Dell S2240L vs 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.

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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.

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The gross weight of the product when packaged, including all wrapping, and boxing.

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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.

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

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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. PLS (Plane to Line Switching) is a type of IPS screen developed by Samsung, which has increased brightness and lower production costs.

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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.

Luminance is the intensity of light that a device emits.

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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.

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An ambient light sensor adjusts the luminance of the device according to the amount of natural light that surrounds it.

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

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

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.

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

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How much power the device consumes when shut down but still plugged in.

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A sleep timer is a function that shuts off the power after a preset amount of time.

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.