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This list of the best 20-inch monitors is narrowed down to the models which have a display size ranging from 20 inches to 22 inches.

This screen size however, is measured diagonally from the left bottom corner to the top right one and includes only the inside display area of the panel leaving out the frame.

Viewsonic and BenQ are behind some of the leading 20 - 22 inch monitors and these models are available with either LED or LCD backlighting.

Browse All Top 20 inch Monitors »

BenQ GW2255

BenQ GW2255 Monitor


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BenQ GW2255
Hewlett Packard 20xi
LENOVO ThinkVision LT2223p
Acer H226HQL
Hewlett Packard Pavilion 22xi
BenQ GW2255 Monitor
Hewlett Packard 20xi Monitor
LENOVO ThinkVision LT2223p LED LCD Monitor
Acer H226HQL bid LCD Monitor
Hewlett Packard Pavilion 22xi Monitor
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Release Date
Mar 2013
Feb 2013
Apr 2013
Feb 2013
Jan 2013
Screen Size
21.5 inch
20.0 inch
21.5 inch
21.5 inch
21.5 inch
Aspect Ratio
16:9
16:9
16:9
16:9
Widescreen - 16:9
Brightness
250.0 cd/m^2
250.0 cd/m^2
250.0 cd/m^2
250.0 cd/m^2
250.0 cd/m^2
Contrast Ratio
3000:1
10000000:1
1000:1 / 2000000:1 (dynamic)
100000000:1
1000:1
Dot Pitch
0.248 mm
0.277 mm
0.248 mm
0.248 mm
Max. Resolution
1920 x 1080
1600 x 900
1920 x 1080
1920 x 1080
1920 x 1080
Response Time
6.0 ms
7.0 ms
5.0 ms
5.0 ms
7.0 ms
Color Depth
16.7 million colors
16.7 million colors
16.7 million colors
Monitor Type
LCD Monitor
IPS w/LED backlight
LED-backlit LCD monitor
LCD Monitor
LED-backlit LCD monitor / TFT active matrix

  • The Lenovo LT2223p is a feature-rich 21.5-inch business monitor that delivers good grayscale and small text performance. Its color accuracy could be better, though, and it's a bit pricey considering its size.


Top 5 20 inch monitor:

  1. BenQ GW2255 Monitor
  2. Hewlett Packard 20xi Monitor
  3. LENOVO ThinkVision LT2223p LED LCD Monitor
  4. Acer H226HQL bid LCD Monitor
  5. Hewlett Packard Pavilion 22xi Monitor