Device pixel density tests

-webkit-min-device-pixel-ratio
nothin’
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
-o-min-device-pixel-ratio
nothin’
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
min-resolution (dpi)
nothin’
96dpi
105dpi
115dpi
125dpi
135dpi
144dpi
154dpi
163dpi
173dpi
182dpi
192dpi
202dpi
211dpi
221dpi
230dpi
240dpi
250dpi
259dpi
267dpi
278dpi
288dpi
min-resolution (dppx)
nothin’
1.0dppx
1.1dppx
1.2dppx
1.3dppx
1.4dppx
1.5dppx
1.6dppx
1.7dppx
1.8dppx
1.9dppx
2.0dppx
2.1dppx
2.2dppx
2.3dppx
2.4dppx
2.5dppx
2.6dppx
2.7dppx
2.8dppx
2.9dppx
3.0dppx

If you have a device that isn’t listed below and has a -webkit-min-device-pixel-ratio that’s not 1.0, please let me know and I’ll add it to the list. I’m @marcedwards on Twitter and @marc on App.net.

Devices with -webkit-min-device-pixel-ratio: 1.0

All non-Retina Macs
All non-Retina iOS devices
Acer Iconia A500
Samsung Galaxy Tab 10.1
Samsung Galaxy S

Devices with -webkit-min-device-pixel-ratio: 1.3

Google Nexus 7

Devices with -webkit-min-device-pixel-ratio: 1.5

Google Nexus S
Samsung Galaxy S II
HTC Desire
HTC Desire HD
HTC Incredible S
HTC Velocity
HTC Sensation

Devices with -webkit-min-device-pixel-ratio: 2.0

iPhone 4
iPhone 4S
iPhone 5
iPad (3rd generation)
iPad 4
All Macs with Retina displays
Google Galaxy Nexus
Google Nexus 4
Google Nexus 10
Samsung Galaxy S III
Samsung Galaxy Note II
Sony Xperia S
HTC One X

Devices with -webkit-min-device-pixel-ratio: 3.0

HTC Butterfly
Sony Xperia S

Looking for a media query to cover most high-dpi devices? Here you go:
A CSS media query that captures almost all high DPI aware devices