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Product comparison · 2 monitors

AOC 831S+ computer monitor vs NEC EA221WM-BK computer monitor

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  • 21specifications compared
  • 13differ
  • 8identical
  • 30known for one product only

Key differences

  • Display diagonal
    • 47 cm (18.5")
    • 55.9 cm (22")
  • Display resolution
    • 1366 x 768 pixels
    • 1680 x 1050 pixels
  • Display brightness (typical)
    • 300 cd/m²
    • 250 cd/m²
  • Viewing angle, horizontal
    • 170°
    • 176°
  • Viewing angle, vertical
    • 160°
    • 170°
  • Horizontal scan range
    • 30 - 80 kHz
    • 31.1 - 81.1 kHz
  • Vertical scan range
    • 55 - 75 Hz
    • 56 - 75 Hz
  • USB Type-A downstream ports quantity
    • 0
    • 5

Side by side

Differences highlightedShow differences only
51 specifications
A

AOC

831S+ computer monitor

Model 831S+

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B

NEC

EA221WM-BK computer monitor

Model EA221WM-BK

View product
Display7 differ
Display diagonalDiffers47 cm (18.5")55.9 cm (22")
Display resolutionDiffers1366 x 768 pixels1680 x 1050 pixels
Native aspect ratioKnown for one16:9
TouchscreenNoNo
Display brightness (typical)Differs300 cd/m²250 cd/m²
Response time5 ms5 ms
Aspect ratioKnown for one16:9
Contrast ratio (typical)1000:11000:1
Contrast ratio (dynamic)Known for one10000:1
Viewing angle, horizontalDiffers170°176°
Viewing angle, verticalDiffers160°170°
Pixel pitchKnown for one0.3 x 0.3 mm
Horizontal scan rangeDiffers30 - 80 kHz31.1 - 81.1 kHz
Vertical scan rangeDiffers55 - 75 Hz56 - 75 Hz
Viewable size diagonalKnown for one47 cm
Pixel frequencyKnown for one85.5 MHz
Digital horizontal frequencyKnown for one31.5 - 81.1 kHz
Sync-on-green (SOG)Known for oneYes
Separate H/V syncKnown for oneYes
Composite syncKnown for oneYes
Multimediaidentical
Built-in speaker(s)Known for oneNo
Built-in cameraNoNo
RMS rated powerKnown for one1 W
Designidentical
Product colourBlackBlack
Ports & interfaces2 differ
USB Type-A downstream ports quantityDiffers05
VGA (D-Sub) ports quantity11
DVI-D ports quantityDiffers01
DVI-I ports quantityKnown for one0
HDCPYesYes
USB hub versionKnown for one2.0
Ergonomicsidentical
Panel mounting interfaceKnown for one100 x 100 mm
Plug and PlayKnown for oneYes
Adjustable height (max)Known for one11 cm
Poweridentical
Power consumption (typical)Known for one25 W
Power consumption (standby)Known for one1 W
Weight & dimensions4 differ
Width (without stand)Differs455.2 mm507.8 mm
Depth (without stand)Differs219.7 mm220 mm
Height (without stand)Differs357.9 mm382 mm
Weight (without stand)Differs3.89 kg7.9 kg
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STAR
Other featuresidentical
TV tuner integratedNoNo
Display viewable area (HxV)Known for one409.8 x 230.4 mm
Power managementKnown for one110-240VAC
CertificationKnown for onecUL, CCC, EPA,TUV/S, ROHS, CE, FCC, Vista
Power requirementsKnown for oneAC 100-240 V ～ 50/60 Hz
Display resolution at frequencyKnown for one720 × 400 VGA 640 × 480 / 60 Hz - 75 Hz 800 × 600 / 56 Hz - 75 Hz 832 × 624 / 75 Hz 1024 × 768 / 60 Hz - 75 Hz 1152 × 864 / 75 Hz 1152 × 870 / 75 Hz 1280 × 960 / 60 Hz - 75 Hz 1280 × 1024 / 60 Hz - 75 Hz 1440 × 900 / 60 Hz - 75 Hz 1400 × 1050 / 60 Hz - 75 Hz 1680 × 1050 / 60 Hz
Operational conditionsidentical
Operating temperature (T-T)Known for one5 - 35 °C
Storage temperature (T-T)Known for one-10 - 60 °C
Operating relative humidity (H-H)Known for one20 - 80%
Storage relative humidity (H-H)Known for one10 - 85%
Operating altitudeKnown for one0 - 2000 m

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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