92points

LG 55LM640

39points

Sony 4K Ultra HD

Comparison winner
LG 55LM640
Sony 4K Ultra HD
vs
vs

40 facts in comparison

LG 55LM640 vs Sony 4K Ultra HD

LG 55LM640
Sony 4K Ultra HD

Why is LG 55LM640 better than Sony 4K Ultra HD?

  • Supports USB recording
    ?
  • Supports Dolby Digital
    ?
  • 907mm narrower
    ?

    1.23mvs2139mm
  • 155kg lighter
    ?

    21.3kgvs176300g
  • Has a sleep timer
    ?
  • Supports Wi-Fi 4 (802.11n)
    ?
  • Has a VGA connector
    ?
  • Has time shift
    ?

Why is Sony 4K Ultra HD better than LG 55LM640?

  • 30% higher pixel density
    ?

    52ppivs40ppi
  • 4x higher resolution
    ?

    3840 x 2160pxvs1920 x 1080px
  • 1.53x bigger screen size
    ?

    84"vs55"
  • Supports a remote smartphone
    ?
  • Has a subwoofer
    ?
  • Has micro or local dimming
    ?
  • Supports Miracast
    ?
  • Has Skype app
    ?

Price comparison

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Design

1.supports a remote smartphone
LG 55LM640
Sony 4K Ultra HD
This technology allows the users to use their smartphone as a remote control for the device.
2.width

1.23m

2.14m

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

21.3kg

176.3kg

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.
4.height

723mm

1.14m

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

Display

1.pixel density

40ppi

52ppi

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.
2.resolution

1920 x 1080px

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.
The bigger the screen size is, the better the user experience.
4.has an LED-backlit display
LG 55LM640
Sony 4K Ultra HD
Uses LED backlighting, resulting in better image quality, more vibrant colors and richer blacks.
5.refresh rate

400Hz

240Hz

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.
6.has an ambient light sensor
LG 55LM640
Sony 4K Ultra HD
An ambient light sensor adjusts the luminance of the device according to the amount of natural light that surrounds it.
7.has anti-reflection coating
LG 55LM640
Sony 4K Ultra HD
This helps to reduce the reflection from your device.
8.has micro or local dimming
LG 55LM640
Sony 4K Ultra HD
Local dimming is when sections of the LED array are turned off or dimmed to help produce the deep blacks and higher contrasts.
9.displays 3D with glasses
LG 55LM640
Sony 4K Ultra HD
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.

Connectivity

1.supports Wi-Fi
LG 55LM640
Sony 4K Ultra HD
The device can connect to Wi-Fi.
Newer versions of HDMI support higher bandwidth, which allows for higher resolutions and frame rates.
3.supports Wi-Fi 4 (802.11n)
LG 55LM640
Sony 4K Ultra HD
Wi-Fi 4 (802.11n) is a wireless standard released in 2009. It has faster transfer rates and improved security compared to its predecessors – a, b, and g.
4.has a VGA connector
LG 55LM640
Sony 4K Ultra HD
VGA connector is a widespread connector and is found on many video cards, computer monitors, and some television sets.
5.supports common interface
LG 55LM640
Sony 4K Ultra HD
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).
6.is DLNA-certified
LG 55LM640
Sony 4K Ultra HD
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.
7.supports Miracast
LG 55LM640
Sony 4K Ultra HD
Devices that support Miracast can communicate via wi-fi in an open format.
8.has a DVB-T2 decoder
LG 55LM640
Sony 4K Ultra HD
A DVB-T2 is the newer version of Digital Video Broadcasting which is a digital version of cable television.
9.has a DVB-S2 decoder
LG 55LM640
Sony 4K Ultra HD
A DVB-S2 is the successor of the DVB-S Digital Video Broadcasting via Satellite.

Audio

1.supports Dolby Digital
LG 55LM640
Sony 4K Ultra HD
If the device supports Dolby Digital it can deliver up to six different audio channels (sides) for a much better sound quality.
2.has stereo speakers
LG 55LM640
Sony 4K Ultra HD
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
3.supports Dolby Digital MS10
LG 55LM640
Sony 4K Ultra HD
If a device supports Dolby Digital MS10 it can decode Dolby Digital and Dolby Digital Plus.
4.has SRS TheaterSound HD
LG 55LM640
Sony 4K Ultra HD
SRS devices create an immersive 3D soundfield using only two speakers, simulating the kind of audio experience delivered by devices that support Dolby Digital.
5.has a subwoofer
LG 55LM640
Sony 4K Ultra HD
Devices with a subwoofer have a higher quality, deeper bass.
6.supports Digital Out
LG 55LM640
Sony 4K Ultra HD
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.
7.has a multi-room audio system
LG 55LM640
Sony 4K Ultra HD
This allows users to have an audio/video setup as the master, and play music in other rooms that are included in the Master Link Setup.

Features

1.supports USB recording
LG 55LM640
Sony 4K Ultra HD
USB recording is the capacity of the device to record content into plugged in USB devices.
2.has a sleep timer
LG 55LM640
Sony 4K Ultra HD
A sleep timer is a function that shuts off the power after a preset amount of time.
3.has time shift
LG 55LM640
Sony 4K Ultra HD
This function allows the user to record and program a file to a storage medium (dvd player or usb) to be viewed or listened at a more convenient time.
4.has a search browser
LG 55LM640
Sony 4K Ultra HD
With a search browser app, you can surf the internet from your device.
5.has a child lock
LG 55LM640
Sony 4K Ultra HD
A child lock enables adults to prevent or restrict children’s use of the device.
6.supports two-player full-screen gaming
LG 55LM640
Sony 4K Ultra HD
With this function, both players can see their own game in full-screen simultaneously by wearing special glasses.

Miscellaneous

1.has a 24p cinema mode
LG 55LM640
Sony 4K Ultra HD
24p is a video format (24 frames per second) traditionally used in cinema. Nowadays, it is used to create film-like motion characteristics.
2.has a BSI sensor
LG 55LM640
Sony 4K Ultra HD
A BSI (backside illuminated) sensor is a camera image sensor which captures better quality images in poor lighting conditions, and offers better overall sharpness and image quality.
3.Has Skype app
LG 55LM640
Sony 4K Ultra HD
A TV set with the Skype app allows connecting with other people from your device.

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