Nintendo Wii U Gamepad has a pixel density of:
158.01

A.K.A. WiiU, Wii U Controller
Released: 2012

Resolution: 854×480 6.2″ display

(FWVGA) 854×480, 16:9 aspect ratio

Totaling 0.41mp (megapixels) and having a PPI of 158.01

Category: Other
Tags: nintendo, wii u, wii, resistive, touch

Wii U GamePad

Illustration of the Wii U GamePad
Developer	Nintendo
Type	Gamepad
Display	6.2 inch (15.7 cm) 854×480 (FWVGA) 16:9 @ 158 ppi
Sound	Stereo speakers, Headphones
Input	Motion sensing Touchscreen 2 Analog sticks D-pad Digital buttons Microphone Gyroscope Accelerometer Magnetometer Extension Connector
Camera	1.3 MP Front-facing camera
Touchpad	Single-touch LCD display
Connectivity	Proprietary wireless based on IEEE 802.11n,[1] NFC, Infrared
Power	LiPo 3.7 V DC 1500 mAh (WUP-012; 3-5 hours use) LiPo 3.6 V DC 2550 mAh (upgrade WUP-013; 8 hours use)
Dimensions	5.3 in × 0.9 in × 10.2 in (13.5 cm × 2.3 cm × 25.9 cm)
Mass	491 g
Predecessor	Wii Remote Plus
Successor	Joy-Con

This righthand infobox courtesy of Wikipedia.