Samsung Class QN900B 85" review: specs and price

The display resolution represents the amount of pixels that make up the image. It is a key indicator of image quality, with higher resolutions providing sharper and more detailed images.

The type of technology used in the display.

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.

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.

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.

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.

Bluetooth is a wireless technology that allows you to easily transfer data between different devices, such as smartphones, tablets and computers.

Newer versions of HDMI support higher bandwidth, which allows for higher resolutions and frame rates.

More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.

The device can connect to Wi-Fi.

The Wi-Fi versions supported by the device.

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

Bluetooth is a wireless technology standard that allows data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves. Newer versions provide faster data transfers.

With more USB ports, you are able to connect more devices.

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.

If the device supports Dolby Digital it can deliver up to six different audio channels (sides) 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.

Audio output power is based on the number of speakers and their power in watts. High audio output power results in loud, clear sounds.

Devices that support Digital Out can deliver sound through optic fiber audio cables (like TOSLINK) or coaxial audio cables, which can transmit high-resolution audio at fast speeds.

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.

SRS devices create an immersive 3D soundfield using only two speakers, simulating the kind of audio experience delivered by devices that support Dolby Digital.

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

Dolby Atmos is a surround sound technology that allows sounds to be interpreted as three-dimensional objects. By doing so, Dolby Atmos allows for immersive, 360-degree sound.

DTS-HD Master Audio supports unlimited surround sound channels and lossless audio. This standard delivers one of the best possible audio qualities.

The width represents the horizontal dimension 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 thickness (or depth) of the product.

The height represents the vertical dimension of the product.

Volume is the quantity of three-dimensional space enclosed by the product's chassis or, in simpler terms, the space the product occupies.

Devices with height adjustment provide a full range of height possibilities resulting in maximum comfort.

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 maximum temperature at which the device can perform to the optimal level.

The minimum temperature at which the device can perform to the optimal level.

Chromecast built-in is a technology that allows users to stream entertainment and apps from their phone, tablet, or laptop, straight to the Chromecast-enabled device.

AirPlay allows wireless connection of Apple devices with external screens or speakers. You may stream computer screen, video and music from iOS devices, play games like on consoles or present your slideshows easily on your TV.

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.

It is compatible with Google Assistant, allowing you to use voice commands to control the device from other Google Assistant-compatible devices.

It is compatible with Amazon’s Alexa voice assistant, allowing you to use voice commands to control the device from other Alexa-compatible devices.

It is compatible with Apple's Siri voice assistant, allowing you to use voice commands to control the device from other Apple HomeKit-compatible devices.

This technology allows the users to use their smartphone as a remote control for the device.

The remote control is rechargeable, so you don't have to worry about replacing the batteries.

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

A curved screen is designed to better fill a user's field of vision, giving the viewer a sense of being immersed in the image. As our eyes have a natural curvature, these displays can also help to reduce eye strain.

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.

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.

A built-in FM radio tuner allows you to listen to most of the live-broadcasted FM radio stations without using the internet.

You can operate the device easily, by pressing the screen with your fingers.

NFC (near-field communication) allows a device to perform simple wireless transactions, such as mobile payments. Note: this feature may not be available in all markets.