• Display : Amazon's 6" display with Pearl e-paper technology, 167 ppi, optimized font technology, 16-level gray scale
• Size : 6.7" x 4.7" x 0.40" (169 mm x 119 mm x 10.2 mm) 
• Weight : 6.7 ounces (191 grams)
• System Requirements : None; fully wireless and doesn't require a computer to download

• Display : Amazon's 6" display with Pearl e-paper technology, 167 ppi, optimized font technology, 16-level gray scale
• Size : 6.7" x 4.7" x 0.40" (169 mm x 119 mm x 10.2 mm) 
• Weight : 6.7 ounces (191 grams)
• System Requirements : None; fully wireless and doesn't require a computer to download content 
• On-Device Storage : 4 GB; holds thousands of books
• Cloud Storage : Free cloud storage for all Amazon content
• Battery Life : A single charge lasts up to four weeks, based on a half hour of reading per day with wireless off. Battery life will vary based on  : wireless usage
• Charge Time : Fully charges in approximately 4 hours from a computer via USB cable
• Wi-Fi Connectivity : Supports 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)