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    40R3B5
    A 40-inch TV from Roku, and with 1080p resolution, 3 HDMI inputs, and one USB port. This TV is internet enabled.
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    * This Model May Have Limited Distribution

    Description
    A 40-inch TV from Roku, and with 1080p resolution, 3 HDMI inputs, and one USB port. This TV is internet enabled.
    Become a member to compare products & get access to digital 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.

    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 expert lab testing?

    Overall Score

    The Overall Score for this model is derived from our expert lab test results.
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    Current Range of Tested TVs
    What goes into the Overall Score?
    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 Picture quality was very good, overall. Reproduction of fine image detail was excellent. Color accuracy was acceptable, but below that of most models. Contrast—the difference between the darkest blacks and brightest whites—in dark scenes was okay, so images had some depth, but it was not the best. Black levels were OK and maintained some contrast in darker scenes, but they fell short of the better TVs. Image brightness was adequate (with the brightness at max), making it a suitable choice for all but the sunniest rooms. Its reproduction of smooth edges on image content. Deinterlacing of 1080i video was excellent. Its frame-rate compensation for 1080i film-based content was excellent.

    VIEWING ANGLE This Roku model has a moderate viewing angle—decent—but not as good as the better-performers. The best viewing position for this model is directly in front. When we viewed the TV from the sides, image quality got worse. the picture showed a slight loss of color. Black levels brightened slightly. Lastly, we viewed the image from above and below center screen, and noticed good vertical viewing angle performance, with only slight changes in color, contrast, and black level.

    MOTION BLUR In our motion tests, this Roku LCD (LED) had good motion performance, with some blurring.

    SOUND QUALITY We got sub-par sound quality, with below average performance. It could be acceptable for typical programming, but its shortcomings would be obvious with movie soundtracks and music. In our listening evaluations, we found the bass (low frequency sound) to be very weak and mostly well defined. Treble (high frequency sound) was very good. The treble was neutral though a bit bright, thin, closed in. This TV is only OK for small, quiet rooms—we found that this TV's sound volume was limited. If sound quality matters to you, you might want to add a soundbar or other external speaker system.

    EASE OF USE Consider the TV's stand is 31 inches wide when choosing a table top to place it on. The remote controls doesn't need to be pointed at the TV. It has a simplified design with a reduced set of buttons. The remote has a microphone use to issue voice commands.

    INTERNET FEATURES This TV provides internet functionality via its "Roku" portal, with access to a library of applications. Movie streaming services that can be downloaded to this TV, or are built-in, include Amazon Prime Video, Apple TV+, BET+, DirecTV, Disney Plus, Freevee, Fubo TV, Hulu, Max/HBO Max, Netflix, Paramount+, Peacock, Pluto TV, Sling TV, Starz, The Roku Channel, Tubi, YouTube, YouTube TV.

    CONNECTIONS This model has 3 HDMI inputs one USB port, and an optical digital audio out, WiFi wireless networking, and AirPlay—for sharing videos, photos, music, and more from Apple devices to the TV.

    WHAT'S INCLUDED A remote control.

    About

    The Roku 40R3B5 is a 40-inch LCD (LED) FHD TV with a native resolution of 1920 × 1080 (1080p). It is also WiFi capable, so you can connect it to your home network wirelessly. It has 3 HDMI inputs and one USB port. It measures 22.5 inches high by 35.75 inches wide by 8.25 inches deep, including its base. The panel itself is 2.5 inches thick including any protrusions.

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