This color-tweaking is performed by adjusting the Oasis' new 25 LED backlights. This adjustability isn't due to the E Ink panel itself, which is still purely monochrome. Warmer light doesn't "look" as bright, but the reduced blue in the mix eases that strain, which is useful when you're staring directly at a device as your primary source of light. The cooler light can appear brighter and make the screen stand out in certain lighting situations, but it also tends to be harsher on the eyes, straining them (this is a common effect with overhead fluorescent lights and computer monitors). At the lowest setting it's a cool blue-gray, while at the highest setting it's a warm yellow-orange. Despite this, this screen can be much easier on your eyes thanks to the addition of an "adjustable warm light."Ī warmth slider, located under the brightness slider on the Oasis' pull-down menu, adjusts the color temperature of the screen. The display remains a 7-inch, 300ppi E Ink panel with a 16-level grayscale just like on the previous model. Of course, moisture can make touch screens perform awkwardly, so you might want to stick to the page-turning buttons when reading in the water, which is an advantage over the button-free Paperwhite. So you can take it to the beach, the pool, and even into the shower without worry. Like the previous model, the Oasis is rated IPX8, which means it can handle being submerged in up to two meters of water for an hour. While the Oasis has no headphone jack, you can connect Bluetooth headphones to listen to Audible audiobooks. One edge of the reader holds a micro USB port for charging and the other edge holds a power button, but these are the only asymmetrical aspects of the design. You can hold the Oasis by the grip in your left or right hand, and the screen will automatically rotate. The reader is almost perfectly vertically symmetrical, for ambidextrous use. This part of the reader is also where a third of the back thickens out to 0.3 inches, providing a slight grip on the otherwise remarkably slim frame the rest of the Oasis is just over a tenth of an inch thick. The wider border holds two rubber buttons for turning pages. Both colors feature an opposite face with a flush black border that frames the screen by a quarter of an inch on three sides and a full inch on the fourth side.
The Oasis is available in champagne gold or graphite versions, dictating the finish of the aluminum back panel.
It's a flat, tablet-like device that measures 6.3 by 5.6 by 0.3 inches (HWD), with a 7-inch touch-sensitive monochrome E Ink display. Physically, the 2019 Kindle Oasis is identical to the 2017 model.
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