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The best 21 monitors today use LED backlit panels with Full HD resolution to complement the screen size. Most of these models are equipped with quick response time and great contrast ratios for vibrant, sharp picture quality. The listing below represents the top models with 21" or higher, as rated by expert reviews, available from leading brands like HP, Asus, LG and Dell.

Browse All Top 21 inch Monitors »

BenQ GW2255

BenQ GW2255 Monitor


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BenQ GW2255
ViewSonic TD2340
Acer H236HL
ViewSonic VX2370Smh
HP ZR2330w
BenQ GW2255 Monitor
ViewSonic TD2340 Monitor
Acer H236HL bid Monitor
ViewSonic VX2370Smh-LED Monitor
HP ZR2330w LCD Monitor
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Release Date
Mar 2013
Jan 2013
Feb 2013
Dec 2012
Apr 2013
Screen Size
21.5 inch
23.0 inch
23.0 inch
23.0 inch
23.0 inch
Aspect Ratio
16:9
16:9
Widescreen (16:9)
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
20000000:1
100000000:1
1000:1
1000:1 / 1000000:1 (dynamic)
Dot Pitch
0.248 mm
0.265 mm
Max. Resolution
1920 x 1080
1920 x 1080
1920 x 1080
1920 x 1080
1920 x 1080
Response Time
6.0 ms
5.0 ms
5.0 ms
7.0 ms
14.0 ms
Color Depth
16.7 million colors
16.7 million colors
16.7 million colors
Monitor Type
LCD Monitor
LED-backlit LCD monitor / TFT active matrix
LED
LED Monitor
IPS LED Backlit Monitor

Good color and grayscale performance, Responsive touch screen

Excellent image quality

Accurate colors, Ergonomic stand, USB hub