LG CX OLED Smart TV (41 Questions Answered)

By Robert Anderson •  13 min read •  Televisions

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The LG CX is an excellent high-end TV.

So, whether you’re looking to watch movies on the CX or play the latest games on it, you’ll be blown away by the quality of the pictures that it can produce.

In this article, we look at some of the common questions people have around this superb TV.

Here’s what you need to know about The LG CX:

The LG CX is a high-end TV with excellent picture quality.  The CX (pronounced “C Ten”) has an OLED display that can produce images with amazing contrast, which will suit movie lovers and gamers alike.  It’s packed with gaming features such as HDMI 2.1 and VRR but is also suitable for watching TV shows or sports in bright rooms.

Get the latest price for the LG CX on Amazon (#ad)

Is the LG CX 4K or 8K?

The LG CX OLED is a 4K TV with a native resolution of 3,840 x 2,160.

The only 8K OLED TV that LG currently produces is the LG SIGNATURE ZX 8K OLED.

Does the LG CX support 1440p?

The LG CX doesn’t natively support a resolution of 1440p.  

But Rings.com have confirmed that a resolution of 1440p can be displayed if forced using an nVidia control panel.

Does the LG CX support 10-bit or 12-bit color?

The LG CX natively supports up to 10-bit color, but it will accept 12-bit inputs and resolve it to 10-bit.

All the ports on the LG CX handle 10-bit 4K at 120Hz with 4:4:4 chroma sampling.  This requires just 40 Gbps of bandwidth 

A 12-bit color depth requires the ‘full-fat’ version of HDMI 2.1 which is 48 Gbps of bandwidth.  This is supported on the LG C9 OLED.

Is the LG CX 120Hz?

The LG CX has a refresh rate of 120Hz and can interpolate lower frame rate content up to 120fps.

Is the LG CX HDR?

The LG CX supports HDR10, Dolby Vision and HLG HDR formats.  But it doesn’t support HDR10+.

HDR movies and gaming are excellent on the LG CX and displays a very wide color gamut.  

This means that TV can and does display a wide range of colors in HDR mode.

Is the LG CX Imax Enhanced?

No, the LC CX is not Imax Enhanced.  Imax Enhanced is currently only supported on the following TVs:

  • Sony XR- Z9J Series
  • Hiensen U8G
  • Hisneen U7G
  • Sony Bravia Z9J
  • Sony Bravia X95J
  • Sony Bravia X90J
  • Sony Bravia A90J
  • Sony Bravia A80J
  • TCL X915

How bright is the LG CX?

The LG CX has a brightness of between 294 and 308 cd/m² (nits) when the Automatic Brightness Limiter (ABL) is turned off (according to Rtings.com).

Whilst this is good for an OLED TV, you may want to consider a QLED if you wish to position the TV in direct sunlight as they can get much brighter.  

The direct sunlight can also damage OLED pixels.

But the LG CX does have decent reflection handling so you shouldn’t have any problems viewing it in a bright room.

Does the LG CX need calibration?

The LG CX doesn’t explicitly need calibrating as many TVs come close to the standards that directors and filmmakers intended to see.

In fact, one user in the OLED subreddit contacted multiple hollywood colorists and all of them said that the C series were the ‘best calibrated TVs out of the factory of all time’.

That being said, calibration carried out by a certified professional can improve the picture.  

But how much the picture will improve depends on how accurate the settings were in the first place.

Calibrating a TV can cost over $100, so is only really worthwhile if you have a high end TV and you are a user that demands peak performance from your TV.

Does the LG CX have VRR?

The LG CX supports FreeSync and G-SYNC VRR (Variable Refresh Rate).

The LG CX also supports HDMI Forum VRR.  

This enables VRR when you connect devices that support VRR over HDMI such as a games console or PC.

Does the LG CX have anti-glare?

The LG CX, like all the new LG OLED TVs, have been declared as ‘glare free’ by LG.

Rtings.com also reports that the CX handles reflections well in bright rooms but did warn against using it in direct sunlight.

Does the LG CX have burn in issues?

Most users should not have any burn in issues with the LG CX.  This is especially the case if the TV is watched normally and the content is varied.

