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Samsung 55-inch MU640x Series

alaTest has collected and analyzed 666 reviews of Samsung 55-inch MU640x Series. The average rating for this product is 4.7/5, compared to an average rating of 4.3/5 for other TVs for all reviews. Reviewers really like the design and price. The sound and usability are also mentioned favorably, but some have doubts about the tuner.

image quality, usability, sound, price, design


We analyzed user and expert ratings, product age and more factors. Compared to other TVs the Samsung 55-inch MU640x Series is awarded an overall alaScore™ of 94/100 = Excellent quality.

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Review analysis

(Based on 666 reviews)

Expert Reviews  

User Reviews  

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Expert review by (

Samsung UE55MU6400 review

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The combination of a big 55-inch screen and a more affordable price tag has made the Samsung UE55MU6400 a popular TV over recent years. It offers features found on TVs more than twice its price, but how did it fare in the lab? Find out in our full review.

Jun, 2017

Expert review by : Eric Beeckmans (

Review: Samsung UE55MU6400 (MU6400-serie) lcd led tv


Welke compromissen sluit je als je deze middenklasser kiest? De UE55MU6400 levert vooral in op zwartwaarde, contrast en bewegingsscherpte. HDR-ondersteuning heeft het toestel wel, maar de piekluminantie is te laag voor echte HDR-weergave, zelfs al is...

Beeldverwerking ; Kleurweergave ; Smart Hub en Smart Controller

Zeer matige zwartwaarde en contrast ; Bewegingsscherpte ; Piekluminantie te bescheiden voor echte HDR-weergave

Jul, 2017

Expert review by : Eric Beeckmans (

Review: Samsung UE55MU6400 (MU6400-serie) lcd led tv


Samsung besteed erg veel aandacht aan de nieuwe QLED-series lcd tv's, maar dat betekent niet dat je de middenklassers zo maar mag afschrijven. Toestellen zoals de Samsung UE55MU6400 hebben heel wat te bieden voor een interessante prijs.


Zeer matige zwartwaarde en contrast

Welke compromissen sluit je als je deze middenklasser kiest? De UE55MU6400 levert vooral in op zwartwaarde, contrast en bewegingsscherpte. HDR-ondersteuning heeft het toestel wel, maar de piekluminantie is te laag voor echte HDR-weergave, zelfs al is...

Jul, 2017

Consumer review (

Outstanding service. Great advice.


I bought 5 Sonos speakers, brackets and. 4K tv. The support was amazing and we are delighted with the equipment.

Jun, 2018

Consumer review (

Great tv


Crystal clear picture sound is really good also overall absolutely brilliant 4k tv this is my 4th Samsung tv which I have bought from richer sounds Samsung excellent make to buy highly recommend this tv

Jun, 2018

Consumer review (

Great tv, good picture, easy to use.


Impressive looking tv, great picture and simple to use

Jun, 2018

Consumer review (

Brilliant picture


Perfect for the football picture is brilliant worth it

Jun, 2018

Consumer review (

Great value for money


Having had a Samsung TV for over ten years, I wouldn't opt for anything else and am very happy with the new TV.

Jun, 2018

Consumer review (

Above and beyond service


Attentive, knowledgeable and patient staff gave me a great experience and an extremely competitive price, more than happy with my purchase.

Jun, 2018

Consumer review (

Superb picture and really responsive


Great TV with superb picture, big step up from a 4 year old Sony

Jun, 2018

Product Specifications


Audio Decoders:DTS / DTS,Dolby Digital
Audio decoding technologies:Dolby Digital Plus
Audio system:2.0
Auto volume leveler:Y
Built-in speaker(s):Y
Built-in subwoofer:N
Multiroom audio technology:Samsung Multiroom Link
Number of loudspeakers:2
Number of Speakers:2
RMS rated power:20


Digital Living Network Alliance (DLNA) certified:Y


Boundless 360° design:Y
Colour of product:Black, Silver
LED indicators:Power / Y
Year of production:2017


