Product Reviews

Welcome to Consumer Reports.

We’re so glad to have you as a member. You now have access to benefits that can help you choose right, be safe and stay informed.

Samsung UN40MU7000 TV


A 40-inch LCD (LED) Ultra HD TV with an LED backlight from Samsung, with 2160p resolution, and a 120-hertz refresh rate, three HDMI inputs, one component-video input, and two USB ports. This TV is internet enabled.


The Samsung UN40MU7000 is a 40-inch LCD (LED) Ultra HD TV with a native resolution of 3840x2160 (2160p). Rather than the basic 60Hz, it has a faster 120Hz 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 Samsung UN40MU7000 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 three HDMI inputs, and one component-video input. Which also doubles as a composite-video input. It also has two USB ports, which may be used to play media--photos, videos, and music--stored on a flash drive.

The Samsung UN40MU7000 measures 22.6 inches high by 35.6 inches wide by 12 inches deep, including its base. The panel itself is 2.1 inches thick including any protrusions, and the screen has a glossy finish.

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


HDMI inputs HDMI inputs The total number of HDMI inputs on the TV. HDMI (High-Definition Multimedia Interface) is a digital audio/video connection found on TVs, monitors, Blu-ray players, DVD players, receivers, media players, cameras and digital TV tuners. HDMI is the preferred type of A/V connection between TV and device, over an analog component, composite, or RF (such as from a cable box).
Component-video Component-video The total number of component-video inputs on the TV. Component-video is a high quality analog video connection that can accept high definition 1080i/p or 720p, or standard definition 480i/p. Component-video connections require three separate RCA jacks.
Component/Composite-video shared inputs Component/Composite-video shared inputs Component/Composite-video shared inputs (total/aux). One of the three component video input RCA jacks doubles as a composite-video input. This means you can only plug in one type or the other at any given time.
Composite-video Composite-video Number of composite-video inputs on the TV. A composite video signal is analog, and carries standard definition (480i) video only, no audio. Composite is often used to connect older equipment like a VCR, or older camera and camcorder models, to your TV.
USB port USB port USB port lets you connect a flash drive for playback of multimedia content such as videos, photos, and music.
VGA input VGA input VGA (Video Graphics Array) connector is essentially a standard connection for video on computers and monitors, and becoming less common on high-definition TVs, in favor of an HDMI connection. This type of input is no longer available on most TVs.
Ethernet port Ethernet port Ethernet is the common wired network connection for computers and printers. TVs that include an Ethernet port can typically receive video, audio, and digital photos from a home network. Additionally, Internet-enabled TVs can access a variety of Web-based services, ranging from basic news, stocks, and weather information, to streaming movies and TV shows from services such Amazon, Netflix, Vudu, Hulu and YouTube, etc
Digital-audio output Digital-audio output A TV with a built-in digital tuner often comes with either a coaxial or optical digital-audio output to let you route the Dolby Digital or DTS multichannel soundtrack to a receiver for decoding. The receiver thus splits apart the soundtrack for distribution to various speakers in the room. This output must match the input of the receiver.
Headphone jack (3.5mm audio jack) Headphone jack (3.5mm audio jack) When you want to watch TV without disturbing others, a headphone jack (usually on the front or side of the set) lets you plug in headphones via a stereo mini jack. You are more likely to find this feature on smaller screen TVs.
Other connections Other connections Other connections not mentioned above.


Frame rate (Hz) Frame rate Numbers indicate "Enhanced frame rate (if 120Hz or greater), and standard frame rate (for non-120Hz TVs, or with enhanced frame rate turned off). Frame rate indicates how often a TV refreshes its picture in a second. 60 hertz (Hz) has been the normal image frame rate for televisions but LCD TVs have increased this number to reduce motion blur, a problem typically associated with that technology. Increasing the frame rate involves the insertion of additional video frames (interpolated or black frames) so they display double or quadruple the number of frames per second -- 120 or 240. Other companies use 120-hertz refresh rates in combination with a scanning (flashing) backlight to achieve a 240-hertz-like effect. (These sets are denoted in the ratings as "240" models, with quotation marks.) Reducing the time between frames can potentially minimize motion blur. Many companies are giving this technology proprietary names; Sony, for example, calls it Motionflow, and Samsung's is dubbed Automotion.
WiFi WiFi WiFi--802.11b/g/n, the same wireless network connection used by computers and printers--allows your TV to connect to the Internet or to a home network without the use of a wired Ethernet connection. This is convenient when your Internet connection isn't near your entertainment setup, which would otherwise require you to run a long cable from room to room. A growing number of TVs can use WiFi to connect to other DLNA-compliant devices in the home, enabling you to access digital music, videos, and photos stored on a computer or networked storage device and play them on the TV. Some TVs have built-in WiFi capability, while others come with a WiFi dongle (external adapter) that you plug into the TV's USB port. In both cases, we denote WiFi as a standard feature. Still other sets require you to purchase the WiFi dongle separately; in that case we indicate that WiFi is optional.
3D-capable 3D-capable A 3D-capable display can -- when fed a proper 3D signal and used with other required 3D equipment, such as 3D glasses--provide a strong illusion of three-dimensionality. When in the 3D mode, the TV displays double images, which are resolved into a single 3D image when viewed using the 3D glasses, which sync to the TV. A 3D TV operates as a standard HDTV when presented with normal 2D programs, which are viewed without glasses. Due to recent standards, active 3D glasses made for one manufacturer's TV may work with another brand TV. Some 3D TVs may come with several sets of 3D glasses, while others may come with none. To view prerecorded 3D movies, you'll need a 3D-capable Blu-ray player. Some settop boxes from cable and satellite companies are also capable of sending a 3D signal to the TV, though the resolution is less than that provided by a 3D Blu-ray player.
3D type 3D type 3D TVs use either "Passive" or "Active" technology to present 3D. Passive type TVs typically have a brighter picture but reduced image resolution (except on UHD TVs). Active systems typically present 3D at full screen resolution but image brightness is lower than when viewing programs in regular 2D. Active 3D TVs now use very light weight 3D glasses, comparable to those for Passive TVs.
Number of 3D glasses included Number of 3D glasses included The number of special 3D eyeglasses included with the 3D TV. Some 3D TVs omit this item to control costs. Some 3D Blu-ray players may include these glasses. Retailers may offer a "3D TV + Blu-ray" bundle that also includes the glasses. All of the 3DTVs in our Ratings require the viewer to don special eyeglasses. So-called "active" 3D sets, which require "active" battery-powered LCD shutter glasses, may come with one or more pairs, or none. Additional pairs generally cost from $50 to $150 each. Most so-called "passive" 3D TVs come with four pairs of passive polarized glasses, much like the ones used in theaters, which don't require batteries. Additional sets cost from $10 to $30 each. You cannot use passive glasses with 3DTV that requires active glasses, and vice-versa. You also generally cannot mix active 3D glasses from one brand of TV with another's, though TVs made in 2012 and later may share glasses. (Passive 3D glasses can be used interchangeably with any passive 3D TVs.) There are some "universal" active 3D glasses you can buy as an after-market item .
Streaming services Streaming services Streaming video services
Netflix, YouTube, Amazon Prime Video, Hulu, HBO Go and HBO Now
Web browser Web browser Offers full web browsing capability.
DLNA-certified DLNA-certified DLNA-enabled devices can send digitally stored content like music, pictures, and videos over a home network connection--wireless or wired--from a storage device to a player, display, or another storage device. The devices can include a computer, TV, DVR, set-top box, printer, and cell phone. For example, a computer running Windows 7 is already DLNA-enabled and will allow a DLNA-enabled TV or set-top box (with a built-in network connection) to "pull" digital photos and videos from the computer, with no additional software needed. DLNA stands for Digital Living Network Alliance, an industry group that developed the standard and certification process covering how those media devices interact.


