The 4k LG C7 OLED TV offers excellent picture quality thanks to its ability to display true blacks. It's especially good for gaming thanks to its very low input lag and motion blur. It gets fairly bright, and it can display a wide range of colors, so it's also a great HDR performer. Unfortunately, it can retain static images for a few minutes, and brightness levels fluctuate depending on the content, so it isn't perfect.
See our recommendations for the best 4k TV.
- Perfect blacks produce an infinite contrast ratio
- Virtually no motion blur, fast moving content is very clear
- Picture quality is retained, even at steep angles
- Temporary retention can happen when static images stay on screen too long
- Brightness levels vary depending on content being played (ABL)
Tested 1080p @ 120 Hz input lag using our new input lag tool
webOS update 3.6 fixed the PC mode HDR issue, so 4:4:4 color can now be properly displayed in HDR content.
Converted to Test Bench 1.1
. Learn more about our new versioned test bench system here
The design of the C7P is great, and stands out in any room. It has a similar style to the LG OLEDs of 2016, but with a different stand and some minor aesthetic improvements. Unlike the 2016 models, there are no curved options available in 2017. The top third of the screen is extremely thin, even compared to the relatively thin LG B6.
The stand is quite different from the 2016 OLED models, with a brushed metallic finish. It supports the TV well and feels sturdy, but is also small enough to fit on most tables.
Footprint of the 55" TV stand: 8.7" x 22.7"
The rear of the TV is similar to the B6. There is a removable cable management hook for guiding cables, but it isn't as good as the cable management on some other TVs such as the X930E. The controls are located on the rear of the TV similar to the E6. If wall-mounted, some of the inputs may be difficult to access.
The borders of the TV are very thin, and look great.
1.97" (5.0 cm)
The top of the TV is exceptionally thin when viewed at an angle, even compared to the 2016 OLEDs such as the B6. The max thickness measurement is taken at the thicker body of the TV, but it is still very thin. The cable management hook can be removed to sit flush against a wall.
The C7 only gets a little warm, and the heat is fairly even across the display because each pixel in an OLED produces its own light.
The build quality is great. The TV feels solid, although the top of the screen does feel a bit thin which can make it a bit more difficult to move.
The LG C7P OLED TV has an excellent picture quality. The infinite contrast ratio and perfect blacks make for an amazing movie experience, especially when the TV is set in a dark room. When set in a bright room, the C7 also has good picture quality since it can get bright enough to fight glare and it does a remarkable job at dealing with reflections. The very wide viewing angle and the good gray uniformity make the C7 an excellent choice for watching sports with a large group of people or if you have a wide seating area. When it comes to HDR, this TV does a superb job making HDR content shine when compared to SDR content. The perfect contrast ratio, good HDR peak brightness and large color gamut coverage make HDR content really pop.
Inf : 1
Contrast with local dimming
The LG C7 has a perfect contrast ratio, and like other LG OLED TVs, is a great performer when set in a dark room.
Since there is no need for local dimming on OLED TVs, this video is for reference only.
SDR Real Scene Peak Brightness
SDR Peak 2% Window
SDR Peak 10% Window
SDR Peak 25% Window
SDR Peak 50% Window
SDR Peak 100% Window
SDR Sustained 2% Window
SDR Sustained 10% Window
SDR Sustained 25% Window
SDR Sustained 50% Window
SDR Sustained 100% Window
Good SDR peak brightness, a little brighter than the LG B6 and C6. The TV remains at a consistent ~380 cd/m2 for all content except extremely large and bright images like our 100% white window, which unfortunately dims quite significantly due to the TV's Automatic Brightness Limiter (ABL). This means that almost all scenes in SDR content will have a good brightness, but extremely bright scenes may dim.
The TV dims over time when showing a static image, but this won't happen during video. A plot of SDR peak brightness over time can be found here.
Update 04/24/2017: ABL is less of an issue if the OLED light setting is set to 35 or less, where the fluctuations between scenes will only drop by 20 cd/m2 or less.
HDR Real Scene Peak Brightness
HDR Peak 2% Window
HDR Peak 10% Window
HDR Peak 25% Window
HDR Peak 50% Window
HDR Peak 100% Window
HDR Sustained 2% Window
HDR Sustained 10% Window
HDR Sustained 25% Window
HDR Sustained 50% Window
HDR Sustained 100% Window
Good HDR peak brightness, a little brighter than the LG B6 and C6. Although the TV gets very dim when showing a pure white window due to its Automatic Brightness Limiter (ABL), it is very bright when showing our real scene test, so most HDR content will be very bright. However the TV is unable to reach 1000 cd/m2 on small highlights like our 2% window, so small highlights in HDR content won't get as bright as intended.
