested in different water environments, like hot tubs, pools, and bubble baths.