LG 55UF6450 vs Samsung UN55HU6840 vs VIZIO D58u-D3

LG 55UF6450
Samsung UN55HU6840
VIZIO D58u-D3

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Reasons For

3 Reasons For
50% higher RMS rated power Edit
The LG 55UF6450 is a 20WW RMS rated power TV, and so does the Samsung UN55HU6840. That's 10W higher than the VIZIO D58u-D3 (10WW). Read more

RMS rated power stands for Root Mean Square rated power and it is typically used to measure the power output of the audio element of the TV.

A higher RMS rated power means that the audio system on the TV is more powerful and will be able to play the audio at higher volumes. A higher RMS power may also result in better quality audio at normal volume levels.

Two more processor cores Edit
The LG 55UF6450 has four processor cores, however the VIZIO D58u-D3 only has two processor cores. Read more

We do not know the number of processor cores on the Samsung UN55HU6840. It is possible that it does not have any processor cores.

Thinner Edit
The LG 55UF6450 has a thickness of 50.8mmmm, and so does the Samsung UN55HU6840. That's 20.32mm thinner than the VIZIO D58u-D3 (71.12mmmm). Read more

The depth of the TV is the thickness of the TV measured from the back of the TV to the front of the TV. Curved TVs will have quite a big depth as this dimension is measured from the back of the centre of the screen to the front of the edges of the screen.

A thinner TV has the advantage of appearing more elegant and will also mean that the TV will not stick out as much when mounted on a wall.

6 Reasons For
Faster motion interpolation frequency Edit
The Samsung UN55HU6840 is a 240HzHz motion interpolation frequency TV. That's 120Hz faster than the LG 55UF6450 (). Read more

The motion interpolation frequency is the frame rate which the TV is able to artificially create by inserting additional frames into the picture between the frames included in the original video source. Motion interpolation technology can sometimes create some unwanted side effects such glitches when the technology suddenly activates during an action scene. Most modern TVs will have an option to switch off the motion interpolation if it is not desired.

A faster motion interpolation frequency will result in smoother action scenes, less motion blur and a more life like image.

10W higher RMS rated power Edit
The Samsung UN55HU6840 has an RMS rated power of 20WW (as does the LG 55UF6450), but the VIZIO D58u-D3 is only a 10WW RMS rated power TV (10W lower). Read more

RMS rated power stands for Root Mean Square rated power and it is typically used to measure the power output of the audio element of the TV.

A higher RMS rated power means that the audio system on the TV is more powerful and will be able to play the audio at higher volumes. A higher RMS power may also result in better quality audio at normal volume levels.

One more RF port Edit
The number of RF ports on the Samsung UN55HU6840 is two, but the VIZIO D58u-D3 only has one RF port. Read more

RF stands for Radio Frequency and an RF port is an older type of input connector for TVs which is most commonly use for connecting cable TV and satellite TV feeds directly to the TV.

Multiple RF ports will allow you to connect multiple RF feeds to the TV at the same time. For example, if the TV has a built in satellite TV decoder then you could connect 2 different satellite dishes to the TV.

Three USB 2.0 ports Edit
The Samsung UN55HU6840 is a three USB 2.0 port TV, whereas the VIZIO D58u-D3 only has one USB 2.0 port. Read more

USB ports are useful for displaying on your TV photos / videos or playing music that is stored on USB key drives. The USB port can also be used for charging devices from your TV (as long as it's switched on), and for installing software updates on the TV.

More USB ports will allow you to connect more USB devices to the TV simultaneously without needing to continuous plug in and unplug cables.

A lot thinner Edit
Samsung UN55HU6840 is 50.8mmmm thick (as does the LG 55UF6450), but the VIZIO D58u-D3 is a 71.12mmmm thick TV (20.32mm thicker). Read more

The depth of the TV is the thickness of the TV measured from the back of the TV to the front of the TV. Curved TVs will have quite a big depth as this dimension is measured from the back of the centre of the screen to the front of the edges of the screen.

A thinner TV has the advantage of appearing more elegant and will also mean that the TV will not stick out as much when mounted on a wall.

9% lighter Edit
The Samsung UN55HU6840 is a 16.8kgg heavy TV. That's 0.9g lighter than the LG 55UF6450 (18.3kgg) and 1.5g lighter than the VIZIO D58u-D3 (18.3kgg). Read more

The weight is the total weight of the TV excluding all packaging.

