Samsung Galaxy Tab Pro 10.1 has a pixel density of:
298.90

A.K.A.
Released: 2014

Resolution: 2560×1600 10.1″ display

Wide QXGA (WQXGA) 2560×1600, 8:5 aspect ratio

Totaling 4.10mp (megapixels) and having a PPI of 298.90

Category: Tablet
Tags: android

Samsung Galaxy Tab Pro 10.1

Also known as	SM-T520 (Wifi) SM-T525 (LTE, 3G & Wifi)
Developer	Samsung
Product family	Galaxy Tab
Type	Tablet, media player, PC
Release date	February 2014
Media	MP4, MP3, WMA, MPEG, 3GP, AAF, GIF, ASF, DAT, M4V, SVI, FLA, FLR, WRAP, PPG, Ogg, WMV
Operating system	Android 4.4 KitKat with TouchWiz Nature UX
System-on-chip used	Samsung Exynos 5420 (Wi-Fi model) or Snapdragon 800 (4G/LTE model)[1]
CPU	1.9 GHz octa-core (1.9 GHz quad-core ARM Cortex-A15 and 1.3 GHz quad-core ARM Cortex-A7) (Wi-Fi model) or 2.3 GHz quad-core Krait (ARMv7-compatible) (4G/LTE model)[1]
Memory	2 GB RAM
Storage	16/32 GB flash memory, microSDXC slot (up to 64 GB)
Display	2560×1600 pentile px, 299 ppi, 10.1 in (26 cm) diagonal, WQXGA TFT display
Graphics	ARM Mali-T628MP6 (Wi-Fi model) or Adreno 330 (4G/LTE model)
Input	Multi-touch screen, digital compass, proximity, gyroscope, accelerometer and ambient light sensors[2]
Camera	8 MP rear facing, 2 MP front facing
Connectivity	LTE 150 Mbps DL, 50 Mbps UL Hexa Band 800/850/900/1800/2100/2600 (4G & LTE model) HSPA+ 42/5.76 Mbit/s 850/900/1900/2100 (4G & LTE model) HSPA+ 21 Mbit/s 850/900/1900/2100 MHz (3G & Wi-Fi model) Wi-Fi 802.11a/b/g/n/ac (2.4 & 5 GHz), Bluetooth 4.0, HDMI (external cable), GPS
Power	8,220 mAh (43,6 Wh) Li-Ion battery
Dimensions	243.1 mm (9.57 in) H 171.4 mm (6.75 in) W 7.3 mm (0.29 in) D
Mass	477 g (1.052 lb)
Related articles	Samsung Galaxy Tab 3 10.1 Samsung Galaxy Note Pro 12.2 Samsung Galaxy Tab Pro 12.2 Samsung Galaxy Tab Pro 8.4
Website	www.samsung.com/global/microsite/galaxypro/

This righthand infobox courtesy of Wikipedia.