69points

Acer R1 R221Q 21.5"

97points

Asus VG23AH

98points

Dell UltraSharp U2413 24"

Acer R1 R221Q 21.5"
Asus VG23AH
Comparison winner
Dell UltraSharp U2413 24"
vs
vs

44 facts in comparison

Acer R1 R221Q 21.5" vs Asus VG23AH vs Dell UltraSharp U2413 24"

Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

Why is Acer R1 R221Q 21.5" better than Asus VG23AH & Dell UltraSharp U2413 24"?

  • Response time
    4msvs5,6ms
  • Power consumption operation
    22W vs40,130W
  • Height
    302.3mmvs350,361.7mm
  • Weight
    2.3kgvs6500,4998.6g
  • Shipping weight
    3.7kgvs9.7,9.3kg
  • Width
    498.1mmvs550.2,556mm

Why is Asus VG23AH better than Acer R1 R221Q 21.5" & Dell UltraSharp U2413 24"?

  • Thickness
    69mmvs224,200.4mm
  • Displays 3D with glasses

Why is Dell UltraSharp U2413 24" better than Acer R1 R221Q 21.5" & Asus VG23AH?

  • Screen size
    24"vs21.5,23"
  • Resolution
    1920 x 1200pxvs1920 x 1080,1920 x 1080px
  • Luminance
    350cd/m²vs250,250cd/m²
  • Display colors
    1074mvs16.7,16.7m
  • Supports VESA mount
  • Supports PiP and PaP
  • Supports portrait mode
  • Has an external memory slot

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Top specs and features

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General info

1.supports total tilt
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

Total tilt adjustment is the ability for the monitor head to move up and down. Tilt adjustment enables a user to change the viewing position of the display, creating a more comfortable view of the screen.

2.height

302.3mm

350mm

361.7mm

Best

Asus VP228N 21.5"

3.9mm

3.Has a swivel stand
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

A swivel stand allows you to adjust the position of the display left or right, so you can position it to the desired angle.

4.thickness

224mm

69mm

200.4mm

Best

LG 22EA53VQ

5.5mm

5.Supports VESA mount
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

The VESA mount is a standard used by most manufacturers. A device that supports the VESA mount can be mounted on many different supports, from arms to wall mounts.

6.shipping weight

3.7kg

9.7kg

9.3kg

The gross weight of the product when packaged, including all wrapping, and boxing.

Best

Asus VP247N 23.6"

0.8kg

relevant

Display

1.response time

4ms

5ms

6ms

Response time is how long it takes for a display to change the state of pixels, in order to show new content. The less time it takes to respond, the less likely it is to blur fast-changing images.

Best

LG UltraGear 34GK950F 34"

1ms

2.pixel density

102ppi

95.78ppi

94ppi

Best

Dell UltraSharp UP3218K

280ppi

3.screen size

21.5"

23"

24"

The bigger the screen size is, the better the user experience.

Best

Sharp LB-1085

108"

4.every pixel has three subpixels
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

The device has a display with three full subpixels per pixel, resulting in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.

5.has an IPS screen
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

IPS (In-Plane Switching) is a technology used for LCDs. It was designed to overcome the main limitations of normal TFTs TN-matrices: relatively slow response times, small viewing angles and low quality color reproduction.

6.resolution

1920 x 1080px

1920 x 1080px

1920 x 1200px

Best

Dell UltraSharp UP3218K

7680 x 4320px

relevant

Colors

1.luminance

250cd/m²

250cd/m²

350cd/m²

Luminance is the intensity of light that a device emits.

Best

Acer Predator X35 35" UW-UXGA

1000cd/m²

2.contrast ratio

1000:1

80000000:1

1000:1

Contrast ratio is the visual distance between the lightest and the darkest colors that may be reproduced on the display. A high contrast ratio is desired, resulting in richer dark colors and more distinctive color gradation.

Best

Acer XB0 XB240H 24"

100000000:1

3.display colors

16.7m

16.7m

1074m

Number of colors that a display can accurately reproduce.

Best

Dell UltraSharp UP2716D 27"

1074m

4.has an ambient light sensor
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

An ambient light sensor adjusts the luminance of the device according to the amount of natural light that surrounds it.

For example

Samsung CHG90 49"

relevant

Connectivity

1.has a HDMI output
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.

2.HDMI ports

1

2

2

More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.

Best

Acer HN274H

4

3.has a socket for a 3.5 mm audio jack
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

With a standard mini jack socket, you can use the device with most headphones.

4.has a DVI connector
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

Devices that have a DVI connector (usually computers and notebooks) can be connected to the TV set.

5.has a VGA connector
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

VGA connector is a widespread connector and is found on many video cards, computer monitors, and some television sets.

6.has FireWire
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

A FireWire port allows fast transfers of big files such as HD movies. However, newer USB versions achieve a similar speed.

For example

Dell S2316H 23"

relevant

Power

1.power consumption operation

22W

40W

130W

How much power the device consumes when it's switched on.

Best

Sharp LB-1085

1.1W

2.power consumption on standby

0.5W

0.5W

0.5W

How much power the device consumes when shut down but still plugged in.

Best

Asus MB168B Plus

0W

relevant

Features

1.has stereo speakers
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

2.supports PiP and PaP
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

Devices supporting PiP and PaP - Picture in Picture can show two images from different sources at the same time by splitting the viewing window or creating a smaller window inside the bigger image.

3.has DTS Surround
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

DTS Surround is a high-quality audio codec that supports up to six audio channels, with good bitrates and audio quality.

For example

Acer S7 S277HK 27"

4.supports Dolby Digital Plus
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

If a device supports Dolby Digital Plus it can deliver up to fourteen different audio channels (sides) with improved bitrates, for a much better sound quality.

For example

LG UltraGear 34GK950F 34"

5.has a search browser
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

With a search browser application you can surf the internet from your device.

For example

Philips Brilliance 492P8 49″

6.supports Dolby Digital MS10
Acer R1 R221Q 21.5"
Asus VG23AH
Dell UltraSharp U2413 24"

If a device supports Dolby Digital MS10 it can decode Dolby Digital and Dolby Digital Plus.

For example

LG UltraGear 34GK950F 34"

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