The LG CX OLED is an excellent high-end TV. It's part of LG's popular OLED lineup, sitting behind the LG GX OLED, and it delivers the same exceptional picture quality as other options. It can turn individual pixels off, which results in a near-infinite contrast ratio for perfect blacks, and there's no blooming around bright objects. It's packed with gaming features like variable refresh rate (VRR) support, HDMI 2.1 inputs, and a 120Hz panel with a near-instantaneous response time. It also performs well in bright environments as it has fantastic reflection handling, but its SDR brightness is just decent. Sadly, OLEDs have the risk of permanent burn-in, which can be caused by constant exposure to static elements, but we don't expect this to be an issue for most people. We also tested the 48 inch as a monitor, which you can read about here.
Our Verdict
The LG CX is excellent overall. It's fantastic for dark room viewing because it has a near-infinite contrast ratio and perfect black uniformity. Gaming is incredible thanks to the 120Hz panel, HDMI 2.1 inputs, and VRR supports. It has wide viewing angles, making it a great choice for watching TV shows and excellent for sports with a large group of people. It's also excellent for watching HDR content as it displays a wide color gamut, but it may not get bright enough to make highlights really pop.
- Near-infinite contrast ratio.
- Wide viewing angles.
- VRR support.
- Displays wide color gamut.
- Risk of permanent burn-in.
- Only decent HDR peak brightness.
The LG CX OLED is fantastic for watching movies in a dark room. With its OLED screen, it can produce perfect blacks, which is amazing for watching movies in the dark. It upscales 1080p content well, it can remove judder from 24p sources like Blu-ray players, and has a near-instantaneous response time, but unfortunately, that makes some content appear to stutter.
- Near-infinite contrast ratio.
- Perfect black uniformity.
- Removes 24p judder from any source.
- Lower-frame rate content stutters.
The LG CX is great for watching TV shows in bright rooms. It has fantastic reflection handling, but it doesn't get bright enough to combat a ton of glare in well-lit rooms. It has wide viewing angles for when you want to watch your favorite show with the entire family. Also, it upscales 720p content without any issues. Unfortunately, like all OLED TVs, it has the risk of burn-in, which could be a problem with constant exposure to static logos.
- Wide viewing angles.
- Fantastic reflection handling.
- Upscales lower-resolution content well.
- Doesn't get bright enough to combat glare.
The LG CX OLED is excellent for sports in well-lit rooms. It has fantastic reflection handling, but its peak brightness is just decent. It also has wide viewing angles, great for watching the game with a group of friends. It has a near-instantaneous response time that makes fast-moving content look smooth, and there's no dirty screen effect in the center.
- Wide viewing angles.
- Fantastic reflection handling.
- Upscales lower-resolution content well.
- Near-instantaneous response time.
- Doesn't get bright enough to combat glare.
The LG CX OLED is incredible for playing video games. The input lag is very low in Game Mode, it has a near-instantaneous response time, and it supports G-SYNC, FreeSync, and HDMI Forum VRR to reduce screen tearing. Unfortunately, static menus in video games could be a problem for an OLED TV, as it has a risk of permanent burn-in. Luckily, it's a great choice for dark room gaming since it can produce perfect blacks.
- Near-infinite contrast ratio.
- Near-instantaneous response time.
- Low input lag.
- VRR support.
- Risk of permanent burn-in.
The LG CX is excellent for HDR movies. The LG CX OLED covers nearly all of the DCI P3 color space used in most HDR content and has good coverage of the wider Rec. 2020 color space. It can produce perfect blacks, remove judder from all sources, and has a near-instantaneous response time. Unfortunately, its HDR peak brightness is just decent, and some highlights may not pop as intended.
- Near-infinite contrast ratio.
- Perfect black uniformity.
- Displays wide color gamut.
- Only decent HDR peak brightness.
The LG CX OLED is fantastic for HDR gaming. It has a ton of gaming features like a low input lag, VRR support, and a very quick response time. Also, it displays a very wide color gamut in HDR and has a near-infinite contrast ratio. Unfortunately, its HDR peak brightness in Game Mode is only okay, and it can't display very bright colors either.
- Near-infinite contrast ratio.
- Low input lag.
- VRR support.
- Displays wide color gamut.
- Risk of permanent burn-in.
- Only decent HDR peak brightness.
