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Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
Top 37%631 points
Top 37%
Top 1%1,004 points
Top 1%
Top 16%848 points
Top 16%
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
Top specs and features

Acer R1 R221Q 21.5" vs Asus MG278Q 27" vs HP DreamColor LP2480zx: 44 facts in comparison

1. response time

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.
4ms
Acer Predator XB2 (XB252Q) 24.5": 1ms
1ms
6ms

2. screen size

The bigger the screen size is, the better the user experience.
21.5"
Sharp LB-1085: 108"
27"
24"

3. power consumption operation

How much power the device consumes when it's switched on.
22W
Sharp LB-1085: 1.1W
38.7W
90W

4. every pixel has three subpixels

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.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
86% have it

5. has a HDMI output

Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
61% have it

6. resolution

1920 x 1080px
Dell UltraSharp UP3218K: 7680 x 4320px
2560 x 1440px
1920 x 1080px

7. pixel density

102ppi
Dell UltraSharp UP3218K: 280ppi
108ppi
92ppi

8. supports total tilt

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.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
84% have it

9. has anti-glare

Anti-glare helps to reduce the external reflections of light coming from outside the display.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
28% have it

10. contrast ratio

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.
1000:1
Acer XB0 XB240H 24": 100000000:1
100000000:1
3000:1

11. luminance

Luminance is the intensity of light that a device emits.
250cd/m²
Acer Predator X35 35" UW-UXGA: 1000cd/m²
350cd/m²
250cd/m²

12. has an IPS screen

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.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
33% have it

13. has an LED-backlit display

Uses LED backlighting, resulting in better image quality, more vibrant colors and richer blacks.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
80% have it

14. has a DVI connector

Devices that have a DVI connector (usually computers and notebooks) can be connected to the TV set.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
56% have it

15. HDMI ports

More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.
1
Acer HN274H: 4
2
1

16. power consumption on standby

How much power the device consumes when shut down but still plugged in.
0.5W
Asus MB168B Plus: 0W
0.5W
3W

17. weight

2.3kg
Asus VX278Q 27": 4.5g
7.65kg
12.5kg

18. Supports VESA mount

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.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
70% have it

19. height

302.3mm
Asus VP228N 21.5": 3.9mm
368mm
375mm

20. thickness

224mm
LG 22EA53VQ: 5.5mm
233mm
98mm

21. width

498.1mm
Toshiba PA3923U-2LC3: 340.5mm
625mm
565mm

22. display colors

Number of colors that a display can accurately reproduce.
16.7m
Dell UltraSharp UP2716D 27": 1074m
16.7m
1000m

23. has stereo speakers

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
30% have it

24. has a VGA connector

VGA connector is a widespread connector and is found on many video cards, computer monitors, and some television sets.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
76% have it

25. Has a swivel stand

A swivel stand allows you to adjust the position of the display left or right, so you can position it to the desired angle.
Acer R1 R221Q 21.5"
Asus MG278Q 27"
HP DreamColor LP2480zx
35% have it

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