90points

Acer XR XR342CK 34"

78points

Dell S2240T 21.5"

96points

Dell UltraSharp UP2715K

79points

LG E2442V

Acer XR XR342CK 34"
Dell S2240T 21.5"
Comparison winner
Dell UltraSharp UP2715K
LG E2442V
vs
vs
vs

36 facts in comparison

Acer XR XR342CK 34" vs Dell S2240T 21.5" vs Dell UltraSharp UP2715K vs LG E2442V

Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

Why is Acer XR XR342CK 34" better than Dell S2240T 21.5" & Dell UltraSharp UP2715K & LG E2442V?

  • Has a swivel stand
  • Has a curved display

Why is Dell S2240T 21.5" better than Acer XR XR342CK 34" & Dell UltraSharp UP2715K & LG E2442V?

  • Height
    320mmvs368.3,384.6,342.9mm
  • Weight
    3.4kgvs9697.8,7140,3600g
  • Width
    523.2mmvs816.1,637.3,566.4mm
  • Has a touch screen

Why is Dell UltraSharp UP2715K better than Acer XR XR342CK 34" & Dell S2240T 21.5" & LG E2442V?

  • Thickness
    47.9mmvs309.1,205.7,55.9mm
  • Has an external memory slot

Why is LG E2442V better than Acer XR XR342CK 34" & Dell S2240T 21.5" & Dell UltraSharp UP2715K?

  • Power consumption operation
    25W vs51,30,100W
  • Contrast ratio
    5000000:1vs1000,3000,1000:1
  • Power consumption on standby
    0.3W vs0.5,0.5,1.2W
  • Has a DVI connector
  • Shipping weight
    4.94kgvs15.6,5.1,13.5kg
  • Has a VGA connector

Videos

Powered by

Top specs and features

relevant

General info

1.supports total tilt
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

368.3mm

320mm

384.6mm

342.9mm

Best

Asus VP228N 21.5"

3.9mm

3.thickness

309.1mm

205.7mm

47.9mm

55.9mm

Best

LG 22EA53VQ

5.5mm

4.Supports VESA mount
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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.Has a swivel stand
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

6.shipping weight

15.6kg

5.1kg

13.5kg

4.94kg

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

5ms

12ms

8ms

5ms

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

109ppi

102ppi

218ppi

91.79ppi

Best

Dell UltraSharp UP3218K

280ppi

3.screen size

34"

21.5"

27"

24"

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

Best

Sharp LB-1085

108"

4.every pixel has three subpixels
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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 XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

3440 x 1440px

1920 x 1080px

5120 x 2880px

1920 x 1080px

Best

Dell UltraSharp UP3218K

7680 x 4320px

relevant

Colors

1.luminance

300cd/m²

250cd/m²

350cd/m²

250cd/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

3000:1

1000:1

5000000:1

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

1070m

16.7m

1074m

16.7m

Number of colors that a display can accurately reproduce.

Best

Dell UltraSharp UP2716D 27"

1074m

4.has an ambient light sensor
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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 XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

2.has a socket for a 3.5 mm audio jack
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

3.has a DVI connector
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

4.has a VGA connector
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

5.has FireWire
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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"

6.has an external memory slot
Acer XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

51W

30W

100W

25W

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

0.3W

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 XR XR342CK 34"
Dell S2240T 21.5"
Dell UltraSharp UP2715K
LG E2442V

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

Top 10 monitors

Add to comparison
    This page is currently only available in English.