css resolution (media query)

device-pixel-ratio / resolution

You can use resolution property to specify high resolution display.

Some browser dose not support it. You should use device-pixel-ratio instead of resolution

css resolution (css image-set)

bacground-image#image-set

You can use background-image#image-set to specify high resolution display. It is more simply than media query.

All of mobile browser including Android browser can use it.