76points

Acer H7 H277H 27"

78points

Dell S2240T 21.5"

93points

Dell S2817Q 28"

Acer H7 H277H 27"
Dell S2240T 21.5"
Comparison winner
Dell S2817Q 28"
vs
vs

47 facts in comparison

Acer H7 H277H 27" vs Dell S2240T 21.5" vs Dell S2817Q 28"

Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

Why is Acer H7 H277H 27" better than Dell S2240T 21.5" & Dell S2817Q 28"?

  • Power consumption operation
    30W vs30,90W
  • Has stereo speakers
  • Has a DVI connector
  • Has a VGA connector

Why is Dell S2240T 21.5" better than Acer H7 H277H 27" & Dell S2817Q 28"?

  • Height
    320mmvs370.8,383.5mm
  • Shipping weight
    5.1kgvs7,9.5kg
  • Weight
    3.4kgvs4500,5034.9g
  • Has a socket for a 3.5 mm audio jack
  • Width
    523.2mmvs620,657.9mm
  • Has a touch screen

Why is Dell S2817Q 28" better than Acer H7 H277H 27" & Dell S2240T 21.5"?

  • Response time
    2msvs4,12ms
  • Screen size
    27.9"vs27,21.5"
  • Resolution
    3840 x 2160pxvs1920 x 1080,1920 x 1080px
  • Pixel density
    157ppivs81,102ppi
  • Luminance
    300cd/m²vs250,250cd/m²
  • HDMI ports
    2vs1,1
  • Display colors
    1074mvs16.7,16.7m
  • Power consumption on standby
    0.3W vs0.5,0.5W

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Top specs and features

relevant

General info

1.supports total tilt
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

370.8mm

320mm

383.5mm

Best

Asus VP228N 21.5"

3.9mm

3.Supports VESA mount
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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.

4.thickness

217mm

205.7mm

185.4mm

Best

LG 22EA53VQ

5.5mm

5.Has a swivel stand
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

For example

LG UltraGear 34GK950F 34"

6.shipping weight

7kg

5.1kg

9.5kg

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

12ms

2ms

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

81ppi

102ppi

157ppi

Best

Dell UltraSharp UP3218K

280ppi

3.screen size

27"

21.5"

27.9"

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

Best

Sharp LB-1085

108"

4.every pixel has three subpixels
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

3840 x 2160px

Best

Dell UltraSharp UP3218K

7680 x 4320px

relevant

Colors

1.luminance

250cd/m²

250cd/m²

300cd/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

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

2.HDMI ports

1

1

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

4.has a DVI connector
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

5.has a VGA connector
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

6.has FireWire
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

30W

30W

90W

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

0.3W

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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 H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

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

For example

Philips Brilliance 492P8 49″

6.supports common interface
Acer H7 H277H 27"
Dell S2240T 21.5"
Dell S2817Q 28"

This is a technology which allows separation of the TV screen and the decoder. It is used for pay-to-view TV (like Apple TV).

For example

LG UltraGear 34GK950F 34"

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