United Kingdom
Catalog   /   TVs & Video   /   TVs

Comparison LG 55UM7400 55 " vs LG 55UM7450 55 "

Add to comparison
LG 55UM7400 55 "
LG 55UM7450 55 "
LG 55UM7400 55 "LG 55UM7450 55 "
Outdated ProductOutdated Product
TOP sellers
Main
Support for Google Assistant, Amazon Alexa, Amazon Echo. AirPlay 2 support
Apple AirPlay 2 support. Google Assistant, Amazon Alexa support (varies by region and language).
Size55 "55 "
Operating systemSmart TV (proprietary system)Smart TV (proprietary system)
Display
MatrixIPSIPS
Screen surfaceanti-glareanti-glare
Resolution3840x2160 px3840x2160 px
Upscalingup to 4Kup to 4K
Frame rate60 Hz60 Hz
HDR supportHDR10HDR10
Colour enhancement
 /Advanced Colour Enhancer/
Multimedia
Sound power20 W20 W
Number of speakers22
Audio decodersDTSDTS
Digital tuner
DVB-T2 (terrestrial)
DVB-C (cable)
DVB-S (satellite)
DVB-S2 (satellite)
DVB-T2 (terrestrial)
DVB-C (cable)
DVB-S (satellite)
DVB-S2 (satellite)
Features
Features
AirPlay 2
Wi-Fi 5 (802.11ac)
Miracast
Bluetooth v 5.0
voice control
Amazon Alexa
Google Assistant
AirPlay 2
Wi-Fi 5 (802.11ac)
Miracast
Bluetooth v 5.0
voice control
Amazon Alexa
Google Assistant
Connectors
HDMI33
HDMI versionv 2.0v 2.0
Additional inputs
USB
LAN
component
composite AV input
USB
LAN
component
 
Outputs
optical
optical
General
Built-in memory4 GB4 GB
RAM1.5 GB1.5 GB
Wall mountVESA 300x300 mmVESA 300x300 mm
Power consumption114 W
Energy efficiency classAA
Dimensions (WxHxD)
1244x791x260 mm /with stand/
1244x791x260 mm /with stand/
Dimensions without stand (WxHxD)1244x726x87 mm1244x726x87 mm
Weight
15.6 kg /with stand/
15.6 kg /with stand/
Color
Added to E-Catalogjuly 2019april 2019

Colour enhancement

The TV's support of one or the other colour enhancement technology.

Such technologies usually involve image processing in software to provide brighter and/or more accurate colours. Specific processing methods may be different, some manufacturers do not specify technical details at all, limiting themselves to advertising statements. The effect of using such technologies can also vary: in some cases it is clearly visible, in others it is almost absent, depending on the features of the picture. It is also worth saying that this feature, usually, needs to be turned on manually in the TV menu (accordingly, it can be turned off if desired).

Additional inputs

The TV's connectivity options are based not only on wireless technologies (described above), but also on a wired connection. In particular, additional video transmission can be carried out through VGA, composite AV connectors . Some of them also provide sound transmission, in addition to which there may be a mini-Jack (3.5 mm) and other ports for communication with external devices. More about them:

USB. Connector for connecting external peripheral devices. The presence of USB means at least that the TV is capable of playing content from flash drives and other external USB media. In addition, there may be other ways to use this input: recording TV programs to external media, connecting a WEB camera (see same paragraph), keyboard and mouse to use the built-in browser and other software, etc. The specific set of options depends on the functionality of the TV, it should be specified separately in each case.

Card reader. A device for working with memory cards, most often in SD format. The main use of the card reader is to play content from such cards on a TV; such an opportunity is especially convenient for viewing materials from photo and video cameras — it is in such devices that memory cards are widely used. There may be other ways to use this function — fo...r example, recording from the broadcast or even exchanging files between the card and the TV's storage. It is worth bearing in mind that SD cards have several subtypes — original SD, SD HC and SD XC, and not all of them may be supported by the card reader.

— LAN. Standard connector for wired connection to computer networks (both local and the Internet). Mostly found in models with Smart TV support (including Android TV devices; see related paragraphs). A wired connection is less convenient than Wi-Fi, not as aesthetically pleasing, so manufacturers place more emphasis on a wireless connection, as a result of which the speed indicators of the LAN connector are not indicated, and in some cases may be unacceptable for 4K broadcasts.

— VGA. Analogue video input, also known as D-sub 15 pin. Initially, the VGA interface was developed for computers, but due to the emergence of more advanced standards like HDMI (see below) and technical limitations (the maximum resolution is only 1280x1024, the inability to transmit sound), it is considered obsolete and is used less and less. So it makes sense to specifically look for a TV with such a connector mainly in cases where it is planned to be used as a monitor for an outdated computer or laptop.

– Composite AV input. Analogue input for video and audio transmission. Previously, it consisted of 3 RCA sockets (yellow for video, white and red for audio) and was connected to the equipment accordingly. Now in many models you can find an AV output, which is a single connector in the “headphone” format, to which a tee cable is already connected (check availability in the package).

— COM port (RS-232). A connector originally designed for computer equipment. In TVs, it is used as a service interface: for troubleshooting, updating firmware, adjusting TV parameters and various calibrations, integrating the TV into centralized remote control systems, etc. Note that the COM port may differ in shape and contact group in different TV models. It is often designated as RS-232C.

Power consumption

The electrical power normally consumed by the TV. This parameter strongly depends on the screen size and sound power (see above), however, it can be determined by other parameters — primarily additional features and technologies implemented in the design. It is worth noting that most modern LCD TVs are quite economical, and most often this parameter does not play a significant role — in most cases, power consumption is about several tens of watts. And even large models with a diagonal of 70 – 90" consume about 200 – 300 W — this can be compared with the system unit of a low-power desktop PC.
LG 55UM7400 often compared
LG 55UM7450 often compared