Native resolution Native resolution Applies to "fixed-pixel" display types such as LCD (LED), OLED, as well as DLP and LCoS for front projectors. It's expressed in horizontal by vertical pixels (for the picture elements making up a displayed image). Incoming video formats of higher or lower resolution must be down- or up-converted as necessary to match the set's native resolution. Generally, the more pixels a display has, the better it can reproduce fine detail from a high quality source -- but other factors may also affect performance.
Overall height (in.) Overall height The height of the TV in inches, rounded up to the nearest 0.25-inch. Dimensions include the base and detachable speakers, important if you plan to place the TV on a stand or in an entertainment center. See "Panel size without base" if you plan to wall-mount only the display.
Overall width (in.) Overall width The width of the TV in inches, rounded up to the nearest 0.25-inch. Dimensions include the base and detachable speakers, important if you plan to place the TV on a stand or in an entertainment center. See "Panel size without base" if you plan to wall-mount only the display.
Overall depth (in.) Overall depth The depth of the TV in inches, rounded up to the nearest 0.25-inch. Dimensions include the base and detachable speakers, important if you plan to place the TV on a stand or in an entertainment center. See "Panel size without base" if you plan to wall-mount only the display.
Screen shape (aspect ratio) Screen shape (aspect ratio) The screen shape, or aspect ratio, is the proportion of a TV screen's width to its height. Current HD and UHD TVs have a wide, “16:9” aspect ratio, unlike older tube TVs screens with an aspect ratio of "4:3," giving them a squarish shape.
Screen finish Screen finish The reflectivity of the display's surface. A screen with a mirror-like, or glossy finish may introduce distracting reflections from nearby lighting or windows. A matte screen is better for reducing glare in rooms with many lights, but these are not typically found on displays larger than 32".
Digital Tuner (Off-air ATSC and Cable QAM) Digital Tuner (Off-air ATSC and Cable QAM) An ATSC tuner can receive free over-the-air local broadcast digital signals, which may include high-definition widescreen images and multi-channel sound. All HDTVs and Ultra HD TVs have a built-in ATSC tuner that only require a VHF/UHF indoor or a roof antenna to receive the broadcast networks' high-definition (HD), or standard-definition (SD) program offerings. You must be close enough to a station transmitter, with few obstructions blocking the signal, in order for the TV to pick up the channels. Also note that you won't get any of the premium channels typically offered only on cable or satellite.
Panel size without base HxWxD (in.) Panel size without base HxWxD For flat-panel LCD and OLED sets, dimensions are for the display panel only, not including the base and detachable speakers, rounded up to the nearest 0.25-inch; also see "Overall height (in.)", "Overall width (in.)", and "Overall depth (in.)".
20.5 x 35.6 x 2.1
Weight including base (lb.) Weight including base How much the television weighs (in pounds).
Warranty (months): parts/labor/in-home Warranty (months): parts/labor/in-home The length of time the product is covered by its manufacturer for defects or repairs. Warranty coverage is often divided into parts and labor. Twelve months for both is typical. With an in-home warranty, a technician comes to your home to service the set when you have a problem -- of particular importance with heavy or wall-mounted sets.

Price & Shop


Provided by eBay Commerce Network and Amazon, Consumer Reports Price & Shop makes it easy to find the right product from a variety of online retailers. Price & Shop is unbiased: retailers cannot influence placement. Clicking "Shop" will take you to the retailer's website to shop for this product. Please note that Consumer Reports collects fees from both eBay Commerce Network and Amazon for referring users. We use 100% of these fees to support our nonprofit mission.

Consumer Reports is an independent, non-profit organization dedicated to helping consumers. We do not accept advertising.

ebay amazon