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    OLED55C9AUA
    A 55-inch OLED 4K UHD TV from LG, with 2160p resolution, four HDMI inputs, no component-video inputs, and three USB ports. This TV is internet enabled.
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    * This Model May Have Limited Distribution

    Description
    A 55-inch OLED 4K UHD TV from LG, with 2160p resolution, four HDMI inputs, no component-video inputs, and three USB ports. This TV is internet enabled.
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    We investigate, research and test so you can choose with confidence.

    Become a member to compare products & get access to ratings.

    We investigate, research and test so you can choose with confidence.

    Become a member to compare products & get access to ratings.

    We investigate, research and test so you can choose with confidence.

    CR Expert Take

    How did it perform in our owner surveys and expert lab testing?

    Overall Score

    The Overall Score for this model incorporates our expert lab test results, as well as ratings for that brand’s reliability and owner satisfaction from our annual product owner survey of members.
    Unlock ratingswith membership.
    Current Range of Tested TVs

    What goes into the Overall Score?

    OWNER SURVEYS

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    Predicted Reliability
     /  5
    Owner Satisfaction
     /  5
    HD picture quality
     /  5
    UHD picture quality
     /  5
    HDR
     /  5
    Viewing angle
     /  5
    Motion blur
     /  5
    Sound quality
     /  5
    Versatility
     /  5
    Data privacy
     /  5
    Data security
     /  5
    Ultra HD Picture Quality
     /  5
    Ultra HD performance
     /  5
    Color
     /  5
    Screen size (in.)
     /  5
    TV resolution type
     /  5
    Display type (Backlight)
     /  5
    Internet-enabled
     /  5
    Energy cost/yr. ($)
     /  5

    Detailed Test Results

    HD PICTURE QUALITY. HD picture quality is excellent. Reproduction of fine HD image detail is excellent. Color accuracy is excellent, so colors, especially flesh tones, look very natural and lifelike. Excellent contrast—the difference between the darkest blacks and brightest whites—gives images great depth and dimension. Excellent deep black levels are among the best we've seen, giving dark scenes great depth. This is among the brightest models we've tested (with the OLED light setting turned up), so the picture is well suited for a very sunny room. A lower setting is recommended for a dimmer viewing environment. In scenes with subtly shaded light-to-dark areas, such as a sky during sunset, the model does a very good job producing a smooth transition without distinct, coarse bands. Film mode operation for HD film-based content is excellent, with no visible jaggies along the edges of objects during motion scenes. Deinterlacing is very good, with minimal jaggies visible when converting 1080i video content, such as from cable, to the display's native resolution.

    4K UHD PICTURE QUALITY. 4K UHD picture quality is excellent. All native 4K content (non HDR) we played on this model, including movies and test videos, is presented in full 4K detail with excellent fidelity when played back via the TV's HDMI input. For color, contrast and black level, the TV performs similarly to its HD picture quality.

    HIGH DYNAMIC RANGE (HDR) PERFORMANCE. HDR performance is very effective. The display's high peak brightness capability helps better reproduce the realism of 4K content mastered with HDR. The contrast between moderately bright and very bright highlights within a scene is excellent, while the brightness levels in the mid-to-lower tones, like those in an indoor scene, are slightly low. It does a good job reproducing a greater range of nuanced shadow detail from black to white, with no obvious banding on areas of the image that have subtle shade variations. There is no visible loss of detail within the highlights of the brightest areas. Brighter colored objects remain nicely saturated.

    VIEWING ANGLE. The overall viewing angle on this display is unlimited, better than most TVs we've tested. Contrast and depth of black level shows little or no variation depending viewing position. When we view the TV from the sides the picture shows a slight shift in color tone, but overall color remain consistent with no degradation in overall image quality. When viewing the image from above or below eye level to the screen, the vertical viewing angle is excellent. The picture shows no significant change in color, contrast, and black level.

    MOTION BLUR. This LG TV has very good motion performance, with minimal blurring on our motion tests thanks to LG's "TruMotion." This feature is designed to reduce motion blur, a shortcoming of most displays. Although this TV includes a "OLED Motion" setting that is slightly effective at reducing motion blur it limited the brightness of the image and also added some flicker to the picture, so we left the feature off.

    SOUND QUALITY. This model has very good sound quality, better than most models we've tested. Whether you're watching a blockbuster movie, a concert, or TV show, it is able to deliver a satisfying listening experience. Bass is deep, providing satisfying fullness to the sound but lacking in definition a bit, and treble is nicely detailed, while the overall sound is a bit closed in. The speakers can play at a fairly loud volume level and without obvious distortion. Unlike most of our tested models its sound should satisfy the more discerning listeners, so give this a listen before opting for an external sound bar.

    EASE OF USE. On first power up there is an on-screen guide that helps you through setting up the TV. LG’s Blue-tooth remote allows you to navigate on-screen menus using either a traditional button key pad or a gesture-controlled on screen cursor. Using a point-and-click operation, the cursor’s movement is linked to the motion of your hand and is used to make selections. It includes a built-in microphone to access the voice assistant feature. It also provides convenient direct button access to streaming services including Netflix and Amazon Prime Video. Consider the TV's stand is 39 inches wide when choosing a table top to place it on.

    INTERNET FEATURES. This Smart TV provides Internet functionality via its "WebOS" portal with access to a library of applications, and a full Web browser. Movie streaming services that can be downloaded to this TV, or are built-in, include Netflix, YouTube, Amazon Prime Video and Hulu. Includes built-in Google Assistant, a virtual assistant, which allows you to use natural speech to ask questions, launch applications, and search programming via the remote's built-in microphone. Support for external voice assistants (not built in to the TV) include: Amazon Alexa, Google Assistant.

    CONNECTIONS. This model has four HDMI inputs—one supports ARC (Audio Return Channel), one composite input, and no component input. It also has three USB ports, an optical digital audio out, a headphone out, an Ethernet port, WiFi wireless networking; DLNA, to access files within your home network; Casting, which allows you to send streaming content from your mobile device to the TV via your home network; Screen mirroring, where the image on your smartphone or other compatible device can also appear on the TV. Analog connections are made via a special breakout cable adapter (included) that attaches to the TV as a single plug.

    WHAT'S INCLUDED. A printed user manual. A quick start guide. An electronic user guide via the TV's menu. A remote control with batteries. Breakout cable adapters (one composite with stereo audio.). A detachable power cord.

    About

    The LG OLED55C9AUA is a 55-inch OLED 4K UHD TV with a native resolution of 3840x2160 (2160p).

    It includes an Ethernet jack allowing for a wired connection to your home network. It is also WiFi capable, so you can connect it to your home network wirelessly. It is DLNA certified, so you can view digital photos stored on a compatible computer, phone, or other mobile device also connected to your home network.

    This TV has four HDMI inputs, and no component-video inputs. It also has three USB ports, which may be used to play media—photos, videos, and music—stored on a flash drive.

    The LG OLED55C9AUA measures 29.1 inches high by 48.3 inches wide by 9.9 inches deep, including its base. The panel itself is 1.8 inches thick including any protrusions.

    The warranty on this model covers parts for 12 months and labor for 12 months.

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