This Apple monitor is about as good as you can get currently, although you're paying a premium for the Apple name.
PPI (pixels per inch) is simply the number of horizontal pixels (1920) divided by the display width (20.35"). It's a measure of pixel density, nothing more. A lousy 15" monitor could have the same density value.
The Apple 24" resolution is 1920x1200. If you really want the best, get a 30" display instead, which has 2560x1600 resolution, and the same pixel density value.
Keep in mind these Apple displays cannot be easily connected to Windows machines, only Macs.
PPI (pixels per inch) is simply the number of horizontal pixels (1920) divided by the display width (20.35"). It's a measure of pixel density, nothing more. A lousy 15" monitor could have the same density value.
The Apple 24" resolution is 1920x1200. If you really want the best, get a 30" display instead, which has 2560x1600 resolution, and the same pixel density value.
Keep in mind these Apple displays cannot be easily connected to Windows machines, only Macs.