The TV dims over time when showing a static image, but this won't happen during video. A plot of HDR peak brightness over time can be found here using the Cinema picture mode, and here using the Vivid picture mode. The TV is brighter when in Vivid mode, but colors aren't as accurate.
The overall gray uniformity of the C7 is good. There are some faint vertical lines visible when you look very closely and the right side is a bit warmer than the rest of the screen but it does not show when watching normal content. There is very little dirty screen effect which is good, especially when watching sport.
The 5% gray uniformity is also good, and when looking at our test picture, nothing really stands out. When viewed in a dark room, some vertical lines are visible, and it seems a bit worse than on the 2016 LG B6. Note that those vertical lines are mostly visible when a uniform dark image is displayed and it very hard to notice with regular content like movies or TV shows.
Native Std. Dev.
The C7 has flawless black uniformity when displaying a black image. This is due to the fact that the pixels are totally turned off and emit no light when displaying a true black. No clouding whatsoever occurs and this provides one of the best experiences that a TV can provide, especially when watching movies in a dark room.
The LG C7P can display our test image smoothly without any banding typically seen on 8-bit panels. Light shades of color are displayed without problems, however small imperfections can be noticed in the darker shades of color and the dark part of the greyscale. Overall though the gradient performance is good, and these small flaws should not be a problem when watching standard content.
Update 2017-11-07: Note that when the TV is set to 'PC' mode, via the input menu, the banding is much more visible, and this for all picture modes.
Calibration on the LG C7 is done pretty easily and the white balance is particularly responsive and precise. The color space management is a bit less responsive than the white balance, but that is almost always the case for LG TVs. Even if it is a bit less responsive, the total color dE was brought down significantly to a reasonable 1.22. In the end, the gamma was spot on our desired value of 2.2.
You can see our recommended settings here.
Upscaling of low quality content is good. Some halo artifacts can be seen along lines but details are preserved.
720p content such as cable is upscaled well. Some moire can be seen in the image from the camera focus.
1080p content such as Blu-rays are upscaled well. Details look good and the image is sharp.
Native 4k content looks good on the C7. No issues can be seen.
Outstanding color gamut, similar to the B6 and C6 from last year. The TV can accurately show nearly any color in the P3 color space, even deep greens that many other TVs struggle with. The Rec 2020 color space is also well covered. Colors in HDR content will be well reproduced.
Normalized DCI P3 Coverage ITP
10,000 cd/m² DCI P3 Coverage ITP
Normalized Rec 2020 Coverage ITP
10,000 cd/m² Rec 2020 Coverage ITP
Decent color volume. This OLED TV is able to show its wide color gamut for dark and moderately bright colors, but it is unable to show extremely bright colors at their proper brightness. This should only be a problem for extremely bright highlights in HDR content.
IR after 0 min recovery
IR after 2 min recovery
IR after 4 min recovery
IR after 6 min recovery
IR after 8 min recovery
IR after 10 min recovery
The C7P OLED TV is prone to image retention just like previous models. Fortunately, the image retention is less strong than what we have measured on 2016 LG OLED TVs.
If you find out that your TV has some image retention after playing video games over a long time for example, there is a function in the 'Picture settings' page, under 'OLED Panel Settings' named 'Pixel Refresher' that will 'recalibrate' the screen to get rid of any imprinted images that may still visible. This procedure lasts around one hour and the TV needs to be shut off for it to work. This can usually take care of any image retention.
Another feature is also available on the same settings page named 'Screen Shift' that will 'move' the screen slightly (you can't really notice it) to make the image retention less problematic. For our test, this feature was turned on but there is still some image retention.
The C7 is excellent at handling reflections. The purple tint present on most high-end TVs is still visible, but much less so than the 2016 OLEDs. The reflections are fine even for a bright room.
Like most 2017 models, the C7 doesn't support 3D.
Due to the RGBW pixel structure, not all of the sub-pixels on at the same time. When displaying a purple image more of the sub-pixels can be seen.
The motion handling of the C7P is excellent. The response time is near perfect resulting almost no visible motion blur. The TV doesn't flicker by default, but unfortunately, it can't enable any flicker to reduce blur further. It can play movies from most sources without any judder which is good, and is able to interpolate content up to the native 120Hz refresh rate.
80% Response Time
100% Response Time
Like other OLED TVs, the C7 has an almost perfect response time. This results in almost no visible blur following moving objects. Unfortunately this means that low frame rate content may appear to stutter as there is no motion blur to smooth between the frames.
PWM Dimming Frequency
Black Frame Insertion (BFI)
The C7 doesn't flicker and instead shows each image for each frame. This makes motion appear slightly more smooth, but does result in some persistence blur (visible in the motion blur image).