The LG CX is excellent to use as a PC monitor. It has low input lag and a quick response time for a smooth and responsive desktop experience. Even though it doesn't get extremely bright, visibility shouldn't be an issue due to the fantastic reflection handling. Unfortunately, OLEDs have the risk of permanent burn-in, which can be caused by constant exposure to static elements.
- Wide viewing angles.
- Fantastic reflection handling.
- Near-instantaneous response time.
- Low input lag.
- Doesn't get bright enough to combat glare.
- Risk of permanent burn-in.
Changelog
- Updated Sep 26, 2025: We uploaded the latest brightness measurements and uniformity photos for the Accelerated Longevity Test.
- Updated Jul 08, 2025: We uploaded the latest brightness measurements and uniformity photos for the Accelerated Longevity Test.
- Updated Apr 17, 2025: We uploaded the latest brightness measurements and uniformity photos for the Accelerated Longevity Test.
- Updated Feb 11, 2025: We uploaded the latest brightness measurements and uniformity photos for the Accelerated Longevity Test.
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Differences Between Sizes And Variants
We tested the 55 inch CX (OLED55CXPUA) and we expect our results to be valid for the 65 inch (OLED65CXPUA), and 77 inch (OLED77CXPUA) models too.
We've also tested the 48CX (OLED48CXPUB) as a monitor. Note that as there are some significant differences between our TV and Monitor test methodology and scoring, many of the results aren't directly comparable between the two.
| Size | Short Model Code | US Model | EU Model | Notes |
| 48" | OLED48CX | OLED48CXPUB | OLED48CX6LB | |
| 55" | OLED55CX | OLED55CXPUA | OLED55CX6LA | |
| 65" | OLED65CX | OLED65CXPUA | OLED65CX6LA | |
| 77" | OLED77CX | OLED77CXPUA | OLED77CX6LA |
If someone comes across a different type of panel or if their LG CX OLED doesn't correspond to our review, let us know and we'll update the review. Note that some tests like the gray uniformity may vary between individual units.
The LG CX we reviewed was manufactured in February 2020, and you can see the label here.
Popular TV Comparisons
The LG CX OLED is an excellent all-around TV and one of the best on the market. It performs similarly to any other OLED TV with good gaming features and has better dark room performance than any LED TV.
See our recommendations for the best TVs, the best OLED TVs, and the best movie TVs.
The LG C5 OLED is a huge upgrade over the older LG CX OLED. The C5 is noticeably brighter in HDR and SDR, has more vibrant colors, and is the better TV for PC gamers due to its 4k @ 144Hz support on all of its HDMI ports; the CX is limited to 4k @ 120Hz.
The LG CX OLED and the LG B5 OLED deliver nearly identical picture quality, and there are no significant differences between them. Both TVs deliver the same perfect inky blacks in a dark room, with similar peak brightness and similar colors. Since it's a more modern TV, the B5 has a much more recent smart interface and better app support, and as it's part of LG's Re:New program, it'll continue to receive updates for much longer, whereas the CX only receives minor updates now.
In terms of picture quality, the LG GX OLED and the LG CX OLED are two very similar TVs and any differences come down to panel variance. Our unit of the CX has much better color accuracy, better gradient handling, and it gets slightly brighter. However, our unit of the GX has wider viewing angles. The major difference between them is that the GX comes with a wall mount that makes it sit flush against a wall, while the CX comes with a stand.
The LG C1 OLED replaces the LG CX OLED, and overall they're very similar TVs. The biggest differences are that the C1 comes in a larger 83 inch variant, has the newest version of webOS, and includes new 'Game Optimizer' settings, including an input lag boost that reduces input lag by a few milliseconds. Our unit of the C1 has poor out-of-the-box color accuracy and lower brightness compared to the CX, but this could just be due to panel variation. All things considered, if none of the minor additions are essential to you, the CX may offer a slightly better value.
We buy and test dozens of TVs yearly, taking an objective, data-driven approach to deliver results you can trust. Our testing process is complex, with hundreds of individual tests that take over a week to complete. Most of our tests use specially designed test patterns that mimic real content, but we also use the same sources you have at home to ensure our results match the real-world experience. We use two main tools for our testing: a Colorimetry Research CR-100 colorimeter and a CR-250 spectroradiometer.
Test Results
Older Test Bench: This product has been tested using an older TV test methodology, before a major update. Some of the test results below aren't directly comparable with other TVs. Learn more
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