A lighter weight TV will be easier to move around and to mount on a wall. Some of the larger, very heavy TVs may require lightweight partition walls to be reinforced before the TV could be mounted.

2 Reasons For
Slightly larger screen size Edit
The VIZIO D58u-D3 has a screen size of 57.5"", however the LG 55UF6450 is only a 55"" TV (2.5" smaller) and the Samsung UN55HU6840 is only a 54.6"" TV (2.9" smaller). Read more

The display diagonal of a TV is the most common measure of screen size and is the distance from the top left to the bottom right of the visible part of a TV screen excluding any frame or border. One of the most important considerations when choosing the right screen size for your TV is the typical distance from which you will be viewing the screen. A good rule of thumb is to multiply the display diagonal by 2.5 to determine the viewing distance. So a 40 inch TV is best viewed from 100 inches away, which is equivalent to 8.3 feet or 2.54m. For home cinema setups and a truly immersive experience this ratio can be reduced to 1.2. This will give a screen size that fills 40 degrees of the viewer's field of vision. So if you viewing from a distance of 6ft (72 inches) you would need a TV display diagonal of 60 inches.

TVs with a bigger display diagonal allow you to make the most of HD content and are great for watching movies.

Five HDMI ports Edit
The number of HDMI ports on the VIZIO D58u-D3 is five, but the LG 55UF6450 only has three HDMI ports and the Samsung UN55HU6840 only has four HDMI ports. Read more

The HDMI ports quantity is the number of ports that the TV has that will accept a HDMI cable. HDMI is the most common type of cable used to connect modern TVs, DVD players, games consoles etc.

A greater number of HDMI ports will allow you to permanently connect more devices to the TV and will reduce the need to reach around the back of the TV to unplug and plug in cables when switching between devices.

Reasons Against

7 Reasons Against
2.5" smaller screen size Edit
The LG 55UF6450 has a screen size of 55"", but the Samsung UN55HU6840 is a 54.6"" TV (0.4" smaller) and the VIZIO D58u-D3 is a 57.5"" TV (2.5" larger). Read more

The display diagonal of a TV is the most common measure of screen size and is the distance from the top left to the bottom right of the visible part of a TV screen excluding any frame or border. One of the most important considerations when choosing the right screen size for your TV is the typical distance from which you will be viewing the screen. A good rule of thumb is to multiply the display diagonal by 2.5 to determine the viewing distance. So a 40 inch TV is best viewed from 100 inches away, which is equivalent to 8.3 feet or 2.54m. For home cinema setups and a truly immersive experience this ratio can be reduced to 1.2. This will give a screen size that fills 40 degrees of the viewer's field of vision. So if you viewing from a distance of 6ft (72 inches) you would need a TV display diagonal of 60 inches.

TVs with a bigger display diagonal allow you to make the most of HD content and are great for watching movies.

Vastly slower motion interpolation frequency Edit
The LG 55UF6450 has a motion interpolation frequency of 120HzHz, however the Samsung UN55HU6840 is a 240HzHz motion interpolation frequency TV (120Hz faster). Read more

The motion interpolation frequency is the frame rate which the TV is able to artificially create by inserting additional frames into the picture between the frames included in the original video source. Motion interpolation technology can sometimes create some unwanted side effects such glitches when the technology suddenly activates during an action scene. Most modern TVs will have an option to switch off the motion interpolation if it is not desired.

A faster motion interpolation frequency will result in smoother action scenes, less motion blur and a more life like image.

Only one RF port Edit
The LG 55UF6450 has one RF port, and so does the VIZIO D58u-D3, however the Samsung UN55HU6840 only has two RF ports. Read more

RF stands for Radio Frequency and an RF port is an older type of input connector for TVs which is most commonly use for connecting cable TV and satellite TV feeds directly to the TV.

Multiple RF ports will allow you to connect multiple RF feeds to the TV at the same time. For example, if the TV has a built in satellite TV decoder then you could connect 2 different satellite dishes to the TV.