Judder-free 24p via 60p
Judder-free 24p via 60i
The LG C7P is judder free when movies are played via 24p sources like DVDs, Blu-ray players, and native streaming apps. To be able to display 24p content without judder, the 'TruMotion' option must be set to 'User' and both the 'De-Judder' and 'De-Blur' sliders set to zero (when set to 0, no soap opera effect will be added).
When it come to movies playing via a 60p/60i source like cable boxes, the C7 was able to remove judder completely just by turning on the 'Real cinema' option.
Motion Interpolation (30 fps)
Motion Interpolation (60 fps)
The C7P has a 120 Hz panel and is able to interpolate lower frame rate content to 120 fps, which significantly improves motion. Unfortunately the interpolation is not as good as on some other TVs: the motion stuttered at times during normal content, especially cartoons, and artifacts would appear in rare cases.
To enable motion interpolation (also called the soap opera effect) set 'TruMotion' to 'User'. For a 30fps source increase 'De-Judder' and for a 60fps source increase 'De-Blur'.
Update 11/13/2017: The motion interpolation performance has been clarified in the text.
The LG C7 has very low input lag in game mode which makes the TV very responsive, and it supports all the common input resolutions so most any content will be properly displayed.
4k @ 60Hz + HDR
1080p @ 60Hz + HDR
4k @ 60Hz Outside Game Mode
1080p @ 60Hz Outside Game Mode
4k @ 60Hz @ 4:4:4
1080p @ 60Hz @ 4:4:4
4k @ 60Hz @ 4:4:4 + 8 bit HDR
1080p @ 60Hz @ 4:4:4 + HDR
4k With Interpolation
1080p With Interpolation
Very low input lag. When in game mode the input lag is a solid 21 ms regardless of input resolution. This should be good enough for all but the most competitive gamers. This input lag is lower than any of LG's 2016 OLEDs like the B6, and is competitive with some of the best TVs from last year like the KS8000.
Update 04/24/2017: Turning on PC mode on any of the picture modes will result in input lag of about 21ms. 1080p outside game mode has been corrected after being re-tested.
Update 08/14/2017: webOS update 3.6 fixed the PC mode HDR issue, so 4:4:4 color can now be properly displayed in HDR content. The 4:4:4 + HDR input lag has been measured as ~21 for both 4k and 1080p, which is no different from the other low input lag measurements.
Update 09/20/2017: Tested 1080p @ 120 Hz input lag using our new input lag tool. It's nearly identical to the 1080p @ 60 Hz input lag, which is very unusual. The first on screen reaction input lag of 1080p @ 120 Hz on this TV is 4 ms higher than for 1080p @ 60 Hz, which counteracts the benefits of the 8 ms faster scannout of 120 Hz, producing an average input lag that is equal to the 60 Hz input lag. This may be by design, to keep the audio sync consistent between both refresh rates. Either way, ~20 ms input lag is very good for a TV, and should please most gamers.
1080p @ 60Hz @ 4:4:4
All the common input resolutions are supported. For the TV to properly display 4:4:4 color, the HDMI input in use must have its icon changed to 'PC'. To play 4k @ 60 Hz @ 4:2:2 or 4:4:4 color, 'HDMI ULTRA HD Deep Color' in the general settings must be enabled for the input being used.
Update 05/31/2017: 1080p @ 120 Hz + HDR does not work properly. Its brightness appears to be following the SDR gamma curve rather than the HDR PQ curve, making everything look off and too bright.
Update 08/14/2017: webOS update 3.6 fixed the PC mode HDR issue, so 4:4:4 color can now be properly displayed in HDR content.
Unlike the 2016 OLEDs, the C7P doesn't have a component input.
Digital Optical Audio Out
Analog Audio Out 3.5mm
Unlike the 2016 OLEDs, the C7 doesn't have a component input.
Since it doesn't have an analog audio out, to connect a pair of headphones, you will have to either use bluetooth or headphones with a digital optical audio input like the Turtle Beach Elite 800.
5.1 Passthrough ARC Dolby Digital
5.1 Passthrough ARC DTS
5.1 Passthrough Optical Dolby Digital
5.1 Passthrough Optical DTS
HDMI 2.0 Full Bandwith
Yes (HDMI 1,2,3,4)
Yes (HDMI 1,2,3,4)
Variable Analog Audio Out
The LG C7 produces decent sound. It isn't very different from LG's entry-level OLED offerings from last year, but it should be usable.
Std. Dev. @ Max
Dynamic Range Compression
Passable frequency response performance. The C7 follows somewhat of a flat shape which is desired. A lot of compression occurs at max volume, but most people will not bring it up that high.
Weighted THD @ 80
Weighted THD @ Max
Decent distortion performance. Remains relatively low at standard levels and the amount scales linearly with raising the volume.
