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Product comparison · 2 monitors

Lenovo ThinkVision LS2221 computer monitor vs Lenovo ThinkVision LS2251 computer monitor

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  • 64specifications compared
  • 25differ
  • 39identical
  • 7known for one product only

Key differences

  • Display diagonal
    • 54.6 cm (21.5")
    • 55.9 cm (22")
  • Display resolution
    • 1920 x 1080 pixels
    • 1680 x 1050 pixels
  • Native aspect ratio
    • 16:9
    • 16:10
  • Aspect ratio
    • 16:9
    • 16:10
  • Pixel pitch
    • 0.248 x 0.248 mm
    • 0.282 x 0.282 mm
  • Viewable size, horizontal
    • 47.7 cm
    • 47.4 cm
  • Viewable size, vertical
    • 26.8 cm
    • 29.6 cm
  • Viewable size diagonal
    • 54.6 cm
    • 55.8 cm

Side by side

Differences highlightedShow differences only
71 specifications
A

Lenovo

ThinkVision LS2221 computer monitor

Model LS2221

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B

Lenovo

ThinkVision LS2251 computer monitor

Model LS2251

View product
Display9 differ
Display diagonalDiffers54.6 cm (21.5")55.9 cm (22")
Display resolutionDiffers1920 x 1080 pixels1680 x 1050 pixels
Native aspect ratioDiffers16:916:10
TouchscreenNoNo
HD typeKnown for oneFull HD
Display brightness (typical)250 cd/m²250 cd/m²
Response time5 ms5 ms
Supported graphics resolutionsDiffers640 x 350, 720 x 400, 832 x 624, 1600 x 900, 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 1024 (SXGA), 1280 x 768 (WXGA), 1280 x 800 (WXGA), 1440 x 900 (WXGA+), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 640 x 480 (VGA), 800 x 600 (SVGA)640 x 350, 832 x 624, 1024 x 768 (XGA), 1152 x 864 (XGA+), 1280 x 1024 (SXGA), 1440 x 900 (WXGA+), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 640 x 480 (VGA), 800 x 600 (SVGA)
Aspect ratioDiffers16:916:10
Contrast ratio (typical)1000:11000:1
Contrast ratio (dynamic)10000000:110000000:1
Viewing angle, horizontal170°170°
Viewing angle, vertical160°160°
Display number of colours16.78 million colours16.78 million colours
Pixel pitchDiffers0.248 x 0.248 mm0.282 x 0.282 mm
Viewable size, horizontalDiffers47.7 cm47.4 cm
Viewable size, verticalDiffers26.8 cm29.6 cm
Viewable size diagonalDiffers54.6 cm55.8 cm
3DKnown for oneNo
Separate H/V syncYesYes
Performanceidentical
Windows operating systems supportedWindows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, WiWindows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Wi
Multimediaidentical
Built-in speaker(s)NoNo
Built-in cameraNoNo
Designidentical
Market positioningBusinessBusiness
Product colourBlackBlack
Ports & interfaces3 differ
USB Type-A downstream ports quantityDiffers04
VGA (D-Sub) ports quantity11
DVI-D ports quantityDiffers10
DVI-I ports quantity00
HDMI ports quantityDiffers01
HDCPYesYes
AC (power) inYesYes
USB hub versionKnown for one2.0
HDMIKnown for oneYes
Ergonomicsidentical
VESA mountingYesYes
Panel mounting interface100 x 100 mm100 x 100 mm
Cable lock slotYesYes
Cable lock slot typeKensingtonKensington
Tilt angle range-5 - 20°-5 - 20°
On Screen Display (OSD)YesYes
Number of OSD languages88
LED indicatorsPowerPower
Power1 differ
Power consumption (typical)Differs30 W25 W
Power consumption (standby)Known for one1 W
Power consumption (off)Known for one0.5 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Operational conditionsidentical
Operating temperature (T-T)0 - 40 °C0 - 40 °C
Storage temperature (T-T)-20 - 60 °C-20 - 60 °C
Operating relative humidity (H-H)8 - 80%8 - 80%
Storage relative humidity (H-H)5 - 95%5 - 95%
Operating altitude0 - 2438 m0 - 2438 m
Weight & dimensions4 differ
Width (without stand)Differs525 mm572 mm
Depth (without stand)179.8 mm179.8 mm
Height (without stand)Differs390.7 mm415 mm
Weight (without stand)Differs3.95 kg4.44 kg
Bezel width (side)Differs2.35 cm2.44 cm
Packaging data4 differ
Package widthDiffers587 mm634 mm
Package depthDiffers151 mm150 mm
Package heightDiffers452 mm492 mm
Package weightDiffers5.3 kg6.26 kg
Packaging contentidentical
Quick start guideYesYes
ManualYesYes
Sustainabilityidentical
Sustainability certificatesENERGY STARENERGY STAR
Other features4 differ
TV tuner integratedNoNo
CertificationDiffersFCC, VCCI, ISO, TCOISO, FCC, TCO, RoHS
Dimensions (W x D x H) (imperial)Differs525 x 179.8 x 390.7 mm (20.7 x 7.08 x 15.4")570 x 179.8 x 415 mm (22.4 x 7.08 x 16.3")
Box depth (imperial)Differs15.1 cm (5.94")15 cm (5.9")
Box height (imperial)Differs45.2 cm (17.8")49.2 cm (19.4")
Supplied AC adapter typeKnown for oneLCD
Thin Clientidentical
Thin client installedNoNo

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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