Each monitor has a 24-inch 1900x1200 display with a 1000:1 contrast ratio, a brightness of 320 cd/m² and 96.7% coverage of the sRGB color range. Additional features include auto luminance control with X-Light Pro, ColorComp and AmbiBright technologies, internal programmable 12-bit LUTs and a 4-way adjustable base. Both ship with a 4-year parts and labor warranty (backlight included).
From where Im sitting, the only difference between the two is that the LCD2490W2 offers a color calibration solution. As such, its asking price is $1,299, which compares to the LCD2490WUXi2s $1,099.