Product comparison · 2 monitors

Acer A221HQb computer monitor vs Viewsonic X Series VX2739WM computer monitor

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  • 27specifications compared
  • 14differ
  • 13identical
  • 34known for one product only

Key differences

The Viewsonic X Series VX2739WM computer monitor has 50 cd/m² more display brightness (typical) than the Acer A221HQb computer monitor (300 cd/m² vs 250 cd/m²). The Acer A221HQb computer monitor has 4 ms more response time than the Viewsonic X Series VX2739WM computer monitor (5 ms vs 1 ms). The Acer A221HQb computer monitor has 6° more viewing angle, horizontal than the Viewsonic X Series VX2739WM computer monitor (176° vs 170°). Display diagonal: 54.6 cm (21.5") on the Acer A221HQb computer monitor, 68.6 cm (27") on the Viewsonic X Series VX2739WM computer monitor.

  • Display diagonal
    • A221HQb computer monitor:54.6 cm (21.5")
    • X Series VX2739WM computer monitor:68.6 cm (27")
  • Display brightness (typical)
    • A221HQb computer monitor:250 cd/m²
    • X Series VX2739WM computer monitor:300 cd/m²
  • Response time
    • A221HQb computer monitor:5 ms
    • X Series VX2739WM computer monitor:1 ms
  • Viewing angle, horizontal
    • A221HQb computer monitor:176°
    • X Series VX2739WM computer monitor:170°
  • Viewing angle, vertical
    • A221HQb computer monitor:176°
    • X Series VX2739WM computer monitor:160°
  • USB Type-A downstream ports quantity
    • A221HQb computer monitor:0
    • X Series VX2739WM computer monitor:4
  • HDMI ports quantity
    • A221HQb computer monitor:0
    • X Series VX2739WM computer monitor:1
  • Panel mounting interface
    • A221HQb computer monitor:100 x 100 mm
    • X Series VX2739WM computer monitor:200 x 100 mm

Side by side

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Comparison of A221HQb, VX2739WM
61 specifications
Display5 differ
Display diagonalDiffers54.6 cm (21.5")68.6 cm (27")
Display resolution1920 x 1080 pixels1920 x 1080 pixels
Native aspect ratio16:916:9
TouchscreenNoNo
HD typeFull HDFull HD
Display brightness (typical)Differs250 cd/m²300 cd/m²
Response timeDiffers5 ms1 ms
Aspect ratio16:916:9
Contrast ratio (typical)Known for oneUnknown — not stated by the source1200:1
Viewing angle, horizontalDiffers176°170°
Viewing angle, verticalDiffers176°160°
Digital horizontal frequencyKnown for oneUnknown — not stated by the source24 - 83 kHz
Digital vertical frequencyKnown for oneUnknown — not stated by the source50 - 76 Hz
Sync-on-green (SOG)Known for oneUnknown — not stated by the sourceYes
Separate H/V syncKnown for oneUnknown — not stated by the sourceYes
Composite syncKnown for oneUnknown — not stated by the sourceYes
Supported graphics resolutionsKnown for one1920 x 1080 (HD 1080)Unknown — not stated by the source
Contrast ratio (dynamic)Known for one50000:1Unknown — not stated by the source
Display number of coloursKnown for one16.78 million coloursUnknown — not stated by the source
3DKnown for oneNoUnknown — not stated by the source
Performanceidentical
Mac operating systems supportedKnown for oneUnknown — not stated by the sourceYes
Multimediaidentical
RMS rated powerKnown for oneUnknown — not stated by the source2 W
Built-in cameraNoNo
Built-in speaker(s)Known for oneNoUnknown — not stated by the source
Designidentical
Product colourBlackBlack
Ports & interfaces2 differ
USB hub versionKnown for oneUnknown — not stated by the source2.0
USB Type-A downstream ports quantityDiffers04
VGA (D-Sub) ports quantity11
DVI-D ports quantity11
DVI-I ports quantity00
HDMIKnown for oneUnknown — not stated by the sourceYes
HDMI ports quantityDiffers01
Audio inputKnown for oneUnknown — not stated by the sourceYes
Audio outputKnown for oneUnknown — not stated by the sourceYes
HDCPYesYes
AC (power) inYesYes
Ergonomics1 differ
Panel mounting interfaceDiffers100 x 100 mm200 x 100 mm
Tilt angle rangeKnown for oneUnknown — not stated by the source20 - -5°
VESA mountingKnown for oneYesUnknown — not stated by the source
Cable lock slotKnown for oneNoUnknown — not stated by the source
Power1 differ
Power consumption (typical)Differs30 W58 W
Power consumption (standby)Known for one0.79 WUnknown — not stated by the source
Power consumption (off)Known for one0.67 WUnknown — not stated by the source
Operational conditionsidentical
Operating relative humidity (H-H)Known for oneUnknown — not stated by the source20 - 90%
Operating temperature (T-T)Known for oneUnknown — not stated by the source32 - 104 °F
Maximum operating temperature range (T-T)Known for oneUnknown — not stated by the source0 - 40 °C
Weight & dimensions4 differ
Width (with stand)Known for oneUnknown — not stated by the source648 mm
Depth (with stand)Known for oneUnknown — not stated by the source251 mm
Height (with stand)Known for oneUnknown — not stated by the source490 mm
Weight (with stand)Known for oneUnknown — not stated by the source6.8 kg
Width (without stand)Differs511 mm648 mm
Depth (without stand)Differs371 mm66 mm
Height (without stand)Differs199 mm411 mm
Weight (without stand)Differs3.5 kg6.2 kg
Packaging contentidentical
Quick start guideKnown for oneUnknown — not stated by the sourceYes
ManualKnown for oneUnknown — not stated by the sourceYes
Other features1 differ
TV tuner integratedNoNo
Power requirementsKnown for oneUnknown — not stated by the source100 - 240 V
CertificationDiffersMPR II WEEEUL, CUL, FCC-B, CB, CE, ERGO, ULAR, CCC, WEEE, RoHS
Sustainabilityidentical
Sustainability certificatesKnown for oneENERGY STARUnknown — not stated by the source
Thin Clientidentical
Thin client installedKnown for oneNoUnknown — not stated by the source

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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