Panasonic Viera TX-40CXW804

Panasonic Viera TX-40CXW804

Panasonic Viera TX-40CXW804 review: specs and price

Panasonic Viera TX-40CXW804
Panasonic Viera TX-40CXW804

Why is Panasonic Viera TX-40CXW804 better than the average?

  • Pixel density

  • Resolution

    3840 x 2160pxvs5.25MP
  • Width

  • USB ports

  • Operating power consumption

    74W vs158.55W
  • Weight

  • Thickness

  • Shipping weight


Price comparison




The width represents the horizontal dimension of the product. We consider a smaller width better because it assures easy maneuverability.


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.


We consider a thinner chassis better because it makes the product more compact and portable. Thinness is a feature highlighted by many manufacturers of mobile devices, but it is essential for a wide range of products.
4.shipping weight


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


The height represents the vertical dimension of the product. We consider a smaller height better because it assures easy maneuverability.


1.pixel density


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.

3840 x 2160px

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.
3.screen size


The bigger the screen size is, the better the user experience.
4.has an LED-backlit display
Panasonic Viera TX-40CXW804
Uses LED backlighting, resulting in better image quality, more vibrant colors and richer blacks.
5.has an IPS screen
Panasonic Viera TX-40CXW804
IPS (In-Plane Switching) is a technology used for LCDs. It was designed to overcome the main limitations of conventional twisted nematic TFT displays: limited viewing angles and low-quality color reproduction. PLS (Plane-to-Line Switching) is a type of IPS screen developed by Samsung, with increased brightness and lower production costs.
6.has an ambient light sensor
Panasonic Viera TX-40CXW804
An ambient light sensor adjusts the luminance of the device according to the amount of natural light that surrounds it.


1.supports Wi-Fi
Panasonic Viera TX-40CXW804
The device can connect to Wi-Fi.
2.USB ports


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


More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.
4.is DLNA-certified
Panasonic Viera TX-40CXW804
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.
5.composite ports


The more composite ports a device has, the more devices can be simultaneously connected, such as video game consoles and set-top boxes.
6.SCART ports


The number of SCART ports determines how many devices can be connected simultaneously, for instance video game consoles and set-top-boxes.


1.supports Dolby Digital
Panasonic Viera TX-40CXW804
If the device supports Dolby Digital it can deliver up to six different audio channels (sides) for a much better sound quality.
2.supports Dolby Digital Plus
Panasonic Viera TX-40CXW804
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.
3.has stereo speakers
Panasonic Viera TX-40CXW804
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
4.audio output power

2 x 10W

Audio output power is based on the number of speakers and their power in watts. High audio output power results in loud, clear sounds.
5.supports Digital Out
Panasonic Viera TX-40CXW804
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.


1.supports USB recording
Panasonic Viera TX-40CXW804
USB recording is the capacity of the device to record content into plugged in USB devices.
2.operating power consumption


How much power the device consumes when it's switched on.
3.supports a remote smartphone
Panasonic Viera TX-40CXW804
This technology allows the users to use their smartphone as a remote control for the device.
4.supports common interface
Panasonic Viera TX-40CXW804
This is a technology which allows separation of the TV screen and the decoder. It is used for pay-to-view TV (like Apple TV).
5.annual power consumption


The more power per year a device consumes, the less energy efficient it is, making it more costly over time.
6.has a search browser
Panasonic Viera TX-40CXW804
With a search browser app, you can surf the internet from your device.


1.power consumption in standby mode


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.

Price comparison

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