When comparing Samsung MU9000 55" (UN55MU9000) vs LG B7A OLED 55" (OLED55B7A), the Slant community recommends LG B7A OLED 55" (OLED55B7A) for most people. In the question“What are the best TVs?” LG B7A OLED 55" (OLED55B7A) is ranked 4th while Samsung MU9000 55" (UN55MU9000) is ranked 34th. The most important reason people chose LG B7A OLED 55" (OLED55B7A) is:
The B7A is the perfect choice for HDR content. On top of its exceptional picture quality with perfectly deep blacks, it has everything essential to an excellent HDR experience: an OLED panel, wide color gamut, and high peak HDR brightness levels. Shadow details are perfect and highlights are really stunning, making for an immersive experience. The OLED panel can manipulate pixels individually, which means it has control over every tiny bit of the picture. The panel can also reproduce the colors necessary for true HDR, and these colors will really pop thanks to its high peak brightness level of ~700 nits.
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Pro Great picture quality
The MU9000 can produce really detailed pictures, especially in dark scenes thanks to its really deep black levels. It has a contrast ratio of about 6000:1, which enables it to produce blacks that are 6000 times darker than the brightest white.
The colors are lifelike and accurate even without any calibration by the user. They will look really vibrant even in bright scenes because of the panel’s high peak brightness levels of ~400 nits for SDR & ~450 nits for HDR.
Even in a decently-lit environment, the MU9000's picture quality can still hold up - the panel is excellent at handling reflections thanks to its glossy finish, and it can get bright enough to fight off glare.
Pro Good for HDR content
On top of its great picture quality, the MU9000 has a high HDR peak brightness level and wide color gamut that makes it good for HDR.
Shadows look pretty good with nice details, and highlights are quite vibrant thanks to the peak brightness level of ~450 nits.
The panel can reproduce the wide range of colors required for true HDR playback because of its wide color gamut, which covers ~60% of the standard colors required for HDR according to the Rec. 2020 color space. This is considered decent enough for reproducing HDR details, and it can display these colors accurately at different brightness levels.
It’s worth noting that while the MU9000 has local dimming that’s supposed to make HDR better, the local dimming is worthless and doesn’t do much. It increases the contrast ratio by a meager amount and does nothing else.
Pro Excellent at handling glare
The MU9000's panel has a glossy finish that reduce reflections significantly. This makes it excellent at fighting glare, along with its adequate brightness levels of ~400 nits for SDR & ~450 nits for HDR.
Pro Suitable for gaming and watching sports
The MU9000 is pretty versatile. On top of its great picture quality, it has features that makes it perform quite well for gaming and sports.
It offers a responsive and fluid gaming experience . Players will have no issues keeping their actions in sync with what’s on the display, and fast-moving objects won’t leave any trails on the screen. That is thanks to the low input lag of ~25ms and the panel’s quick response time of ~15ms, which virtually eliminates motion blur.
It’s also great for watching sports because of the almost non-existent motion blur that makes fast-moving objects look smooth. The panel is also pretty uniform meaning it has no issues with displaying large, same-color objects on screen, like football fields.
Pro Inputs are very accessible
The MU9000 comes with a OneConnect box which moves all the hard-to-access rear inputs away from the TV. Thanks to this, you’ll always have full access to all inputs and outputs of the TV even if it’s wall-mounted. The OneConnect box can also be used as a USB charging hub.
Pro Intuitive user interface
The MU9000 runs on the Tizen smart platform, known for its simplicity and intuitiveness.
It’s easy to navigate and access all the functions of features of the TV. The Tizen OS menus are organized around the “Smart Hub” which contains everything: apps, settings, input switching and others. It also has a section for quick access to frequently used items.
Pro Remote has a voice command feature
The MU9000's remote has a voice command feature that can perform actions as you physically would with the remote, and it can even be used to adjust settings directly.
Pro Great at upscaling low-res content
The MU9000 can upscale 480p, 720p, and 1080p content to 4K quite well. The upscaled content has almost no noticeable artifacts, and all the details are preserved.
Pro Capable of smooth 24p content playback
The MU9000 is great at dealing with 24p content, such as Blu-rays or media sourced from an cable or satellite box. It can detect and eliminate the judder effect present in these content, where images displayed can appear jittery.
Pro Perfect for HDR content
The B7A is the perfect choice for HDR content. On top of its exceptional picture quality with perfectly deep blacks, it has everything essential to an excellent HDR experience: an OLED panel, wide color gamut, and high peak HDR brightness levels.
Shadow details are perfect and highlights are really stunning, making for an immersive experience. The OLED panel can manipulate pixels individually, which means it has control over every tiny bit of the picture.
The panel can also reproduce the colors necessary for true HDR, and these colors will really pop thanks to its high peak brightness level of ~700 nits.
Pro Great at handling reflections
The B7A is great at handling reflections. It can fight glare pretty well in bright environments, thanks to its anti-reflective coating on the panel.
Pro Interface is intuitive and user-friendly
The B7A runs on the webOS smart platform, known for its intuitive and fully customizable UI. It’s built around a Launch Bar that provides quick and easy access to the TV's apps, settings, and inputs. This can be customized and re-organized to the user's liking.
Pro Wide viewing angle
The B7A looks good from almost any angle thanks to its OLED panel, making it a great choice if you usually watch the TV with large groups of people.
Its viewing angle is wide enough for a group of audience to experience more or less similar picture quality when watching from multiple angles off the center of the screen. The black levels and brightness only starts degrading at ≥75°, which means the picture quality will stay roughly the same no matter which angle the screen is viewed from.
Pro Great color reproduction
The B7A can reproduce a really broad range of colors that are crucial for HDR, which also means it has zero issues with SDR colors.
