When comparing Sony X900E 49" (XBR49X900E) 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 Sony X900E 49" (XBR49X900E) is ranked 6th. 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 Excellent picture quality
The X900E looks true-to-life with really deep blacks, clear details, and captivating colors.
Pictures look realistic with lots of details. There’s great depth to them and you’ll be able to see everything in the picture stand out.
Dark scenes are excellent with nice shadow details that are not overly dark to the point where some details get drowned out. This is thanks to really deep black levels, enabled by the panel’s contrast ratio of about 5500:1 which means it can produce blacks that are 5500 times darker than the brightest white. This can be pushed even further to over 6500 with local dimming.
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 ~500 nits for SDR & ~550 nits for HDR.
Even in a decently lit environment, the X900E’s picture quality can still hold up as the panel is great at handling reflections and it can get bright enough to fight off glare.
Pro Google Assistant is available
The X900E runs on Android TV that has Google Assistant. It has voice commands that are pretty useful as you can open apps with it, ask for the weather, and even turn the TV off.
Pro Excellent at upscaling low-res content
The X900E can upscale 480p, 720p, 1080p content to 4K with no issues. All the details are preserved and most won't notice any imperfections.
Pro Virtually no reflections
The X900E's panel has a semi-gloss finish that significantly reduces the intensity of glare.
Pro Great ecosystem of third-party apps
The X900E runs on Android TV that has access to the Google Play Store. The Play Store has a nice selection of apps, but normal Android apps won't work unless they support Android TV.
Pro Interface is ads-free
There are no ads on the X900E's interface.
Pro Excellent at handling highly dynamic content
The X900E can display fast-paced or rapidly-moving objects very well without any trails behind it. The panel only requires ~11ms to fully change the pixels color, which eliminates virtually all motion blur. It also has a native refresh rate of 120Hz that makes images look smoother.
Pro Great versatility
Apart from being an excellent TV for movies, the X900E is a decent choice for gaming and sports thanks to its decent input lag, low motion blur, great screen uniformity, and a 120 Hz native refresh rate that makes images look smoother.
The input lag of ~35ms is sufficient for most gamers, apart from competitive ones, to stay in sync with what's on the screen. The low motion blur of ~11ms and a refresh rate of 120 Hz ensures that everything will look smooth - fast-moving objects won't leave any trails on the screen.
It’s also viable for watching sports because the panel also has no issues with displaying large, same-color objects on screen, like football fields.
Pro Great at handling glare
Even in a decently lit room, the X900E's picture quality will remain more or less the same as in a dark room.
The colors will still look vibrant because the panel is bright enough to fight off glare. It has peak brightness levels of ~500 nits for SDR & ~550 nits for HDR, and reflections are also significantly reduced by the panel's semi-gloss finish.
Pro Excellent for HDR content
On top of the excellent picture quality, the X900E has everything essential to an immersive HDR experience: decent local dimming, great coverage of HDR colors, and high HDR peak brightness level.
Its excellent black levels are further improved with local dimming, which can make parts of the screen darker when the image calls for it. This results in an increase in overall picture quality with black levels becoming much deeper, so highlights will stand out further.
The panel can reproduce the wide range of colors required for true HDR playback because of its wide color gamut, which covers ~65% of the standard colors required for HDR according to the Rec. 2020 color space. This is considered great for reproducing HDR details, and it can display these colors accurately at different brightness levels.
Along with the the high peak brightness level of ~550 nits, HDR scenes will look stunning and you'll be able to see HDR details really pop.
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 Bad sound quality
The sound quality of X900E's built-in speakers is bad. It can't produce much bass and sounds rather flat. There is also noticeable distortion at high volumes.
Con Lacks support for Dolby Vision
The X900E currently only supports the HDR10 format for HDR content.
Con Not suitable for group watching
The X900E has a narrow viewing angle that makes it unsuitable for group watching.
Its picture quality gets worse when viewed from off-center angles. At ≥20° away from the center, the blacks start degrading into greys and colors will start looking dull. Brightness levels start decreasing at ≥50° away from the center.
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.