Samsung Galaxy Note 5 has a pixel density of:
515.30

A.K.A. Note 5
Released: 2015

Resolution: 2560×1440 5.7″ display

Quad HD (QHD) 2560×1440, 16:9 aspect ratio

Totaling mp (megapixels) and having a PPI of 515.30

Category: Phone
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Samsung Galaxy Note 5

Samsung Galaxy Note 5 in White
Codename	Project Noble[1]
Manufacturer	Samsung Electronics
Slogan	Your World Just Got Bigger[2]Next Is NowCapture Your Ideas FasterCapture Your Everyday Ideas
Series	Galaxy Note
Model	SM-N920x (Last letter varies by carrier & international models)
Availability by region	August 21, 2015; 3 years ago (2015-08-21)[3]
Predecessor	Samsung Galaxy Note 4 Samsung Galaxy Note Edge
Successor	Samsung Galaxy Note 7 Samsung Galaxy Note FE Samsung Galaxy Note 8
Related	Samsung Galaxy S6/S6 Edge
Type	Phablet
Form factor	Slate
Dimensions	153.2 mm (6.03 in) H76.1 mm (3.00 in) W7.6 mm (0.30 in) D
Mass	171 g (6.0 oz)
Operating system	Original: Android 5.1.1 “Lollipop”First major update: Android 6.0.1 “Marshmallow”Current: Android 7.0 “Nougat” with Touchwiz Grace UX or Samsung Experience 8.0
System on chip	Exynos 7 Octa 7420
CPU	Octa-core 64-bit 14 nm• Quad-core 2.1 GHz Cortex-A57• Quad-core 1.5 GHz Cortex-A53
GPU	Mali-T760 MP8
Memory	4 GB LPDDR4
Storage	32, 64, or 128 GB UFS 2.0[4]
Battery	Li-Ion 3000 mAh[5]
Data inputs	List Multi-touch touch screen 3 push buttons Headset controls Proximity sensor Ambient light sensors 3-axis gyroscope Magnetometer Accelerometer Barometer Hall effect sensor Gesture sensor aGPS GLONASS RGB light sensor S Pen (stylus/pen) Fingerprint sensor
Display	5.7 inch (145 mm) Quad HD Super AMOLED (16:9 aspect ratio) 2560×1440 pixel resolution, ~515 ppi[6]
Rear camera	16 megapixel Samsung ISOCELL S5K2P2[7] or Sony Exmor RS IMX240,[8] f/1.9, 2160p@30 Hz, 1080p@60 Hz, 720p@120 Hz, auto HDR, optical image stabilization, video stabilization, phase detection autofocus, tracking autofocus, manual focus, LED flash
Front camera	5 MP, 1440p@30 Hz, dual video call, auto HDR
Sound	Dolby Digital Sound 2.0

This righthand infobox courtesy of Wikipedia.