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    XBR-55X850D
    A 55-inch LCD Ultra HD TV with an LED backlight from Sony, with 2160p resolution, a 960-hertz refresh rate, 4 HDMI inputs, and 1 component-video input.
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    * This Model May Have Limited Distribution

    Description
    A 55-inch LCD Ultra HD TV with an LED backlight from Sony, with 2160p resolution, a 960-hertz refresh rate, 4 HDMI inputs, and 1 component-video input.

    CR Expert Take

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

    What goes into the Overall Score?

    Ratings Scorecard

    OWNER SURVEYS

    Predicted Reliability
     /  5
    Owner Satisfaction
     /  5

    EXPERT LAB TESTS

    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

    PICTURE QUALITY. It did an excellent job displaying the finest detail. Color accuracy was very good, with image content, and flesh tones in particular, looking natural. Contrast—the difference between the darkest blacks and brightest whites—was good, so images had depth and dimension, typical of most models we test. The brightness level was good, making it a suitable choice for most rooms. Black levels were only fair with darker areas of the image looking unnaturally illuminated. Dark scenes, in particular, were lacking in contrast. In scenes with subtly shaded light-to-dark areas, such as a sky during sunset, the model did a very good job producing a smooth transition without distinct, coarse bands. There was slight display non-uniformity that created brighter cloudy areas most noticeable on very dark scenes (or in the black bars of a letterboxed movie). We routinely see this issue with LCDs and severity can vary from model to model. Check your model and see if you find it a problem. The deinterlacing and film mode operations were excellent on HD content; there was little or no trace of jaggies on the edges of objects for video and film-based 1080i video content, such as from cable.

    VIEWING ANGLE. This Sony has a wide viewing angle overall, better than that of most TVs. It will provide the same picture quality, with fewer problems than most TVs, for typical viewing conditions—say, if your family is seated across a long sectional or in chairs off to the sides. With brighter scenes, this model did a fine job maintaining accurate colors and contrast as we viewed it from the sides. The picture did show some dimming from the sides but not to any point we found distracting. With dark scenes this model didn't fare quite as well. When viewed from the sides, the depth of black levels varied depending on the vertical position of the viewer's head. As we moved closer to the screen this limitation became even more apparent, especially if seated on the floor looking upward where black levels brightened significantly. This model's wide horizontal viewing angle is best appreciated when the TV's picture is viewed at eye level.

    ULTRA HD PERFORMANCE. Overall, excellent. This Sony UHD TV delivers full 4K picture detail, but HD-to-UHD upconversion falls short. All native 4K content we played on this model, including movies and test videos was presented in full detail with excellent image fidelity when played back via the TV's HDMI input. This TV supports HDR (High Dynamic Range), but its effectiveness was hampered by the display's limited peak brightness. The TV does not support the Dolby Vision's version of HDR, but did recognize our HDR10 format clips when played via the TV's USB port, which automatically triggered its "HDR-video" picture mode. However, getting the TV to recognize HDR from our 4K player (Samsung UBD-K8500) via the TV's HDMI port is not so easy. This requires going into the TV's menu to set the HDMI signal format mode to "Enhanced" which is not a friendly process. The TV should do this automatically, and we hope a future firmware update will address this. The ability of the display to reproduce extended colors was apparent from our test images. This model also supports video streaming of 4K programs via both Netflix and YouTube (among other sources), and images were finely detailed. Using the TV's USB port, we were able to play back 4K videos stored on a flash drive which were encoded in both the HEVC and VP9 formats, as well as MP4. High-resolution photos were displayed in full 4K detail, and like the videos, revealed great clarity, taking full advantage of UHD's extra resolution. When playing 1080p movie content from a Blu-ray disc, we found the TV's HD-to-UHD up-conversion processing fell short of the best we've seen, with edges along diagonals of image content showing more jaggies than we expect. All four of the TV's HDMI inputs comply with the latest HDMI 2.0 and HDCP 2.2 specifications that support play back for 4K video at 60Hz, and copy protection, a requirement for compatibility with 4K movie play back devices such as a 4K Blu-ray player.

    MOTION BLUR. This Sony TV has very good motion performance, with minimal blurring on our motion tests, thanks to Sony's "Motion flow". This feature is designed to reduce motion blur, a shortcoming of most LCD displays.

    SCREEN REFLECTIVITY. Though not as mirror-like as on some models, this screen surface is glossy and therefore susceptible to reflections from a nearby lamp or window. The screen is dark so it does a good job reducing glare from ambient light and maintains contrast even in a bright room.

    SOUND QUALITY. This model has good sound quality; about average among the models we've tested. When watching a movie blockbuster, a concert, or TV show, it delivers decent performance but falls short of the better performers. With movies, dialog was generally clear and natural sounding and remained well balanced with respect to background music and other sounds. Bass was decent, which added some fullness to the sound, and treble was nicely detailed, while the overall sound was a bit closed in. The speakers produced a good volume—so this model should play sufficiently loud in typical room environments and without obvious distortion. Also, at higher volume, dynamic compression kept the sound from distorting, but also limited the clarity of peaks in loudness, which was a bit distracting on some audio content. Most people would find this sound quality acceptable.

    EASE OF USE. Overall, it was very easy to setup and OK to do routine things. On first power up there is an on-screen guide that helps you through setting up the TV.

    STAND ASSEMBLY. The TV's base does not come pre-attached, so some assembly is required. Mounting the support stand to the TV is fairly straightforward, but does use more than a few parts.

    INTERNET FEATURES. This TV provides advanced Internet capabilities via its "Android TV" portal with access to a library of applications. Movie streaming services include: Netflix, Amazon, Hulu Plus, Vudu, YouTube, HBO Go, Google Play Movies & TV, PlayStation Video.

    CONNECTIONS. This model has four HDMI inputs—one supports MHL (Mobile High-definition Link), one composite input, and one "component/composite shared" input (which means you can only use one type or the other at a time). It also has 3 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, to control the TV from a smartphone that has the suitable app installed. Screen mirroring, where the image on your smartphone or other compatible device can also appear on the TV. Note: HDMI and other cable connections made to the rear-facing panel will protrude beyond the panel's slim depth.

    INCLUDED IN THE BOX. A printed user manual. A quick start guide. An electronic manual in the TV's menu. A remote control with batteries. 1 USB IR Extender. Power brick.

    About

    The Sony XBR-55X850D is a 55-inch LCD Ultra HD TV with a native resolution of 3840x2160 (2160p). Rather than the basic 60Hz, it has a faster 960Hz frame rate, a feature designed to reduce motion blur.

    It is Internet-enabled and can access online content, including movie streaming and other services. The TV 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 one component-video input, which also doubles as a composite-video input. It also has three USB ports, which may be used to play media--photos, videos, and music--stored on a flash drive.

    The Sony XBR-55X850D measures 30.38 inches high by 48.5 inches wide by 10.38 inches deep, including its base. The panel itself is 1.75 inches thick including any protrusions, and the screen has a glossy finish. The bezel framing the screen is gloss black.

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

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