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LG 55UK6400 Series

alaTest has collected and analyzed 81 reviews of LG 55UK6400 Series. The average rating for this product is 4.8/5, compared to an average rating of 4.3/5 for other products in the same category for all reviews. Opinions about the glare and price are overall positive. The usability and sound are also mentioned favorably, but there are some mixed comments about the connectivity.

image quality, sound, usability, price, glare

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the LG 55UK6400 Series is awarded an overall alaScore™ of 89/100 = Very good quality.

Review analysis

(Based on 81 reviews)

User Reviews  

Showing 78 review(s)

Expert Reviews User Reviews


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Showing 1 - 10 of 78 Show Reviews: in English | in other languages (3)

Consumer review (

Good tv


To early to comment fully, only had TV eight days but picture and sound very good also good looking set ,one thing I have noticed the stand it sits on is a bit flimsy overall pleased

Jan, 2019

Consumer review (

Good sound good picture


All good but we can't connect to alexa other than that great buy

Jan, 2019

Consumer review (

TV very good


Very good nice looking TV. Sharp picture and clear sound. This is our 3 rd LG TV and never had problems with any.

Jan, 2019

Consumer review (

The kit.


Looks great and so easy to set up - nearly did itself!

Jan, 2019

Consumer review (

Great TV. Value for Money


I bought this on boxin day. Delivered the day after. It was easy to setup. Good sound and picture quality. Loving this...

Jan, 2019

Consumer review (

Great TV, Best Online Price with Longest Warranty!


I purchased this TV just after Xmas and was amazed I could get a 55inch LG at this price with a 6 years warranty. The communication from Richersounds was second to none and the delivery team were extremely professional. The TV is everything I expected...

Jan, 2019

Consumer review (

WOW! Fantastic picture & sound.


We finally replaced our 6 year old 40” Sony with this LG 55” and I am absolutely gobsmacked by the amazing picture, brilliant sound and ease of set up and use. The great staff at Richer Sounds Sheffield made buying this TV an easy decision to make

Jan, 2019

Consumer review (

Great tv for the price also sound and pictire


Well worth the money as the picture and sound quality is really good

Jan, 2019

Consumer review (

Excellent product and Excellent Service


I Brought 1 x LG TV 49" Back in October My son loved it that much he had it of me.So now I've been and Brought another one to replace it, only I've gone for a LG 55" this time and it's brilliant. I also have a LG sound bar that is also brilliant what a...

Jan, 2019

Consumer review (

Good all round performance at a very good price


Have been looking to replace my old tv and from previous good purchases from richer sounds this is the first place I looked.web site easy and clear to navigate around.Easy to read reviews and can put 3 different TVs against one another . Tv has good...

Jan, 2019

Product Specifications


Audio decoders:DTS / DTS,Dolby Digital
Audio decoding technologies:Dolby Digital,DTS
Built-in speaker(s):Y
Number of Speakers:2
RMS rated power:20
Sound modes:Clear Voice III


Color of product:Black
On/Off switch:Y
Product color:Black / Grey
VESA mounting:Y
VESA mounting interfaces:300 x 300


Aspect Ratio:16:9
Color Depth:10
Display Diagonal:55
Display Diagonal (metric):54.7
Display Resolution:3840 x 2160
Display Technology:LED
HD type:4K Ultra HD
LED backlighting type:Direct-LED BLU
Motion interpolation technology:TruMotion 100 Hz
Noise reduction:Y
Screen shape:Flat
Supported graphics resolutions:3840 x 2160
Supported video modes:2160p


On/Off switch:Y
VESA mounting:Y
VESA mounting interfaces:300 x 300

Management Features

Electronic Program Guide (EPG):Y
My Channel function:Y
Number of OSD languages:36
On Screen Display (OSD):Y
Programming period:8


Bluetooth version:4.2
Ethernet LAN:Y
Web browser:Y
Wi-Fi Direct:Y
Wi-Fi standards:IEEE 802.11ac

Packaging Content

Batteries included:Y
Desktop stand:Y
Handheld remote control:Y

Packaging Data

Package depth:7.48
Package height:33.9
Package type:Box
Package weight:44.1
Package width:53.5


4K upscaler:Y
High Dynamic Range Imaging (HDRI):Y
Local dimming:Y
Noise reduction:Y
Processor cores:4
Teletext function:Y

Ports & interfaces

Audio Return Channel (ARC):Y
Common interface (CI):Y
Common interface Plus (CI+):Y
Common interface Plus (CI+) version:1.4
Component video (YPbPr/YCbCr) in:1
Composite video in:1
Consumer Electronics Control (CEC):SimpLink
Digital audio optical out:1
DVI port:N
Ethernet LAN (RJ-45) ports:1
HDMI ports quantity:3
Headphone outputs:1
PC in (D-Sub):N
RF ports quantity:1
USB 2.0 ports quantity:2


AC input frequency:50/60
AC input voltage:100 - 240
Annual Energy Consumption:123
Energy efficiency class:A+
Energy saving mode:Y
Power consumption (standby):0.5
Power consumption (typical):89

Smart TV

App store:LG Content Store
Hybrid Broadcast Broadband TV (HbbTV):Y
Hybrid Broadcast Broadband TV (HbbTV) version:2.0.1
Internet TV:Y
Music apps:Spotify
Operating system installed:Web OS
Operating system version:4.0
Smart TV:Y
Video apps:Amazon Prime Video,NetFlix,YouTube

TV Tuner

Analog signal format system:PAL,SECAM
Digital signal format system:DVB-C,DVB-S2,DVB-T2
Supported TV bands:S Band, UHF, VHF
Tuner Type:Analog & digital

Weight & Dimensions

Depth (with stand):10.2
Height (with stand):30.9
Weight with stand:33.1
Width (with stand):49.1