Phone / Tablet / Laptop / E-Reader / Desktop LCD / HDTV

Barnes and Noble Nook Color has a pixel density of:

A.K.A. Nook Color Tablet
Released: 2010

Resolution: 1024×600 7″ display

Totaling 0.61mp (megapixels) and having a PPI of 169.55

Category: E-Reader

Barnes & Noble Nook Color
Nook Color Showing Wikipedia Index On Dolphin Browser HD.jpgA Wikipedia page on the home screen of the Nook Color
Manufacturer Barnes & Noble
Release date 16 November 2010 (2010-11-16) (Wi-Fi only)
Introductory price US$249; US$139 (current)
Operating system Android 2.2 Froyo custom (software update – ver 1.4.3 [06/20/2012])
CPU 800 MHz ARM Cortex-A8-based TI OMAP3621[1]
Memory 512 MB
Storage 8 GB internal
32 GB max via microSD
Display 7-inch 1024 x 600 px WSVGA IPS LCD at 170 ppi
Graphics PowerVR SGX 530
Input Capacitive multitouch screen with side volume, Nook Home, and power button
Connectivity Wi-Fi 802.11 b/g/n, USB, Bluetooth(Disabled on stock firmware)
Power Installed battery 3.7 v  4000 mAh (8 hours with Wi-Fi off)
Dimensions 8.1 in (210 mm) H
5.0 in (130 mm) W
0.48 in (12 mm) D
Mass 15.8 oz (450 g)
Successor Nook Tablet
Website Official website

This righthand infobox courtesy of Wikipedia.