LG 55UH661 vs LG 55UH668 vs LG 55UH750
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Top Prices Reasons For Reasons Against Reviews & Awards Date Released Key Features Energy Efficiency Price Trend Specification
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LG 55UH661vsLG 55UH668vsLG 55UH750

LG 55UH661

77

Overall Score

77

Overall Score
Our Verdict:
An economical to run and excellently reviewed 55" 4K TV, with good features
94
Reviews
140 Reviews
79
Features
Good Features
79
Running Costs
$84 Over 5 Years
77
Overall Score
Very Good
55" 4K No 60.9mm Mar 2016 A+
Display Diagonal HD Type OLED/QLED Technology Thickness Release Date Energy Efficiency
Display Diagonal 55"
HD Type 4K
OLED/QLED Technology No
Thickness 60.9mm
Release Date Mar 2016
Energy Efficiency A+
LG 55UH668

70

Overall Score

70

Overall Score
Our Verdict:
A good spec and very economical to run 55" 4K TV
77
Features
Good Features
80
Running Costs
$75 Over 5 Years
70
Overall Score
Very Good
55" 4K No 60.9mm Apr 2016 A+
Display Diagonal HD Type OLED/QLED Technology Thickness Release Date Energy Efficiency
Display Diagonal 55"
HD Type 4K
OLED/QLED Technology No
Thickness 60.9mm
Release Date Apr 2016
Energy Efficiency A+
LG 55UH750

70

Overall Score

70

Overall Score
Our Verdict:
A good spec and economical to run 55" 4K TV
77
Features
Good Features
79
Running Costs
$81 Over 5 Years
70
Overall Score
Very Good
55" 4K No 51.2mm Mar 2016 A+
Display Diagonal HD Type OLED/QLED Technology Thickness Release Date Energy Efficiency
Display Diagonal 55"
HD Type 4K
OLED/QLED Technology No
Thickness 51.2mm
Release Date Mar 2016
Energy Efficiency A+
LG 55UH661

77

Overall Score

77

Overall Score
Our Verdict:
An economical to run and excellently reviewed 55" 4K TV, with good features
94
Reviews
140 Reviews
79
Features
Good Features
79
Running Costs
$84 Over 5 Years
77
Overall Score
Very Good
55" 4K No 60.9mm Mar 2016 A+
Display Diagonal HD Type OLED/QLED Technology Thickness Release Date Energy Efficiency
Display Diagonal 55"
HD Type 4K
OLED/QLED Technology No
Thickness 60.9mm
Release Date Mar 2016
Energy Efficiency A+
LG 55UH668

70

Overall Score

70

Overall Score
Our Verdict:
A good spec and very economical to run 55" 4K TV
77
Features
Good Features
80
Running Costs
$75 Over 5 Years
70
Overall Score
Very Good
55" 4K No 60.9mm Apr 2016 A+
Display Diagonal HD Type OLED/QLED Technology Thickness Release Date Energy Efficiency
Display Diagonal 55"
HD Type 4K
OLED/QLED Technology No
Thickness 60.9mm
Release Date Apr 2016
Energy Efficiency A+
LG 55UH750

70

Overall Score

70

Overall Score
Our Verdict:
A good spec and economical to run 55" 4K TV
77
Features
Good Features
79
Running Costs
$81 Over 5 Years
70
Overall Score
Very Good
55" 4K No 51.2mm Mar 2016 A+
Display Diagonal HD Type OLED/QLED Technology Thickness Release Date Energy Efficiency
Display Diagonal 55"
HD Type 4K
OLED/QLED Technology No
Thickness 51.2mm
Release Date Mar 2016
Energy Efficiency A+

Top Prices

LG 55UH661 LG 55UH668 LG 55UH750
No prices found No prices found No prices found
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Reasons For

LG 55UH661 LG 55UH668 LG 55UH750
No data 2 Reasons For
Faster High Frequency Rate
The LG 55UH668 is a 100Hz refresh rate TV. That's 50Hz faster than the LG 55UH661 (50Hz).

The refresh rate (also known as the high frequency rate) is the number of times that the image on the screen is refreshed per second. It affects how smoothly motion on the screen appears.

