> A 28" 4K UHD has 157 dpi, so I wouldn't want to try it at 100% scaling - ouch. It ought to be running in the 150-175% scaling range. That’s not how it works.

> A 28" 4K UHD has 157 dpi, so I wouldn't want to try it at 100% scaling - ouch. It ought to be running in the 150-175% scaling range. That’s not how it works. Lower dpi does not somehow give you more real estate! You should still be running with ~200% scaling because you are viewing it at a greater distance. Optimal viewing distance, assuming 16:9 ratio, is 120 cm vs 140 cm for 24" vs 28", respectively[1]. Accounting for the difference gets you ~155 ppd with both monitors[2][3], maintaining 25.0° horizontal viewing angle. The closer your viewing distance the more ppi you need for the same density. That 28" is not inferior to the 24", when you account for distance, despite the lower ppi, because the greater viewing distance makes the pixels look smaller, thus creating more dense image. [1] https://en.wikipedia.org/wiki/Display_size https://en.wikipedia.org/wiki/Display_size [2] http://phrogz.net/tmp/ScreenDens2In.html#find:density,pxW:3840,pxH:2160,size:23.8,sizeUnit:in,axis:diag,distance:120,distUnit:cm http://phrogz.net/tmp/ScreenDens2In.html#find:density,pxW:38... [3] http://phrogz.net/tmp/ScreenDens2In.html#find:density,pxW:3840,pxH:2160,size:28,sizeUnit:in,axis:diag,distance:140,distUnit:cm http://phrogz.net/tmp/ScreenDens2In.html#find:density,pxW:38...