88points

LG 55LM640

84points

Sony XBR X830C 49"

Comparison winner
LG 55LM640
Sony XBR X830C 49"
vs
vs

113 facts in comparison

LG 55LM640 vs Sony XBR X830C 49"

LG 55LM640
Sony XBR X830C 49"

Why is LG 55LM640 better than Sony XBR X830C 49"?

  • 13.4% bigger screen size
    ?

    55"vs48.5"
  • Supports USB recording
    ?
  • 0.2W lower power consumption on standby
    ?

    0.3W vs0.5W
  • Is DLNA-certified
    ?
  • 79W lower power consumption on operation
    ?

    71W vs150W
  • 3.33x higher refresh rate
    ?

    400Hzvs120Hz
  • 26.8mm thinner
    ?

    33.1mmvs59.9mm
  • Has a VGA connector
    ?

Why is Sony XBR X830C 49" better than LG 55LM640?

  • 2.27x higher pixel density
    ?

    90.8ppivs40ppi
  • 4x higher resolution
    ?

    3840 x 2160pxvs1920 x 1080px
  • Supports a remote smartphone
    ?
  • 139mm narrower
    ?

    1.09mvs1.23m
  • Has an HDR10-enabled display
    ?
  • Supports Miracast
    ?
  • Supports Wi-Fi 5 (802.11ac)
    ?
  • 6.9kg lighter
    ?

    14.4kgvs21.3kg

Price comparison

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Design

1.width

1.23m

1.09m

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

21.3kg

14.4kg

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.
3.has a wall bracket
LG 55LM640
Sony XBR X830C 49"
This bracket allows the user to change the viewing angle manually by up to 90 degrees.
4.thickness

33.1mm

59.9mm

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.
5.has an easel stand
LG 55LM640
Sony XBR X830C 49"
This stand allows the user to place the TV in a slightly tilted back position.
6.has a motorised wall bracket
LG 55LM640
Sony XBR X830C 49"
This stand allows the user to change the viewing angle by up to 90 degrees with a remote control.
7.bezel size

Unknown. Help us by suggesting a value. (LG 55LM640)

Unknown. Help us by suggesting a value. (Sony XBR X830C 49")

The bezel size on a device is the extra space that surrounds the actual screen. The smaller it is the more aesthetically pleasing it appears.
8.height adjustment range

Unknown. Help us by suggesting a value. (LG 55LM640)

Unknown. Help us by suggesting a value. (Sony XBR X830C 49")

Devices with height adjustment provide a full range of height possibilities resulting in maximum comfort.
9.thickness with wall bracket

Unknown. Help us by suggesting a value. (LG 55LM640)

Unknown. Help us by suggesting a value. (Sony XBR X830C 49")

The thinner the device, the better (measurements including wall bracket).

Display

1.pixel density

40ppi

90.8ppi

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.has an LED-backlit display
LG 55LM640
Sony XBR X830C 49"
Uses LED backlighting, resulting in better image quality, more vibrant colors and richer blacks.
3.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.
5.Has an OLED or AMOLED display
LG 55LM640
Sony XBR X830C 49"
OLED (Organic Light-Emitting Diode) displays are formed of organic materials that emit light. They have higher contrast ratios and wider viewing angles compared to LCDs. AMOLED and POLED are types of OLED displays.
6.has an HDR10-enabled display
LG 55LM640
Sony XBR X830C 49"
The display supports HDR10, which is an HDR (high dynamic range) video technology. Compared to standard dynamic range (SDR) video, HDR10 video has greater contrast and color depth, resulting in more realistic images.
7.has a display in 24p
LG 55LM640
Sony XBR X830C 49"
A display that supports 24p can display content at the same speed of a screen cinema, for a more cinematic experience.
8.has an IPS screen
LG 55LM640
Sony XBR X830C 49"
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.
9.refresh rate

400Hz

120Hz

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.

Connectivity

1.supports Wi-Fi
LG 55LM640
Sony XBR X830C 49"
The device can connect to Wi-Fi.
More HDMI ports mean that you can simultaneously connect numerous devices, such as video game consoles and set-top boxes.
3.HDMI version

HDMI 1.4

HDMI 2.0

Newer versions of HDMI support higher bandwidth, which allows for higher resolutions and frame rates.
With more USB ports, you are able to connect more devices.
5.supports Wi-Fi 4 (802.11n)
LG 55LM640
Sony XBR X830C 49"
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.
6.is DLNA-certified
LG 55LM640
Sony XBR X830C 49"
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 XBR X830C 49"
Devices that support Miracast can communicate via wi-fi in an open format.
8.has a VGA connector
LG 55LM640
Sony XBR X830C 49"
VGA connector is a widespread connector and is found on many video cards, computer monitors, and some television sets.
9.supports Wi-Fi 5 (802.11ac)
LG 55LM640
Sony XBR X830C 49"
802.11ac wireless works on the 5GHz frequency range. It offers higher transfer rates, improved reliability, and improved power consumption. It provides advantages for gaming and HD video streaming.

Audio

1.supports Dolby Digital
LG 55LM640
Sony XBR X830C 49"
If the device supports Dolby Digital it can deliver up to six different audio channels (sides) for a much better sound quality.
2.has DTS Surround
LG 55LM640
Sony XBR X830C 49"
DTS Surround is a high-quality audio codec that supports up to six audio channels, with good bitrates and audio quality.
3.audio output power

2 x 10W

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.
4.supports Digital Out
LG 55LM640
Sony XBR X830C 49"
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.
5.supports Dolby Digital MS10
LG 55LM640
Sony XBR X830C 49"
If a device supports Dolby Digital MS10 it can decode Dolby Digital and Dolby Digital Plus.
6.supports Dolby Digital Plus
LG 55LM640
Sony XBR X830C 49"
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.
7.has SRS TheaterSound HD
LG 55LM640
Sony XBR X830C 49"
SRS devices create an immersive 3D soundfield using only two speakers, simulating the kind of audio experience delivered by devices that support Dolby Digital.
8.has stereo speakers
LG 55LM640
Sony XBR X830C 49"
Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
9.has auto volume
LG 55LM640
Sony XBR X830C 49"
This technology adjusts the volume of the device according with what the video player needs.

Features

1.supports a remote smartphone
LG 55LM640
Sony XBR X830C 49"
This technology allows the users to use their smartphone as a remote control for the device.
2.supports USB recording
LG 55LM640
Sony XBR X830C 49"
USB recording is the capacity of the device to record content into plugged in USB devices.
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.
5.has a sleep timer
LG 55LM640
Sony XBR X830C 49"
A sleep timer is a function that shuts off the power after a preset amount of time.
6.has time shift
LG 55LM640
Sony XBR X830C 49"
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.
7.has a search browser
LG 55LM640
Sony XBR X830C 49"
With a search browser app, you can surf the internet from your device.
8.has a child lock
LG 55LM640
Sony XBR X830C 49"
A child lock enables adults to prevent or restrict children’s use of the device.
9.annual power consumption

104kWh

Unknown. Help us by suggesting a value. (Sony XBR X830C 49")

The more power per year a device consumes, the less energy efficient it is, making it more costly over time.

Miscellaneous

1.has a 24p cinema mode
LG 55LM640
Sony XBR X830C 49"
24p is a video format (24 frames per second) traditionally used in cinema. Nowadays, it is used to create film-like motion characteristics.

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