Action will appear smoother on TVs with a higher frequency rate: a TV with a high frequency rate of 30Hz refreshes the image on the screen once every 30 times every second. However a TV with a high frequency rate of 60Hz would refresh the image on the screen 60 times every second which means that action scenes would appear smoother.

Read more Read less | Edit
Cheaper to Run by $9 Over Five Years
The LG 55UH668 is $9 cheaper to run than the LG 55UH661 and $6 cheaper to run than the LG 55UH750 over five years.
Read more Read less
1 Reason For
19% Thinner
The LG 55UH750 has a thickness of 51.2mm, however the LG 55UH661 and the LG 55UH668 are both 60.9mm thick TVs (9.7mm thicker).

The thickness of a 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.

Read more Read less | Edit

Reasons Against

LG 55UH661 LG 55UH668 LG 55UH750
4 Reasons Against
Vastly Slower High Frequency Rate
The LG 55UH661 has a high frequency rate of 50Hz. That's 50Hz slower than the LG 55UH668 (100Hz).

The refresh rate (also known as the high frequency rate) is the number of times that the image on the screen is refreshed per second. It affects how smoothly motion on the screen appears.

Action will appear smoother on TVs with a higher frequency rate: a TV with a high frequency rate of 30Hz refreshes the image on the screen once every 30 times every second. However a TV with a high frequency rate of 60Hz would refresh the image on the screen 60 times every second which means that action scenes would appear smoother.

Read more Read less | Edit
Thicker
LG 55UH661 is 60.9mm thick (as does the LG 55UH668), but the LG 55UH750 is a 51.2mm thick TV (9.7mm thinner).

The thickness of a 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.

Read more Read less | Edit
One Month Older
The LG 55UH661 is older than the LG 55UH668 by one month. The LG 55UH661 is the same age as the LG 55UH750.
More Expensive to Run Over Five Years by 12%
Over five years the LG 55UH661 costs $84 to run which is $9 more than the LG 55UH668 and $3 more than the LG 55UH750. Show assumptions.
1 Reason Against
16% Thicker
The LG 55UH668 has a thickness of 60.9mm (as does the LG 55UH661), however the LG 55UH750 is a 51.2mm thick TV (9.7mm thinner).

The thickness of a 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.

Read more Read less | Edit
2 Reasons Against
One Month Older
The LG 55UH750 is older than the LG 55UH668 by one month. The LG 55UH750 is the same age as the LG 55UH661.
More Expensive to Run Over Five Years by 8%
The running costs of the LG 55UH750 are $81 which is $6 more than the LG 55UH668 over five years. Show assumptions.

Reviews & Awards

Average Expert Rating

LG 55UH661 LG 55UH668 LG 55UH750
No reviews found
Best
5 stars
0 reviews
4 stars
0 reviews
3 stars
0 reviews
2 stars
0 reviews
1 star
0 reviews
No reviews found

Average User Rating

LG 55UH661 LG 55UH668 LG 55UH750
Best
5 stars
83 reviews
4 stars
21 reviews
3 stars
4 reviews
2 stars
8 reviews
1 star
9 reviews
No reviews found No reviews found

Date Released

LG 55UH661 LG 55UH668 LG 55UH750
23 months old 22 months old Best 23 months old

Key Features

High Frequency Rate

The refresh rate (also known as the high frequency rate) is the number of times that the image on the screen is refreshed per second. It affects how smoothly motion on the screen appears.

Action will appear smoother on TVs with a higher frequency rate: a TV with a high frequency rate of 30Hz refreshes the image on the screen once every 30 times every second. However a TV with a high frequency rate of 60Hz would refresh the image on the screen 60 times every second which means that action scenes would appear smoother.

Thickness

The thickness of a 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.

Energy Efficiency

Energy Efficiency Class

LG 55UH661 LG 55UH668 LG 55UH750

Running Costs Over 5 Years

TV running costs calculated based on an average of 5 hours of use per day. The running cost comprises the electricity cost when using the TV and the electricity standby cost. Compare all energy saving TVs.

