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Monitor Radar

Updated Nov 6, 2026

Updated today

AOC Q27P4CV or MSI 321UPD?

  • Cheapest todayAOC Q27P4CV$12 less
  • Higher spec sheet scoreMSI 321UPD6.1 vs. 5.9

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Score by component, side by side

AOC Q27P4CV wins on connections; MSI 321UPD wins on ergonomics.

  • 3.6Image4.5
  • 8.5Smoothness8.0
  • 8.0 (wins)Connections6.0
  • 4.0Ergonomics7.0 (wins)

Both prices over the last 30 days

First data point for one of the two: the chart appears as the days go by.

Still only a few days of data for both to read the trend; the chart fills in as the days go by.

Where is each one cheapest today?

Updated 06/11/2026

AOC Q27P4CV
MSI 321UPD

The math the store doesn’t do

Price divided by size and running cost, side by side.

MathAOC Q27P4CVMSI 321UPD
Price per inch$18.44$15.94 menor

Ficha técnica lado a lado

ItemAOC Q27P4CVMSI 321UPD
Screen
Type changesGeneral use and officeGaming (144 Hz or more)
Size changes27 ″32 ″
Resolution changesQHD4K
Pixel density changes109 ppi138 ppi
Aspect ratio16:916:9
Stated HDR changesHDRnot listed
Line changesnot listedMAG
Smoothness
Refresh rate changes120 Hz320 Hz
Response time (stated) changes4 ms5 ms
Sync changesnot listedFreeSync
Connections
HDMI ports11
DisplayPort ports11
USB-C changesYesnot listed
Built-in speakerYesYes
Ergonomics
Height adjustmentYesYes
VESA mount holes changesnot listedYes
General
Model code changesQ27P4CV321UPD

Other comparisons

How we choose

Source: Amazon.ca catalog, checked on 06/11/2026.

Lowest price seen for the product on Amazon.ca, delivered to Toronto M5V 3L9, on the day it was read, before GST/HST. The model is the brand plus the name of the monitor; the versions go in the table. The price range, the median and the position use only models with a score; the price comparison looks at models whose score is within 0.5 points.

The spec score doesn’t measure the real calibration or durability, and the strong or weak point reading is just a comparison of numbers, not a buying recommendation.