Two less USB 2.0 ports Edit
The number of USB 2.0 ports on the LG 55UF6450 is one (as does the VIZIO D58u-D3), but the Samsung UN55HU6840 only has three USB 2.0 ports. Read more

USB ports are useful for displaying on your TV photos / videos or playing music that is stored on USB key drives. The USB port can also be used for charging devices from your TV (as long as it's switched on), and for installing software updates on the TV.

More USB ports will allow you to connect more USB devices to the TV simultaneously without needing to continuous plug in and unplug cables.

Only three HDMI ports Edit
The LG 55UF6450 is a three HDMI port TV, whereas the Samsung UN55HU6840 only has four HDMI ports and the VIZIO D58u-D3 only has five HDMI ports. Read more

The HDMI ports quantity is the number of ports that the TV has that will accept a HDMI cable. HDMI is the most common type of cable used to connect modern TVs, DVD players, games consoles etc.

A greater number of HDMI ports will allow you to permanently connect more devices to the TV and will reduce the need to reach around the back of the TV to unplug and plug in cables when switching between devices.

A bit heavier Edit
LG 55UF6450 is 17.7kgg heavy, but the Samsung UN55HU6840 is a 16.8kgg heavy TV (0.9g lighter) and the VIZIO D58u-D3 is an 18.3kgg heavy TV (0.6g heavier). Read more

The weight is the total weight of the TV excluding all packaging.

A lighter weight TV will be easier to move around and to mount on a wall. Some of the larger, very heavy TVs may require lightweight partition walls to be reinforced before the TV could be mounted.

Older by three months
The LG 55UF6450 is three months older than the VIZIO D58u-D3.
4 Reasons Against
Smaller screen size Edit
The Samsung UN55HU6840 is a 54.6"" TV. That's 0.4" smaller than the LG 55UF6450 (57.5"") and 2.9" smaller than the VIZIO D58u-D3 (57.5""). Read more

The display diagonal of a TV is the most common measure of screen size and is the distance from the top left to the bottom right of the visible part of a TV screen excluding any frame or border. One of the most important considerations when choosing the right screen size for your TV is the typical distance from which you will be viewing the screen. A good rule of thumb is to multiply the display diagonal by 2.5 to determine the viewing distance. So a 40 inch TV is best viewed from 100 inches away, which is equivalent to 8.3 feet or 2.54m. For home cinema setups and a truly immersive experience this ratio can be reduced to 1.2. This will give a screen size that fills 40 degrees of the viewer's field of vision. So if you viewing from a distance of 6ft (72 inches) you would need a TV display diagonal of 60 inches.

TVs with a bigger display diagonal allow you to make the most of HD content and are great for watching movies.

One less HDMI port Edit
The Samsung UN55HU6840 has four HDMI ports, however the VIZIO D58u-D3 only has five HDMI ports. Read more

The HDMI ports quantity is the number of ports that the TV has that will accept a HDMI cable. HDMI is the most common type of cable used to connect modern TVs, DVD players, games consoles etc.

A greater number of HDMI ports will allow you to permanently connect more devices to the TV and will reduce the need to reach around the back of the TV to unplug and plug in cables when switching between devices.

Not currently available
This TV does not seem to be currently available. Read more
You can sign up to a price alert to be notified when this product becomes available.
Over one year older
The Samsung UN55HU6840 is older than the LG 55UF6450 by ten months and older than the VIZIO D58u-D3 by 13 months.
7 Reasons Against
10W lower RMS rated power Edit
The VIZIO D58u-D3 is a 10WW RMS rated power TV. That's 10W lower than the LG 55UF6450 and the Samsung UN55HU6840 (10WW). Read more

RMS rated power stands for Root Mean Square rated power and it is typically used to measure the power output of the audio element of the TV.

A higher RMS rated power means that the audio system on the TV is more powerful and will be able to play the audio at higher volumes. A higher RMS power may also result in better quality audio at normal volume levels.

Only one RF port Edit
The VIZIO D58u-D3 is a one RF port TV, and so does the LG 55UF6450, whereas the Samsung UN55HU6840 only has two RF ports. Read more

RF stands for Radio Frequency and an RF port is an older type of input connector for TVs which is most commonly use for connecting cable TV and satellite TV feeds directly to the TV.

Multiple RF ports will allow you to connect multiple RF feeds to the TV at the same time. For example, if the TV has a built in satellite TV decoder then you could connect 2 different satellite dishes to the TV.

