61points

Acer H7 H277HU 27"

69points

Acer R1 R221Q 21.5"

96points

Dell UltraSharp UP2715K

Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
Comparison winner
Dell UltraSharp UP2715K
vs
vs

38 facts in comparison

Acer H7 H277HU 27" vs Acer R1 R221Q 21.5" vs Dell UltraSharp UP2715K

Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
Dell UltraSharp UP2715K
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
Dell UltraSharp UP2715K

Why is Acer H7 H277HU 27" better than Acer R1 R221Q 21.5" & Dell UltraSharp UP2715K?

  • Response time
    4msvs4,8ms

Why is Acer R1 R221Q 21.5" better than Acer H7 H277HU 27" & Dell UltraSharp UP2715K?

  • Height
    302.3mmvs363.2,384.6mm
  • Shipping weight
    3.7kgvs6.7,13.5kg
  • Has a VGA connector
  • Width
    498.1mmvs612.9,637.3mm

Why is Dell UltraSharp UP2715K better than Acer H7 H277HU 27" & Acer R1 R221Q 21.5"?

  • Resolution
    5120 x 2880pxvs2560 x 1440,1920 x 1080px
  • Pixel density
    218ppivs108,102ppi
  • Has anti-glare coating
  • Thickness
    47.9mmvs216.9,224mm
  • Supports VESA mount
  • Has an external memory slot

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Top specs and features

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General info

1.supports total tilt
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
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

363.2mm

302.3mm

384.6mm

Best

Asus VP228N 21.5"

3.9mm

3.Has a swivel stand
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
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.

For example

LG UltraGear 34GK950F 34"

4.thickness

216.9mm

224mm

47.9mm

Best

LG 22EA53VQ

5.5mm

5.Supports VESA mount
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
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.

6.shipping weight

6.7kg

3.7kg

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

4ms

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.pixel density

108ppi

102ppi

218ppi

Best

Dell UltraSharp UP3218K

280ppi

3.screen size

27"

21.5"

27"

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

Best

Sharp LB-1085

108"

4.every pixel has three subpixels
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
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.

5.has an IPS screen
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
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.

6.resolution

2560 x 1440px

1920 x 1080px

5120 x 2880px

Best

Dell UltraSharp UP3218K

7680 x 4320px

relevant

Colors

1.luminance

350cd/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

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.has an ambient light sensor
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
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

Features

1.has stereo speakers
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
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 H7 H277HU 27"
Acer R1 R221Q 21.5"
Dell UltraSharp UP2715K

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

For example

Philips Brilliance 492P8 49″

5.supports USB recording
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
Dell UltraSharp UP2715K

USB recording is the capacity of the device to record content into plugged in USB devices.

For example

Dell UltraSharp UP2516D 25"

6.supports Dolby Virtual
Acer H7 H277HU 27"
Acer R1 R221Q 21.5"
Dell UltraSharp UP2715K

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

For example

Asus 27T1EH

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