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Monitor Radar

Updated 12 Nov 2026

LG 34U650A or MSI MAG401QR?

MAG401QR costs $19 less today and also has score 0.6 higher (4.3 vs. 3.7).

LG 34U650A

3.7score

MSI MAG401QR

4.3score · higher

LG wins 1by componentMSI wins 2

  • 2.1Image3.0
  • 3.3Smoothness5.5
  • 8.0Connections5.0
  • 4.0Ergonomics·

MSI MAG401QR is $19 the cheaper

$619

$680

9% below the previous check

The best for each use

By the spec rule for each use, the same one the lists on this site use.

Neither one fits: Monitors for work and study, Monitors for competitive gaming, Monitors for casual gaming and console, Monitors for creative work (photo and video), Monitors to use two on the desk, Cheap monitors worth buying.

The comparison in detail

Score by component, side by side

LG 34U650A wins on connections; MAG401QR wins on smoothness.

  • 2.1Image3.0
  • 3.3Smoothness5.5 (wins)
  • 8.0 (wins)Connections5.0
  • 4.0ErgonomicsN/A

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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 12/11/2026

LG 34U650A
MAG401QR

The math the store doesn’t do

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

MathLG 34U650AMAG401QR
Price per inch$18.20$15.00 menor

Spec sheet side by side

ItemLG 34U650AMAG401QR
Screen
TypeUltrawide (21:9 or 32:9)Ultrawide (21:9 or 32:9)
Size changes34 ″40 ″
Resolution changesQHDUWQHD
Pixel density changes86 ppi93 ppi
Aspect ratio21:921:9
Curved screen changesYesnot listed
Stated HDR changesHDR10HDR400
Line changesUltraWidenot listed
Smoothness
Refresh rate changes100 Hz155 Hz
Response time (stated) changes5 msnot listed
Sync changesnot listedFreeSync
Connections
HDMI ports11
DisplayPort ports11
USB-C changesYesnot listed
Built-in speaker changesYesnot listed
Ergonomics
Height adjustment changesYesnot listed
General
Model code changes34U650AMAG401QR

Other comparisons

See more 2 comparisons
How we choose

Source: Amazon.ca catalog, checked on 12/11/2026.

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.