Environmental Impact

We have calculated the amount of CO2 that will be generated by running each of these TVs for 5 years. We have then converted that into the number of tree seedlings that you would need to plant and grow for 10 years in order to offset that amount of CO2.
LG 55UH661
LG
55UH661
13 trees 0.49 tonnes CO2
LG 55UH668
LG
55UH668
11 trees 0.44 tonnes CO2 (Best)
LG 55UH750
LG
55UH750
12 trees 0.48 tonnes CO2

Specification

 
 
 
Display LG 55UH661 LG 55UH668 LG 55UH750
Display Diagonal 55" 55" 55"
HD Type
4K
 4K
4K
 4K
4K
 4K
High Frequency Rate 50Hz
BEST
100Hz
Display Resolution
3840 x 2160 (4K)
 3840 x 2160 (4K)
3840 x 2160 (4K)
 3840 x 2160 (4K)
3840 x 2160 (4K)
 3840 x 2160 (4K)
Motion Interpolation Frequency
Display Brightness
Horizontal Viewing Angle 178° Unknown - Click to provide data Unknown - Click to provide data
Supported Video Mode
2160p
 2160p
2160p
 2160p
2160p
 2160p
PMI (Picture Mastering Index) 1,700 1,200 1,900
BEST
Display Technology
LED
 LED
LED
 LED
LED
 LED
Screen Format Adjustments
Zoom
 Zoom
Zoom
 Zoom
Zoom
 Zoom
Display Diagonal (metric) 139cm 139cm Unknown - Click to provide data
Supported Graphics Resolutions
3840 x 2160
 3840 x 2160
3840 x 2160
 3840 x 2160
3840 x 2160
 3840 x 2160
Vertical Viewing Angle 178° Unknown - Click to provide data Unknown - Click to provide data
 
 
 
Audio LG 55UH661 LG 55UH668 LG 55UH750
RMS Rated Power 20W 20W 20W
Loudspeaker 2 2 2
Sound Modes
Standard Music
Sports Game
 Standard
 Music
 Sports
 Game
Standard Music
Sports Game
 Standard
 Music
 Sports
 Game
Standard Music
Sports Game
 Standard
 Music
 Sports
 Game
Speaker 2 2 2
 
 
 
Smart TV LG 55UH661 LG 55UH668 LG 55UH750
Operating System Version
 
 
 
Design LG 55UH661 LG 55UH668 LG 55UH750
Peak Luminance Ratio Unknown - Click to provide data 65% 65%
Year of Production Unknown - Click to provide data Unknown - Click to provide data
 
 
 
Power LG 55UH661 LG 55UH668 LG 55UH750
Energy Efficiency Class
A+
 A+
A+
 A+
A+
 A+
Power Consumption (typical) 76W 68W
BEST
73W
Power Consumption (standby) 0.3W 0.3W 0.3W
Annual Energy Consumption 111kWh 99kWh 107kWh
BEST
 
 
 
TV Tuner LG 55UH661 LG 55UH668 LG 55UH750
Tuner Type
Digital
 Digital
Digital
 Digital
Digital
 Digital
 
 
 
Performance LG 55UH661 LG 55UH668 LG 55UH750
Video Formats Supported
M-JPEG MPEG
MPEG1 MPEG2
MPEG4 H.264
VC-1 DV
XVID VP8
RV H.265
VP9
 M-JPEG
 MPEG
 MPEG1
 MPEG2
 MPEG4
 H.264
 VC-1
 DV
 XVID
 VP8
 RV
 H.265
 VP9
M-JPEG MPEG
MPEG1 MPEG2
MPEG4 H.264
VC-1 DV
XVID VP8
RV H.265
VP9
 M-JPEG
 MPEG
 MPEG1
 MPEG2
 MPEG4
 H.264
 VC-1
 DV
 XVID
 VP8
 RV
 H.265
 VP9
M-JPEG MPEG
MPEG1 MPEG2
MPEG4 H.264
VC-1 DV
XVID VP8
RV H.265
VP9
 M-JPEG
 MPEG
 MPEG1
 MPEG2
 MPEG4
 H.264
 VC-1
 DV
 XVID
 VP8
 RV
 H.265
 VP9
Audio Formats Supported
AMR WMA
LPCM PCM
eAAC+ HE-AAC
ADPCM AMR-WB
AAC HE HE-A
AAC++
 AMR
 WMA
 LPCM
 PCM
 eAAC+
 HE-AAC
 ADPCM
 AMR-WB
 AAC HE
 HE-A
 AAC++
AMR WMA
LPCM PCM
eAAC+ HE-AAC
ADPCM AMR-WB
AAC HE HE-A
AAC++
 AMR
 WMA
 LPCM
 PCM
 eAAC+
 HE-AAC
 ADPCM
 AMR-WB
 AAC HE
 HE-A
 AAC++
AMR WMA
LPCM PCM
eAAC+ HE-AAC
ADPCM AMR-WB
AAC HE HE-A
AAC++
 AMR
 WMA
 LPCM
 PCM
 eAAC+
 HE-AAC
 ADPCM
 AMR-WB
 AAC HE
 HE-A
 AAC++
Processor Cores 4 Unknown - Click to provide data 4
Teletext 2,000 Pages Unknown - Click to provide data 2,000 Pages
 
