69points

Acer R1 R221Q 21.5"

94points

Dell UltraSharp U2713HM

96points

Dell UltraSharp UP2715K

Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Comparison winner
Dell UltraSharp UP2715K
vs
vs

40 facts in comparison

Acer R1 R221Q 21.5" vs Dell UltraSharp U2713HM vs Dell UltraSharp UP2715K

Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

Why is Acer R1 R221Q 21.5" better than Dell UltraSharp U2713HM & Dell UltraSharp UP2715K?

  • Response time
    4msvs8,8ms
  • Power consumption operation
    22W vs100,100W
  • Height
    302.3mmvs378.2,384.6mm
  • Power consumption on standby
    0.5W vs0.5,1.2W
  • Shipping weight
    3.7kgvs10.2,13.5kg
  • Weight
    2.3kgvs5600,7140g
  • Width
    498.1mmvs639.3,637.3mm

Why is Dell UltraSharp U2713HM better than Acer R1 R221Q 21.5" & Dell UltraSharp UP2715K?

  • Has a swivel stand
  • Supports portrait mode

Why is Dell UltraSharp UP2715K better than Acer R1 R221Q 21.5" & Dell UltraSharp U2713HM?

  • Resolution
    5120 x 2880pxvs1920 x 1080,2560 x 1440px
  • Display colors
    1074mvs16.7,1070m
  • Thickness
    47.9mmvs224,200.3mm
  • Has an external memory slot

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Top specs and features

relevant

General info

1.supports total tilt
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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

378.2mm

384.6mm

Best

Asus VP228N 21.5"

3.9mm

3.Has a swivel stand
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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.Supports VESA mount
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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.

5.thickness

224mm

200.3mm

47.9mm

Best

LG 22EA53VQ

5.5mm

6.shipping weight

3.7kg

10.2kg

13.5kg

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

8ms

8ms

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.screen size

21.5"

27"

27"

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

Best

Sharp LB-1085

108"

3.every pixel has three subpixels
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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.

4.has an IPS screen
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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.

5.resolution

1920 x 1080px

2560 x 1440px

5120 x 2880px

Best

Dell UltraSharp UP3218K

7680 x 4320px

6.has anti-glare coating
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

Anti-glare helps to reduce the external reflections of light coming from outside the display.

relevant

Colors

1.luminance

250cd/m²

350cd/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

1000:1

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

1070m

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"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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

2.has a DVI connector
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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

3.has a VGA connector
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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

4.has FireWire
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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"

5.Is DLNA certified
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

All DLNA certified products are compatible with one another. When different devices are connected to the same network, data can be transferred easily between them.

For example

Samsung T23B550EW

6.has an external memory slot
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

The device has a standard memory slot (such as an SD or micro SD card slot) so that you can either extend the internal storage with affordable memory modules or you can retrieve data, such as photographs, easily from a memory card.

relevant

Power

1.power consumption operation

22W

100W

100W

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

1.2W

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"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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

2.has DTS Surround
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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"

3.supports Dolby Digital Plus
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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"

4.has a search browser
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

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

For example

Philips Brilliance 492P8 49″

5.has a child lock
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

A child lock enables adults to prevent or restrict children’s use of the device.

For example

Asus VP228N 21.5"

6.supports Dolby Virtual
Acer R1 R221Q 21.5"
Dell UltraSharp U2713HM
Dell UltraSharp UP2715K

Dolby Virtual Speaker produces a surround sound experience over the stereo speakers.

For example

Asus 27T1EH

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