Amazon Kindle Paperwhite 2015 - 6" 

Highest resolution e-reader display
New—With twice as many pixels as the previous generation, the all-new Kindle Paperwhite has an improved high-resolution 300 ppi display for crisp, laser quality text. No other e-reader offers a higher resolution display

No glare in bright sunlight
Unlike reflective tablet and smartphone screens, Kindle Paperwhite reads like paper. 

Read comfortably with one hand
Lighter than a paperback, comfortably hold Kindle Paperwhite in one hand for those times when you can’t put the book down.

Charge monthly, not daily
Kindle Paperwhite won't leave you tethered to an outlet. A single charge can last up to six weeks (based on a half hour of reading per day with wireless turned off and the light setting at ten).

Won't tire your eyes in the dark
Kindle Paperwhite guides light toward the surface of the display with its built-in front light—unlike back-lit tablets that shine in your eyes—so you can read comfortably for hours without eyestrain. Adjust your screen's brightness for great reading in any light.

Technical specifications

Display: Amazon’s 6" Paperwhite display technology with E Ink Carta™ and built-in light, 300 ppi, optimized font technology, 16-level gray scale

Size: 6.7" x 4.6" x 0.36" (169 mm x 117 mm x 9.1 mm)

Weight: Wi-Fi: 7.2 ounces (205 grams)
Actual size and weight may vary by configuration and manufacturing process

System Requirements: None; fully wireless and doesn't require a computer to download content

On-Device: Storage4 GB; holds thousands of books

Cloud Storage: Free cloud storage for all Amazon content

Battery Life: A single charge lasts up to six weeks, based on a half hour of reading per day with wireless off and the light setting at 10. 

Charge Time: Fully charges in approximately 4 hours from a computer via USB cable
Wi-Fi ConnectivitySupports public and private Wi-Fi networks or hotspots that use the 802.11b, 802.11g, or 802.11n standard with support for WEP, WPA and WPA2 security using password authentication or Wi-Fi Protected Setup (WPS)

Content Formats Supported: Kindle Format 8 (AZW3), Kindle (AZW), TXT, PDF, unprotected MOBI, PRC natively; HTML, DOC, DOCX, JPEG, GIF, PNG, BMP through conversion

DocumentationQuick Start Guide (included in box); Kindle Paperwhite User Guide (pre-installed on device) [PDF]. Additional information in multiple languages available online

Included in the Box:Kindle Paperwhite, USB 2.0 charging cable and Quick Start Guide