LG have been very upfront about image retention or burn-in and have stated that it can happen with almost any display, not just OLEDs.

They have also said that it is rare for a consumer to create the conditions that would lead to burn in on one of their TVs.  

For this to be possible, LG stated that users would have to leave static images on their screens for many hours or days at a time and with peak levels of brightness.

Does LG CX support 3D?

The LG CX does not support 3D.

Does LG CX support Dolby Atmos?

The LG CX does support Dolby Atmos and can pass Dolby Atmos signals through to a receiver or soundbar using HDMI eARC.

Does the LG CX need a soundbar?

The speakers on the LG CX are okay, but flat panel TVs don’t tend to have enough space for decent sized speakers, so it’s recommended to get a soundbar.

That being said, you do get a 40W speaker system in total including a 20W subwoofer (2.2 channels).

The TV also includes an AI Acoustic Tuning setting which uses the microphone on the remote to calibrate the sound.

The LG CX also supports Dolby Atmos.

Is the LG CX compatible with the Sonos Arc?

The LG CX is compatible with the Sonos Arc.

But some users have reported that the audio drops out intermittently when connected via HDMI/eARC.  

Although not ideal, as a work around, it can be solved by disabling eARC in the TV settings.

How many speakers are on the LG CX?

The LG CX has a 2.2 channel speaker system which is two speakers and a subwoofer and is front-firing.

Does the LG CX have Chromecast?

The LG CX does not have a Chromecast built-in because LG runs their own OS called WebOS instead of the Android TV platform.  

So you’d need to connect an external Chromecast.

Alternatively, the LG CX does have a Smart Share tool which enables you to cast whatever is shown on an Android smartphone.

For Apple devices, the LG CX supports AirPlay 2.

Does the LG CX have a camera?

The LG CX does not have a built-in camera.

How many HDMI ports does the LG CX have?

The LG C1 has four HDMI 2.1 ports.

Does the LG CX have HDMI 2.1?

The LG CX has four HDMI 2.1 ports but they only support 40 Gbps of bandwidth and not the 48 Gbps of bandwidth provided by the ‘full-fat’ version of HDMI 2.1.

This shouldn’t be a problem in most cases because most content only goes up to 10-bit color.  

Very high end gamers will be affected by this, but visually, it can be difficult to tell the difference between 10-bit and 12-bit color.

Does the LG CX have eARC?

Enhanced Audio Return Channel (eARC) is supported on HDMI 2.

The LG CX can receive and pass a Dolby Atmos signal through to a receiver using eARC via TrueHD.

But, the LG CX is unable to pass a DTS:X signal to a receiver via HDMI eARC via ​​DTS-HD MA.

Does LG CX have bluetooth?

The LG CX supports bluetooth version 5.0 and is also “bluetooth surround ready”.

Bluetooth surround ready enables the TV to transmit surround sound to a bluetooth audio device such as a soundbar.

Does the LG CX have a headphone jack?

Yes, the LG CX has an analog audio 3.5mm headphone output.

Does the LG CX have component input?

The LG CX does not have a component input, but it does support an AV input.

But in order to use the AV Input, you’ll need to buy a separate breakout cable as it’s not included with the TV.

You can find one of these cables on Amazon like this one (#ad).

How many USB ports Does the LG CX have?

There are three USB 2.0 ports on the LG CX – two at the rear and one to the side.

Does the LG CX have Digital Optical Audio Out?

There’s a Digital Optical Audio Output on the rear of the LG CX.

Does the LG CX have DisplayPort?

The LG CX does not have a DisplayPort input.

What Is the difference between the LG CX and LG C1 (key differences)?

The LG C1 is newer than the LG CX and replaces it.  Although the TVs are similar, here are the main differences:

  • Prices on the LG CX have dropped significantly since the introduction of the LG C1.
  • The LG C1 has the latest and faster Gen 4 AI-enhanced processor.  It helps to improve contrast and is more effective at upscaling standard definition content.
  • The LG C1 has an input lag boost mode to further reduce input lag and a ‘Game Optimiser’ interface allowing tweaks to be made on a per-game basis.
  • The LG C1 runs the new webOS 6.0 whilst the CX uses webOS 5.0.
  • The LG C1 comes in a larger 83 inch variant.