Two less USB 2.0 ports Edit
The VIZIO D58u-D3 has one USB 2.0 port (as does the LG 55UF6450), however the Samsung UN55HU6840 only has three USB 2.0 ports. Read more

USB ports are useful for displaying on your TV photos / videos or playing music that is stored on USB key drives. The USB port can also be used for charging devices from your TV (as long as it's switched on), and for installing software updates on the TV.

More USB ports will allow you to connect more USB devices to the TV simultaneously without needing to continuous plug in and unplug cables.

Two less processor cores Edit
The VIZIO D58u-D3 is a two processor core TV, whereas the LG 55UF6450 only has four processor cores. Read more

We do not know the number of processor cores on the Samsung UN55HU6840. It is possible that it does not have any processor cores.

29% thicker Edit
The VIZIO D58u-D3 is a 71.12mmmm thick TV. That's 20.32mm thicker than the LG 55UF6450 and the Samsung UN55HU6840 (71.12mmmm). Read more

The depth of the TV is the thickness of the TV measured from the back of the TV to the front of the TV. Curved TVs will have quite a big depth as this dimension is measured from the back of the centre of the screen to the front of the edges of the screen.

A thinner TV has the advantage of appearing more elegant and will also mean that the TV will not stick out as much when mounted on a wall.

1.5g heavier Edit
The VIZIO D58u-D3 has a weight of 18.3kgg, however the LG 55UF6450 is a 17.7kgg heavy TV (0.6g lighter) and the Samsung UN55HU6840 is a 16.8kgg heavy TV (1.5g lighter). Read more

The weight is the total weight of the TV excluding all packaging.

A lighter weight TV will be easier to move around and to mount on a wall. Some of the larger, very heavy TVs may require lightweight partition walls to be reinforced before the TV could be mounted.

Not currently available
We couldn't find any retailers that are currently selling the product. Read more
You can sign up to a price alert to be notified when this product becomes available.

Date Released

14 months Ago 25 months Ago 12 months Ago

Display

Screen Size
55" 54.6" 57.5"
BEST
HD Type
 4K Ultra HD
 4K Ultra HD
 4K Ultra HD
LED Backlighting
 Full-Array
 Full-Array
 Full-Array
Screen Shape
 Flat
 Flat
 Flat
Motion Interpolation Frequency
120Hz 240Hz
BEST
Unknown - Click to provide data
Motion Interpolation Technology
 TruMotion
 TruMotion
 TruMotion
Dynamic Contrast Ratio
 5000000:1
 5000000:1
 5000000:1
BEST
Video Mode
 2160p
 1080p
 2160p
 1080p
 2160p
 1080p
BEST
Display Refresh Rate
 120 Hz
 120 Hz
 120 Hz
BEST
Horizontal Viewing Angle
Unknown - Click to provide data Unknown - Click to provide data 176°
Graphics Resolution
 3840 x 2160
BEST
 3840 x 2160
BEST
 3840 x 2160
Vertical Viewing Angle
Unknown - Click to provide data Unknown - Click to provide data 176°

TV Tuner

Digital Signal Format System
 ATSC
 ATSC
 ATSC
Tuner
 Analog
 Analog
 Analog
Analog Signal Format System
 ATSC
 ATSC
 ATSC

Smart TV

App
 Facebook
 Twitter
 Facebook
 Twitter
 Facebook
 Twitter
BEST
Video App
 YouTube
 NetFlix
 YouTube
 NetFlix
 YouTube
 NetFlix
Music App
 Spotify
 Pandora
 Spotify
 Pandora
 Spotify
 Pandora
Operating System Version
2.0 Unknown - Click to provide data Unknown - Click to provide data
Operating System
 Web OS
 Web OS
 Web OS

