Dell XPS 13 9350

Pixel pitch (computed from PPI; a rectangular estimate, not a measured panel pitch)

150 um

Physical size (computed from the rectangle, not the usable area)

11.34 by 7.09 in (28.8 by 18 cm)

Aspect ratio (computed)

16:10

Megapixels (computed)

2.3

Looks sharp from (assuming 20/20 vision, one pixel per arcminute)

20.3 in and further

Pixels per degree at an assumed 20 in viewing distance

59.1

Density as a percentage of Windows' 96 PPI reference (a ratio, not a scaling recommendation)

176%

macOS 2x workspace (hypothetical: half the native resolution in points)

960 by 600 points

Every row above is computed here from the stated resolution and the stated diagonal. With w and h in pixels and the diagonal in inches: PPI = sqrt(w^2 + h^2) / diagonal, which here is sqrt(1920^2 + 1200^2) / 13.37; pixel pitch = 25.4 mm / PPI; physical size = pixels / PPI, which is the full panel rectangle and not the usable area, so a screen with rounded corners or a notch has less usable area than the size shown; sharpness distance = 1 / (PPI x tan(1/60 degree)), the distance at which one pixel spans one arcminute for 20/20 vision; pixels per degree = 2 x distance x tan(0.5 degree) x PPI at the assumed viewing distance. Values are rounded to two decimals, and to one decimal for the pitch, the sizes in centimeters, the distances, and the pixels per degree.

Pixel pitch (computed from PPI; a rectangular estimate, not a measured panel pitch)

112.5 um

Physical size (computed from the rectangle, not the usable area)

11.34 by 7.09 in (28.8 by 18 cm)

Aspect ratio (computed)

16:10

Megapixels (computed)

4.1

Looks sharp from (assuming 20/20 vision, one pixel per arcminute)

15.2 in and further

Pixels per degree at an assumed 20 in viewing distance

78.8

Density as a percentage of Windows' 96 PPI reference (a ratio, not a scaling recommendation)

235%

macOS 2x workspace (hypothetical: half the native resolution in points)

1280 by 800 points

Every row above is computed here from the stated resolution and the stated diagonal. With w and h in pixels and the diagonal in inches: PPI = sqrt(w^2 + h^2) / diagonal, which here is sqrt(2560^2 + 1600^2) / 13.37; pixel pitch = 25.4 mm / PPI; physical size = pixels / PPI, which is the full panel rectangle and not the usable area, so a screen with rounded corners or a notch has less usable area than the size shown; sharpness distance = 1 / (PPI x tan(1/60 degree)), the distance at which one pixel spans one arcminute for 20/20 vision; pixels per degree = 2 x distance x tan(0.5 degree) x PPI at the assumed viewing distance. Values are rounded to two decimals, and to one decimal for the pitch, the sizes in centimeters, the distances, and the pixels per degree.

Pixel pitch (computed from PPI; a rectangular estimate, not a measured panel pitch)

100 um

Physical size (computed from the rectangle, not the usable area)

11.34 by 7.09 in (28.8 by 18 cm)

Aspect ratio (computed)

16:10

Megapixels (computed)

5.18

Looks sharp from (assuming 20/20 vision, one pixel per arcminute)

13.5 in and further

Pixels per degree at an assumed 20 in viewing distance

88.7

Density as a percentage of Windows' 96 PPI reference (a ratio, not a scaling recommendation)

265%

macOS 2x workspace (hypothetical: half the native resolution in points)

1440 by 900 points

Every row above is computed here from the stated resolution and the stated diagonal. With w and h in pixels and the diagonal in inches: PPI = sqrt(w^2 + h^2) / diagonal, which here is sqrt(2880^2 + 1800^2) / 13.37; pixel pitch = 25.4 mm / PPI; physical size = pixels / PPI, which is the full panel rectangle and not the usable area, so a screen with rounded corners or a notch has less usable area than the size shown; sharpness distance = 1 / (PPI x tan(1/60 degree)), the distance at which one pixel spans one arcminute for 20/20 vision; pixels per degree = 2 x distance x tan(0.5 degree) x PPI at the assumed viewing distance. Values are rounded to two decimals, and to one decimal for the pitch, the sizes in centimeters, the distances, and the pixels per degree.