Is the LG CX good for gaming?

The LG CX is a solid choice when it comes to gaming, especially on the Xbox Series X.

At the time of writing, there’s an imminent firmware update that enables Dolby Vision gaming at 120Hz, like the support that has been recently added to LG C1 and the LG G1.

In terms of gaming features, you get things like Variable Refresh Rate (VRR) support, HDMI 2.1 support on all four HDMI inputs, and a 120Hz panel.

HDMI 2.1 means that it will support 4K gaming up to 120Hz on games consoles such as the Xbox Series X or the PS5.

The Auto Low Latency Mode on the CX means that it will switch to gaming mode automatically when a compatible device is connected.

In gaming mode, input lag is 6.7ms at 4K and 120Hz which is incredible.  

With a Variable Refresh Rate, the input lag remains low at 5.9 ms at 4K (according Rtings.com).

Is the LG CX good for sports?

The LG CX is very good for watching sports, even with a large group of people watching because it has wide viewing angles.

The LG CX also delivers exceptional picture quality due to the near-infinite contrast ratio that produces perfect, inky blacks.

Although OLED TVs aren’t as bright as LED TVs, the LG CX still performs well in bright environments because of its excellent reflection handling.

This is particularly welcome news for sports fans that might want to watch games in well-lit rooms during the day time.

Is the LG CX an Android TV?

The LG CX is not an Android TV and does not run the Android Operating System (OS).

LG TVs run the Linux-based webOS which is LG’s own Operating System.

Does the LG CX have Airplay?

The LG CX has support for Apple Airplay 2 and has the Apple TV app pre-installed.

Does the LG CX have Apple TV?

The LG CX has the Apple TV app pre-installed and also works with the Apple Airplay 2 system.

When did LG CX come out?

The first LG CX model was released in March 2020. 

Is the LG CX or C1 newer?

The LG C1 is the successor to the LG CX and is newer.  

Overall, they are very similar TVs, with a few differences such as an upgraded OS on the C1 and new game optimization settings.  

But given the C1 is now available, the CX may offer slightly better value.

How much Does LG CX weigh?

Here’s the weights for the LG CX in all four screen sizes:

TV ModelWeight with standWeight without stand
LG CX 77-inch79.1 lbs58.9 lbs
LG CX 65-inch71.9 lbs52.9 lbs
LG CX 55-inch50.7 lbs41.7 lbs
LG CX 48-inch41.7 lbs32.8 lbs

Does the LG CX come with a stand?

Yes, the LG CX comes with a wedge-shaped, table-top stand.

Does the LG CX have ATSC 3.0?

The LG CX does not have an ATSC 3.0 tuner.  

The 55 inch, 65 inch and 77 inch GX Gallery Series 4K Ultra HD models have the necessary built-in hardware to support NextGen TV.

Does the LG CX have gallery mode?

The LG CX has the ability to display various pieces of artwork which makes the TV look like a piece of artwork hanging on a wall.

One issue that users have complained about is that the gallery mode overlays a “no signal” message over the top of the artwork when there’s no terrestrial signal.

Whilst there’s currently no way to remove this, it is possible to use the gallery app and shuffle through the pictures without it displaying the “no signal” message.

Does the LG CX have a screensaver?

The screensaver will come on after about two minutes of inactivity.

In addition to a screensaver, there are some additional features to help preserve image quality and prevent burn in.  These are:

Clear Panel Noise feature – clears the pixels and wipes away any image retention

Screen Shift feature – preserves image quality by moving the screen slightly at regular intervals.

Logo Luminance Adjustment – detects logos and reduces brightness to help protect against permanent burn-in issues.

Does the LG CX have Google Assistant?

The LG CX does have Google Assistant built-in.

This enables you to control the TV without having to use an additional device such as a Google Mini.

Get the latest price for the LG CX on Amazon (#ad)


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Robert Anderson

Robert Anderson

Robert Anderson, the founder of Tech Parasol, had a keen interest in tech from a very young age. He studied Electronic Engineering at University and then went on to become a Software Developer. He launched Tech Parasol in 2021 to share his knowledge with the aim of making tech easier to understand for everyone.