Audio

Audio System
Unknown - Click to provide data HD Unknown - Click to provide data
RMS Rated Power
20W
BEST
20W
BEST
10W
Loudspeaker
2 2 2
Dolby Technology
 Digital
 DTS
 DTS Premium Sound 5.1
 DTS Studio Sound
 Dolby MS11
 Digital
 DTS
 DTS Premium Sound 5.1
 DTS Studio Sound
 Dolby MS11
 Digital
 DTS
 DTS Premium Sound 5.1
 DTS Studio Sound
 Dolby MS11
Audio Decoder
 Dolby Digital
 DTS
 Dolby Digital
 DTS
 Dolby Digital
 DTS
Audio Decoding Technology
 DTS Premium Sound 5.1
 DTS Studio Sound
 Dolby MS11
 DTS Premium Sound 5.1
 DTS Studio Sound
 Dolby MS11
 DTS Premium Sound 5.1
 DTS Studio Sound
 Dolby MS11

Ports & Interfaces

Ethernet LAN Port
1 1 1
RF Port
1 2
BEST
1
Digital Audio Optical Out Port
1 1 1
Composite Video in Port
1 Unknown - Click to provide data 1
Component Video in Port
1 1 1
USB 2.0 Port
1 3
BEST
1
HDMI Port
3 4 5
BEST
Consumer Electronics Control
 SimpLink
 SimpLink
 SimpLink
Remote Output Port
Unknown - Click to provide data 1 Unknown - Click to provide data
Audio in Port
Unknown - Click to provide data 1 Unknown - Click to provide data
Audio Out Port
Unknown - Click to provide data Unknown - Click to provide data 1
Composite Video Out Port
Unknown - Click to provide data 1 Unknown - Click to provide data

Networking

WiFi Standard
 802.11ac
 802.11a
 802.11ac
 802.11a
 802.11ac
 802.11a
BEST

Management Features

On Screen Display Language
 ENG
 FRE
 ESP
 ENG
 FRE
 ESP
 ENG
 FRE
 ESP
OSD Language
Unknown - Click to provide data 3 3

Performance

Video Format
 DIVX
 TS
 MTS
 DIVX HD
 DIVX
 TS
 MTS
 DIVX HD
 DIVX
 TS
 MTS
 DIVX HD
Audio Format
 MP2
 MP3
 WMA
 AC3
 PCM
 eAAC+
 HE-AAC
 RA-Lossless
 EAC3
 HE-A
 AAC++
 MP2
 MP3
 WMA
 AC3
 PCM
 eAAC+
 HE-AAC
 RA-Lossless
 EAC3
 HE-A
 AAC++
 MP2
 MP3
 WMA
 AC3
 PCM
 eAAC+
 HE-AAC
 RA-Lossless
 EAC3
 HE-A
 AAC++
Image Format
 JPG
 JPG
 JPG
Processor Core
4
BEST
Unknown - Click to provide data 2
Picture Processing Technology
 Samsung Wide Color Enhancer
 Samsung Wide Color Enhancer
 Samsung Wide Color Enhancer

Design

Colour
 Black
 Black
 Black

Ergonomics

VESA Mounting Interface
 300 x 300
 300 x 300
 300 x 300

Power

Typical Power Consumption
Unknown - Click to provide data 82W 82.6W
BEST
Standby Power Consumption
0.3W 0.5W 0.24W
BEST
AC Input Voltage
 100 - 240
 100 - 240
 100 - 240
AC Input Frequency
 50
 50
 50
Maximum Power Consumption
Unknown - Click to provide data 188W Unknown - Click to provide data

Certificates

Certification
Unknown - Click to provide data Unknown - Click to provide data UL, cUL, FCC Class B, HDMI 1.4/2.0, Dolby Digital Plus

Weight & Dimensions

Thickness
50.8mm
BEST
50.8mm
BEST
71.12mm
Weight
17.7kg 16.8kg
BEST
18.3kg
Package Weight
21.8kg
BEST
24.5kg 24.7kg
Weight (with Stand)
18.1kg
BEST
19.8kg 18.8kg
Depth (with Stand)
228mm
BEST
274.32mm 284.5mm
Height (with Stand)
762mm
BEST
762mm
BEST
828mm
Width (with Stand)
1,219mm
BEST
1,239.52mm 1,295mm
Height
711mm 718.82mm 762mm
Width
1,219mm 1,239.52mm 1,295mm
Packaging Height
787mm
BEST
810.26mm 879.1mm
Packaging Depth
Packaging Width
1,320mm
BEST
1,389.38mm 1,392mm

Packaging Content

Cable Included
 IR
 IR
 IR

Technical Details

RF Input
1 Unknown - Click to provide data Unknown - Click to provide data
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