Amazon's latest e-reader is Kindle Oasis - the eighth generation of Kindle - crafted from the ground up for readers, with a very thin and light design, plus an included charging cover that delivers months of battery life. At $289, the device costs more than three times as much as the most affordable Kindle available today. The new model features a protective case that doubles as an extra battery, providing as much as nine months of reading without a charge.

The new Kindle Oasis weighs just 4.6 ounces and is just 3.4 mm at its thinnest point - 30% thinner on average and over 20% lighter than any other Kindle.

Featuring a newshape, Kindle Oasis shifts the center of gravity to your palm, to rest in your hand like the spine of a book so that the device feels balanced for one-handed reading. You can turn the page with either the touch display or physical buttons. Oasis has also a built-in accelerometer that detects whether you are reading with your left or right hand, and automatically rotates the page and page turn buttons to match.

Kindle Oasis introduces a new dual-battery system - as soon as you connect the cover to Kindle Oasis, the battery in the cover begins recharging Kindle Oasis automatically. The battery in the cover uses a custom cell architecture that optimizes power and energy while keeping a small and light form factor and delivering months of battery life. You can charge the device and cover simultaneously while both are snapped together and plugged in. Plus, a new hibernation mode minimizes power consumption when your Kindle is inactive.

The included charging cover is made of leather and is available in black, merlot, or walnut. The cover opens like a book and fits around the bezel, waking Kindle Oasis when opened and putting it to sleep when closed. Twelve magnets form a secure attachment between the device and cover.

Kindle Oasis features a 300 ppi Paperwhite display. A redesigned built-in front light features 60% more LEDs and leverages new cylindrical diffractive patterns to increase the consistency and range of screen brightness for improved reading in all types of lighting.