65 facts in comparison
Asus VP228NE 21.5" vs HP E221
Asus VP228NE 21.5"
HP E221
Why is Asus VP228NE 21.5" better than HP E221?
- 6.2ms faster response time?
1msvs7.2ms - Supports VESA mount?
- 14.9W lower power consumption on operation?
21.1W vs36W - 151mm shorter?
309mmvs460mm - 2.14kg lighter?
3.5kgvs5.64kg
Why is HP E221 better than Asus VP228NE 21.5"?
- 50 nits brighter?
250 nitsvs200 nits - Has a swivel stand?
- 80º wider horizontal viewing angle?
170ºvs90º - 95º wider vertical viewing angle?
160ºvs65º - 148.4mm thinner?
51mmvs199.4mm
Which are the most popular comparisons?
Price comparison
User reviews
Display
The type of technology used in the display.
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.
The size of the screen (measured diagonally).
Resolution is an essential indicator of a screen's image quality, representing the maximum amount of pixels that can be shown on the screen. The resolution is given as a compound value, comprised of horizontal and vertical pixels.
Pixel density is a measurement of a screen's resolution, expressed as the number of pixels per inch (PPI) on the screen. A higher pixel density translates into more clarity and sharpness for the images rendered on the screen, thus improving the quality of the viewing experience.
Adaptive synchronization
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
The type of adaptive synchronization technology supported.
Anti-glare helps to reduce the external reflections of light coming from outside the display.
refresh rate
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
The frequency at which the screen is refreshed. Higher frequency results in less flickering (less noise) and more natural movement representation in action-intense scenes.
Horizontal viewing angle is the maximum angle at which a display can be viewed with acceptable visual performance.
General info
Type
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
The type of monitor.
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.
A swivel stand allows you to adjust the position of the display left or right, so you can position it to the desired angle.
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.
The height represents the vertical dimension of the product.
The width represents the horizontal dimension of the product.
The thickness (or depth) of the product.
We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
The screen can be turned into portrait mode which is better to view isolated images like documents, photos, etc.
Colors
A nit is a measurement of the light that a display emits, equal to one candela per square meter. Brighter displays ensure a screen's contents are easy to read, even in sunny conditions.
A properly calibrated screen represents colors as they are and i.e. you can conduct a photo shoot while verifying your photos in real time. An internal sensor and/or colorimeter is usually included for trouble-free calibration.
Number of colors that a display can accurately reproduce.
Bit depth is the number of bits used to indicate the color of a single pixel. The more bits, the more color range a panel displays. An 8-bit panel uses 256 levels per channel and displays 16.7 million colors, while a 10-bit one reaches 1024 and displays 1.07 billion colors.
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.
Adobe RGB coverage
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
This shows the percentage of Adobe RGB covered by the device.
sRGB coverage
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
The percentage of the sRGB color space that the device covers. sRGB is an RGB color space that HP and Microsoft created to use on monitors, printers, and the Web.
Connectivity
HDMI ports
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.
Thunderbolt is a connection over cable that carries both data and display signals over a single cable, while simultaneously providing power.
DisplayPort outputs
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
Allows you to connect to a display using DisplayPort.
With a standard mini jack socket, you can use the device with most headphones.
Devices that have a DVI connector (usually computers and notebooks) can be connected to the TV set.
With more USB ports, you are able to connect more devices.
USB version
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
Newer USB versions are faster and have better power management.
The USB Type-C features reversible plug orientation and cable direction.
HDMI version
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
Newer versions of HDMI support higher bandwidth, which allows for higher resolutions and frame rates.
Power
How much power the device consumes when it's switched on.
The power consumption in standby mode, also called energy-saving mode, measures the amount of power the device consumes when shut down but still plugged in.
annual power consumption
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
The more power per year a device consumes, the less energy efficient it is, making it more costly over time.
Features
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.
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
Devices with built-in smart TV features (such as Android TV or webOS) allow you to access popular streaming apps without the need to purchase/connect a separate smart TV device.
audio output power
Unknown. Help us by suggesting a value. (Asus VP228NE 21.5")
Unknown. Help us by suggesting a value. (HP E221)
Audio output power is based on the number of speakers and their power in watts. High audio output power results in loud, clear sounds.
A remote control allows you to control the device remotely. The remote control can be included or optional.
If the device supports Dolby Digital it can deliver up to six different audio channels (sides) for a much better sound quality.
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.
DTS Surround is a high-quality audio codec that supports up to six audio channels, with good bitrates and audio quality.
An ambient light sensor adjusts the luminance of the device according to the amount of natural light that surrounds it.
Miscellaneous
It supports displaying 3D images from devices such as a 3D-compatible Blu-ray player, allowing you to watch films in 3D when using suitable glasses.
The device can display 3D images without the need for wearing special glasses. The display's special construction allows viewers to get a sense of an image's depth by tailoring its position to fit the user's perspective.
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