Need a new ereader for your summer vacation? Amazon just introduced a new Kindle Oasis you might want to consider.

Starting $249.99 for the 8GB version with special offers (aka ads on the lockscreen), the new Kindle Oasis is pretty steep for an ebook reader. But the previous generation is a PCMag Editors' Choice product, and this new model promises to be even better, offering with an extra perk designed for nighttime reading.

Like the previous generation, which is now marked down to $199.99, the new model features a 7-inch display, is waterproof, and comes with Audible built-in. The display now features a "color adjustable front light" so you can "customize the color tone from cool to warm to easily transition from daytime to a comfortable nighttime reading experience," Amazon says. You can also schedule the screen warmth to automatically adjust with the sunrise and sunset.

Its "thin and light ergonomic design" and dedicated page-turn buttons make it perfect for one-handed reading, Amazon says. Running out of battery shouldn't be a common problem; it promises to allow for "weeks" of reading on a single charge.

If you like to read in the bath, hot tub, or by the pool, the new Kindle Oasis is a good option. It's IPX8-rated, meaning it can withstand immersion in up to 6.5 feet of fresh water for up to an hour.

The new Kindle Oasis is available for pre-order now in graphite and champagne gold color options; it's slated to begin shipping on July 24. For a limited time, those who order it will get six months of Kindle Unlimited for free. Normally $9.99 per month, Kindle Unlimited offers access to more than one million ebooks plus magazines and Audible audiobooks.

PCMag will have a full review of the new Kindle Oasis in the near future.

Amazon is also selling covers for the new Kindle Oasis that open like a book, automatically wake the device when opened, and put it to sleep when closed. There are several different options, including water-safe fabric covers in blue, red, and charcoal for $39.99; leather covers in black and merlot for $49.99; or a "premium leather cover" for $64.99.

This article originally appeared on PCMag.com.