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Samsung 40-inch MU640x Series

alaTest has collected and analyzed 798 reviews of Samsung 40-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. People really like the design and price. The sound and usability also get good reviews, whereas some have doubts about the connectivity.

image quality, usability, sound, price, design


We analyzed user and expert ratings, product age and more factors. Compared to other TVs the Samsung 40-inch MU640x Series is awarded an overall alaScore™ of 97/100 = Excellent quality.

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Review analysis

(Based on 798 reviews)

Expert Reviews  

User Reviews  

Showing 798 review(s)

Expert Reviews User Reviews


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Expert review by (

Samsung UE40MU6400 review


Can a £500 40in TV deliver a worthwhile 4K experience?

Crisp, detailed picture ; Natural colour balance ; Strong contrast ; Excellent value

HDR performance isn't as convincing as pricier models

A 'small' TV with a big mentality, the UE40MU6400 delivers an outstanding 4K performance for under £500

Oct, 2017

Expert review by : What Hi-Fi? (

Samsung UE40MU6400U review


Who needs supersized screens - the Samsung UE40MU6400U produces a great picture at an affordable price...

All the specs and apps you could hope for ; Deep, insightful blacks ; Impressive detail and definition ; Natural, nuanced colours ; Great value

You can get more impressive HDR if you spend more money

Looking for a 4K TV in a sensible size and at an extremely reasonable price? You’ve found it

Sep, 2017

Expert review by (

Samsung UE40MU6400 review

  (Rating Hidden)

This small but mighty 40-inch Samsung TV comes with the latest 4K HDR screen technology. So if you're looking for a reasonably priced TV that doesn't compromise on features, the UE40MU6400 will have caught your eye. See if it has the performance to...

Jun, 2017

Consumer review (

Samsung TV


Only slightly disappointed with sound quality on this TV

Mar, 2018

Consumer review (

Brilliant TV easy to use and set up.


Bought as a Which recommendation - my first smart TV. Easy to use, deaf easy to set up. Picture is excellent, movie mode gives most realistic colours. For a non-geek this was easy and I see how this got a great score on Which. Bought on-line after...

Mar, 2018

Consumer review (

Samsung 49 inch TV


We had been recommended to purchase a Samgsung and we had it delivered and set up by John Lewis and very happy with the product. Easy to move as it is on a wall bracket giving a very clear picture and easy instructions.

Mar, 2018

Consumer review (



The set was bought as a second set but we have found that it is too good for that description. It has now been adopted as the main TV in the household.

Mar, 2018

Consumer review (

Samsung smart TV


Very good value for money. Amazingly clear picture.

Mar, 2018

Consumer review (

Great TV for the price


I bought this solely for the 4K UHD picture quality and I certainly haven't been disappointed! It's packed full of fabulous features too like the SMART remote with voice commands which is brilliant - particularly useful for those with poor vision who...

Mar, 2018

Consumer review (

Samsung 49 tv


Excellent service from John Lewis,tv is easy to set up just plug in and tv does the rest,picture quality is good with easy to use controls,and come with 5yr gurantee recommended.

Mar, 2018

Product Specifications


Audio Decoders:DTS
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 / Silver
LED indicators:Power / Y
Year of production:2017


Aspect Ratio:16:9 / 4:3, 16:9
Display diagonal:101.6
Display diagonal (metric):100
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:16:9
Screen shape:Flat
Supported graphics resolutions:3840 x 2160
Supported video modes:720i,720p,1080i,1080p,2880p


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:200 x 200

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
Picture-in-Picture:N / Y
Sleep timer:Y
Smart modes: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, Samsung Slim Gender
Desktop stand:Y
Handheld remote control:Y
Mounting kit:Y
Remote control type:TM1750A
Smart Remote included:Y

Packaging Data

Package depth:186 / 616
Package height:186 / 616
Package Type:Box
Package weight:14.9
Package width:1053


4K Ultra HD upscaling:Y
Auto Depth Enhancer:N
ConnectShare (HDD):Y
ConnectShare (USB):Y
Digital Clean View:Y
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 UHD Up-Scailing,Samsung Ultra Clean View / Samsung UHD Up-Scailing
Plug and Play:Y
Processor Cores:4
PurColor:N / Y
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+):N / 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
Headphone outputs:1
One Connect port:N / Y
PC in (D-Sub):N
RF ports quantity:1
RS-232C ports:1
USB 2.0 ports quantity:2


AC input frequency:50/60
AC input voltage:220 - 240
Annual energy consumption:85
Energy efficiency class:A
Energy saving mode:Y
Power consumption (max):120
Power Consumption (Standby):0.5
Power consumption (typical):61

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 / Digital
Twin Tuner:N

Weight & Dimensions

Depth (with stand):304.1
Height :519.8
Height (with stand):573.3
Package depth:186
Package height:616
Package weight:14.9
Package width:1053
Weight with stand:10.5
Width (with stand):903.7