 
 
Packaging Content LG 55UH661 LG 55UH668 LG 55UH750
Remote Control Type Unknown - Click to provide data
Cables Included
AC
 AC
AC
 AC
AC
 AC
 
 
 
Networking LG 55UH661 LG 55UH668 LG 55UH750
Wi-Fi Standards
802.11ac 802.11a
IEEE 802.11a IEEE 802.11ac
 802.11ac
 802.11a
 IEEE 802.11a
 IEEE 802.11ac
802.11ac 802.11a
IEEE 802.11a IEEE 802.11ac
 802.11ac
 802.11a
 IEEE 802.11a
 IEEE 802.11ac
802.11ac 802.11a
IEEE 802.11a IEEE 802.11ac
 802.11ac
 802.11a
 IEEE 802.11a
 IEEE 802.11ac
 
 
 
Management Features LG 55UH661 LG 55UH668 LG 55UH750
Smart Modes
Vivid Cinema
Game Standard
Photo Sports
 Vivid
 Cinema
 Game
 Standard
 Photo
 Sports
Vivid Cinema
Game Standard
Photo Sports
 Vivid
 Cinema
 Game
 Standard
 Photo
 Sports
Vivid Cinema
Game Standard
Photo Sports
 Vivid
 Cinema
 Game
 Standard
 Photo
 Sports
Programming Period 8 Day(s) Unknown - Click to provide data 8 Day(s)
 
 
 
Weight & Dimensions LG 55UH661 LG 55UH668 LG 55UH750
Thickness 60.9mm 60.9mm 51.2mm
BEST
Weight 16.5kg
BEST
18.2kg 19.3kg
Weight With Stand 18.2kg
BEST
Unknown - Click to provide data 19.7kg
Depth (with Stand) 282mm 282mm 218mm
BEST
Height (with Stand) 787mm 787mm 783mm
Width (with Stand) 1,240mm 1,240mm 1,239mm
BEST
Height 721mm 721mm 726mm
Width 1,240mm 1,240mm 1,239mm
 
 
 
Ports & Interfaces LG 55UH661 LG 55UH668 LG 55UH750
Headphone Outputs 1 1 1
Ethernet LAN (RJ-45) Port 1 1 1
RF Port 1 2
BEST
2
BEST
SCART Port Unknown - Click to provide data 1 Unknown - Click to provide data
RS-232 Port 1 Unknown - Click to provide data Unknown - Click to provide data
Digital Audio Optical Out 1 1 1
Composite Video in 1 1 1
Component Video (YPbPr/YCbCr) in 1 Unknown - Click to provide data 1
USB 2.0 Port 2 2 2
HDMI Version
2.0a
 2.0a
2.0a
 2.0a
2.0a
 2.0a
HDMI Port 3 3 3
Audio (L,R) in 1 Unknown - Click to provide data Unknown - Click to provide data
USB 3.0 Type-A Port Unknown - Click to provide data Unknown - Click to provide data 1
Common Interface Plus (CI+) Version 1.3 Unknown - Click to provide data 1.3
 
 
 
Technical Details LG 55UH661 LG 55UH668 LG 55UH750
Timer Unknown - Click to provide data Unknown - Click to provide data
 
 
 
Packaging Data LG 55UH661 LG 55UH668 LG 55UH750
Package Weight 23.8kg 22.3kg
BEST
24.5kg
Package Height 860mm 860mm 830mm
BEST
Package Width 1,360mm 1,360mm 1,360mm

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