Aspect Ratio:16:9
Display diagonal:139.7
Display diagonal (metric):138
Display Resolution:3840 x 2160
Display Technology:LED
Dynamic contrast ratio marketing name:Mega Contrast
HD type:4K Ultra HD
Motion interpolation technology:PQI (Picture Quality Index)
PQI (Picture Quality Index):1500
Screen format adjustments:4:3, 16:9
Screen shape:Flat
Supported graphics resolutions:3840 x 2160
Supported video modes:2160p / 720i,720p,1080i,1080p,2160p


Invisible connection:N
No gap wall-mount:N
On/off switch:Y
Smart Remote support:Y
Smartphone remote support:Y
VESA mounting:Y
VESA mounting interfaces:400 x 400

Management features

Auto power off:Y
ECO mode:Y
Electronic Programme Guide (EPG):Y
Number of OSD languages:27
On Screen Display (OSD):Y
On/Off timer:Y
Sleep timer:Y
Smart modes:Game, Movie


Bluetooth profiles:HID
Ethernet LAN:Y
Web Browser:Y
Wi-Fi Direct:Y

Other features

Dimming type:Supreme UHD / UHD Dimming

Packaging Content

Batteries included:Y
Cables included:AC
Desktop stand:Y
Handheld remote control:Y
Mounting kit:Y
Remote control type:Smart / TM1750A
Smart Remote included:Y
Warranty card:Y

Packaging Data

Package depth:192
Package height:819
Package Type:Box
Package weight:24.1 / 25.3
Package width:1420


4K Ultra HD upscaling:Y
Auto Depth Enhancer:N
ConnectShare (HDD):Y
ConnectShare (USB):Y
Digital Clean View:Y
Dimming type:Supreme UHD
Extended PVR:Y
Game mode:Y
HDMI Quick Switch:Y
High Dynamic Range Imaging (HDRI):Y
Instant On:Y
Local Dimming:N / Y
MBR support:Y
Nano Crystal Color:Y
Peak Illuminator Pro:N / Y
Picture processing technology:Samsung Auto Motion Plus,Samsung Contrast Enhancer,Samsung Ultra Clean View / Samsung UHD Up-Scailing
Plug and Play:Y
Processor Cores:4
Quantum dot color technology:N
Satellite Channel Router (SatCR) compatible:Y
Subtitle formats supported:TXT
Subtitles function:Y
Teletext function:Y
USB Recording:Y
Voice Control:Y

Ports & interfaces

Audio Return Channel (ARC):Y
Common interface (CI):Y
Common interface Plus (CI+):Y
Common interface Plus (CI+) version:1.3
Component video (YPbPr/YCbCr) in:1
Composite Video In:1
Consumer Electronics Control (CEC):Anynet+
Digital Audio Optical Out:1
DVI port:N
Ethernet LAN (RJ-45) ports:1
HDMI ports quantity:3
One Connect port:N / Y
PC in (D-Sub):N
RF ports quantity:1 / 2
RS-232C ports:1
USB 2.0 ports quantity:2


AC input frequency:50/60
AC input voltage:220 - 240
Annual energy consumption:154
Energy efficiency class:A
Energy saving mode:Y
Power consumption (max):170
Power Consumption (Standby):0.5
Power consumption (typical):111

Smart TV

Hybrid Broadcast Broadband TV (HbbTV):Y
Hybrid Broadcast Broadband TV (HbbTV) version:1.5
Internet TV:Y
Lifestyle apps:Samsung Smart View
Music apps:Deezer, Spotify
Screen mirroring:Y
Smart TV:Y
Video apps:Amazon Prime Video,NetFlix,YouTube

Technical Details

LED Backlight:Y

TV tuner

Auto channel search:Y
Digital signal format system:DVB-C,DVB-S2,DVB-T / DVB-C2,DVB-S2,DVB-T
Number of Tuners:1
Tuner type:Analog & Digital

Weight & Dimensions

Depth (with stand):334.3
Height :715.1
Height (with stand):783.9
Package depth:192
Package height:819
Package weight:24.1 / 25.3
Package width:1420
Weight with stand:19
Width (with stand):1235.2