It’s capable of reproducing ~70% of the standard colors for 4K HDR, the Rec. 2020 colorspace. This is one of the highest in the 4K TVs market.
It can also display these colors at different brightness levels accurately that conveys much more HDR details than its direct competitors can.
Pro Extremely versatile
Apart from games, the B7A is great for movies and sports. Its top-notch picture quality, combined with the features it offers, makes it perform really well across different kinds of use cases.
Movies look excellent thanks to the exceptional picture quality, and it’s also a great pick for watching sports because the motion blur is non-existent and the panel is really uniform.
It has near-perfect pixel response time of ~1.0ms, resulting in virtually no motion blur, so fast-moving objects like football don’t leave any trails on the screen. The panel is also uniform enough that it has no issues with displaying large, same-color objects on screen, like football fields.
Pro Good value for money
While the B7A can seem rather expensive, the picture quality and features it offers is top-of-the-line and can’t be beaten. The performance easily outclasses all other TVs in this price bracket.
Pro Suitable as a computer monitor
The B7A can display clear and crisp images from a computer thanks to its full 4:4:4 color support. Because of this, text or shapes with clear, hard edges won’t be blurry.
Pro Excellent at handling dynamic content
The B7A can display extremely fast-moving objects smoothly without any blur or lag, thanks to its OLED panel that has near-perfect pixel response time of ~1.0ms.
Pro Excellent for gaming
The B7A is excellent for gaming thanks to its really low input lag and near-perfect pixel response time that gives it virtually no motion blur.
It’s perfect for all types of games, even fast-paced action games. The experience will be really responsive and fluid. Players will have no issues keeping their actions in sync with what’s on the display thanks to the really low input lag of ~20ms, and fast-moving objects won’t leave any trails on the screen because the panel has a response time of ~1.0ms - it can fully change its pixels color in that tiny amount of time.
Pro Remote is well-designed
The B7A comes with LG's Magic Remote, touted for its easy-to-use design.
It works similarly to a Nintendo Wii remote where the on-screen cursor follows the remote's movement, making it easy to navigate the UI and select menu items.
The remote also has a built-in microphone for the voice command feature, which also supports content searching with voice input.
Pro Excellent for HDR gaming
The B7A’s input lag remains low at ~20ms even when gaming in 4K @ 60Hz + HDR, making for an really immersive and responsive HDR gaming experience.
Pro Smart platform has great ecosystem of apps
The B7A runs on the webOS smart platform. It has a great ecosystem of apps, ranging from media streaming services (Netflix, Amazon, YouTube, etc.) to third-party apps. Support for these apps are also first-class with up-to-date features and good performance; for instance, the YouTube app supports 360-degree video playback.
Pro Exceptional picture quality
The B7A's picture quality is top-of-the-line. It has an OLED panel that gives it infinite contrast ratio, excellent screen uniformity, high peak brightness, wide viewing angle, and great handling of reflections.
Thanks to that, it can reproduce blacks perfectly and the uniformity is top-notch - they’re truly dark and even, because the OLED panel has the ability to manipulate pixels individually.
Colors really shine and look true-to-life, thanks to the peak brightness levels peak of ~400 nits for SDR & ~700 nits for HDR.
The picture quality also doesn't suffer from much deterioration when viewed from any angle because the panel has a really wide viewing angle. It’s also capable of maintaining the same picture quality in bright environments, thanks to its high peak brightness levels and great handling of reflections.
Con Mediocre sound quality
The sound quality of MU9000's built-in speakers is mediocre. It sounds quite bassy and the clarity is reduced at higher volumes - you might have a hard time following dialogues at higher volumes because of this. There’s also distortion at higher volumes.
Con Not suitable for group watching
The MU9000 has a narrow viewing angle that makes it unsuitable for watching with groups.
Audience sitting away from the center of the screen will not experience the same picture as those sitting in the center, because the picture quality starts to deteriorate significantly when viewing from just ≥20° away from the screen's center - the colors will start looking dull and blacks will look like greys.
Con Lacks support for Dolby Vision
The MU9000 currently only supports the HDR10 format for HDR content.
Con Interface has ads
There are ads that can't be removed on the MU9000's interface.
Con Not a good value for money
The MU9000 is a great TV, but the retail price can be off-putting for some because the picture quality and features it offers are present in other similarly-priced models, e.g. the Sony X900E. This TV can be really worth it when on sale, or if Samsung offers better after-sales service in your region.
Con May require some color calibration out of the box
Out of the box, the B7A’s white balance might look slightly off to some viewer, so a brief calibration might be required if you notice it. Fortunately, all the optimal color settings are available on the internet and isn’t hard to find.
Con Interface has ads
The B7A's interface includes ads that can’t be removed - there’s no option to disable it. Ads on this TV can be really annoying when compared to other smart TVs because they're almost everywhere. There are video ads in LG's Content Store, apps menu, and even voice search results.
Con Below average sound quality
The sound quality of the B7A's built-in speakers is below average. It can't get very loud with the max volume peaking at ~85db, and sound quality it offers does not match the picture quality.
Con Suffers from image retention issues
The main drawback of OLED panels are image retention issues with static images - pixels on the panel gets burned in when the picture doesn't change for extended periods of time. This usually happens with content that has a static image anywhere on the screen, like the logo of TV channels.
As the B7A has an OLED panel, it unfortunately suffers from this problem. There might be some retainment of artifacts for ~15 minutes when this happens, and it usually goes away after watching other content without static images.
There are some cases where normal content won't cut it, which usually happens when the static image has been there for more than some hours. Fortunately, the B7A has a “Pixel Refresher” feature that can recalibrate the screen, which should get rid of any remaining artifacts.