Google Pixel XL has a pixel density of:
534.04

A.K.A. HTC Google Pixel XL
Released: 2016

Resolution: 2560×1440 5.5″ display

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

Totaling 3.69mp (megapixels) and having a PPI of 534.04

Category: Phone
Tags: android, pixel, htc, 1440p

Google Pixel

Developer	Google LLC
Manufacturer	Google, various
Type	Smartphones, tablets, laptops
Release date	February 21, 2013; 7 years ago (2013-02-21)
Operating system	Chrome OS and Android
Online services	Google Play (2015–present), Chrome Web Store (2013–present)
Website	store.google.com/category/phones

This righthand infobox courtesy of Wikipedia.