Acer p191wAcer R1 R221Q 21.5"
Top 47%51 points
Top 47%
Top 21%76 points
Top 21%
Acer p191w
Acer R1 R221Q 21.5"
vs
Top specs and features

Acer p191w vs Acer R1 R221Q 21.5": 36 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.

2. 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 p191w
Acer R1 R221Q 21.5"
85% have it

3. power consumption operation

How much power the device consumes when it's switched on.

4. screen size

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

5. has a HDMI output

Devices with a HDMI or mini HDMI port can transfer high definition video and audio to a display.
Acer p191w
Acer R1 R221Q 21.5"
60% have it

6. contrast ratio

Contrast ratio is the visual distance between the lightest and the darkest colour that may be reproduced on the display. A high contrast ratio is desired, resulting in richer dark colours and more distinctive color gradation.

7. 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 p191w
Acer R1 R221Q 21.5"
84% have it

8. weight

3.6kg lighter.

9. 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 p191w
Acer R1 R221Q 21.5"
33% have it

10. has a DVI connector

Devices that have a DVI connector (usually computers and notebooks) can be connected to the TV set.
Acer p191w
Acer R1 R221Q 21.5"
56% have it

11. luminance

Luminance is the intensity of light that a device emits.
250cd/m²

12. resolution

37.5% higher resolution.

13. height

83.7mm shorter.

14. supports swivel

Swivel is the ability for the monitor head to be rotated left or right. This enables users to share screen images without causing visual distortion.
Acer p191w
Acer R1 R221Q 21.5"
34% have it

15. has a VGA connector

VGA connector is a widespread connector and is found on many video cards, computer monitors, and some television sets.
Acer p191w
Acer R1 R221Q 21.5"
76% have it

16. has stereo speakers

Devices with stereo speakers deliver sound that surrounds the user from left and right side, creating a richer sound and a better experience.
Acer p191w
Acer R1 R221Q 21.5"
29% have it

17. displays 3D with glasses

The device displays 3D images which you can only see with special 3D glasses. Unlike glasses-free 3D displays, the screens of these devices have larger viewing angles.
Acer p191w
Acer R1 R221Q 21.5"
4% have it

18. thickness

44mm thinner.

19. width

36.1mm narrower.

20. has LED-backlit display

Uses LED backlighting, resulting in better image quality, more vibrant colours and richer blacks.
Acer p191w
Acer R1 R221Q 21.5"
79% have it

21. 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 p191w
Acer R1 R221Q 21.5"
70% have it

22. has DTS Surround

DTS Surround is a high-quality audio codec that supports up to six audio channels, with good bitrates and audio quality.
Acer p191w
Acer R1 R221Q 21.5"
2% have it

23. supports Dolby Digital

If the device supports Dolby Digital it can deliver up to six different audio channels (sides) for a much better sound quality.
Acer p191w
Acer R1 R221Q 21.5"
1% have it

24. supports portrait mode

The screen can be turned into portrait mode which is better to view isolated images like documents, photos, etc.
Acer p191w
Acer R1 R221Q 21.5"
11% have it

25. has an external memory slot

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.
Acer p191w
Acer R1 R221Q 21.5"
2% have it

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