The C7 runs LG's WebOS smart platform. It is easy to use and feature filled, and makes very effective use of the TV's smart remote. The remote has a few buttons that open quick menus, like the settings and inputs buttons, so the user doesn't have to go into the main settings menu. When the remote is pointed at the screen a cursor follows its movement, so menu items can be selected directly without using the arrow keys to navigate to them. The remote has a microphone for voice commands which works well.
Time Taken to Select YouTube
Time Taken to Change Backlight
The webOS interface is split into three sections: settings, inputs and apps. Each has its own button on the remote, a quick menu containing common items, and a full menu with advanced options. This makes the interface easy to use and fast to navigate, but the split nature may confuse some first time users.
Suggested Content in Home
Opt-out of Suggested Content
The TV did not display ads during our testing, but there was a personalized advertising section of the user agreement so the TV may have ads in some regions.
Update 05/25/2017: Ads were found in voice search results, like the UJ7700's search ads shown here. It can be assumed that there are also ads in the LG Content Store like on other 2017 webOS TVs.
USB Drive HDR Playback
HDR in Amazon Video
The C7 comes loaded with all the popular apps like Netflix, Amazon Video and YouTube. Many more apps can be downloaded from the LG Content Store.
Content Search Only
Other Smart Features
The C7's remote is great, and it's mostly unchanged from last year's smart remote. It has a lot of advanced features that make the TV easier to use. When the remote is pointed at the TV a cursor follows its movement, which allows the user to point at and select menu options directly. The cursor is very sensitive to movement and takes some getting used to, but it really helps when navigating the TV. The remote also has a microphone for voice commands, which works well.
Launches Apps and Inputs
Inputs Text in YouTube
Inputs Text in Netflix
Streams Device Files
Controls TV Settings
The webOS remote app has some useful features like streaming files off the device running the app, but is missing some others like text entry.
There is a simple joystick for navigating the TV without the remote. It's located on the back of the TV like the E6 and unlike the B6 and C6.
- Composite adapter
Unlike the 2016 models, the C7 doesn't include a component adapter as it doesn't have a component input.
Power Consumption (Max)
Differences between Sizes and Variants
We tested the 55" (OLED55C7P). For the most part, we expect our review to be valid for the 65" (OLED65C7P).
The B7 (OLED55B7P, OLED65B7P) is a warehouse exclusive model in the USA and is also available in Canada but we expect it to have the same performance, with a slightly different design.
If someone comes across a different type of panel or if their LG OLED 55C7P doesn't correspond to our review, let us know and we will update the review. Note that some tests such as the gray uniformity may vary between individual units.
Compared to other TVs
Top left: LG B6
). Bottom left: Sony X930E
). Middle: LG C7 (OLED55C7P). Top right: Samsung Q7F
). Bottom right: Vizio P Series 2016
). Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.
The LG OLED C7 is one of the best TVs available today and its picture quality cannot be matched, but it's a very minor improvement over last year's models.
The LG B6 is 2016's entry-level OLED TV. It's been replaced by the C7, but the difference between them is very minor. The picture quality is almost identical, and the input lag is the only real advancement, although the B6 is still pretty good in that regard. Considering the big price difference, almost nobody should be buying the C7 over the B6 from last year.
The Sony X930E is one of Sony's high-end LCD TVs in 2017. It's a great TV, but the C7 has some advantages such as the perfect blacks and wide viewing angle. The X930E does get significantly brighter, but most people will find the C7 to be a more suitable choice. It is a fair bit cheaper than the C7 though which is a big advantage.
55" 65" 75"
The Samsung Q7F is the entry level model from their QLED line of LCD TVs. It's a bit cheaper than the LG, but it's mostly a downgrade. It can display a wider range of colors, which is great for HDR, but it isn't worth picking over the C7.
Vizio P Series 2016
50" 55" 65" 75"
The Vizio P Series 2016 is Vizio's top of the line TV. It features the best local dimming we've tested and has great picture quality in a dark room. It's far less versatile than the OLED, but since it's available for a fraction of the price, it can be a good buy for those on a tighter budget.
Great TV overall. The LG C7 has great picture quality with almost every usage. Its blacks and motion blur are as good as it gets. Movie performance is exceptional, and gaming is as good as it gets.
Outstanding Movie performance. The LG C7 has an infinite contrast ratio thanks to its pure and uniform blacks. It is a thing to behold in a pitch black room.
The C7 is great for TV shows. It gets sufficiently bright and deals with reflections well. It can also be enjoyed from every side, so wider living rooms aren't a problem. News or weather broadcast might see icons retained for a few minutes, but nothing major.
Sports look very good on the LG C7, mostly thanks to its great motion. Fast moving objects and players show no trail, so they appear very fluid. The uniformity is also quite good, but it can show some minor banding in specific areas.
Superb gaming TV. It handles very fast motion exceptionally well, and input lag is amongst the lowest available making games feel fluid and responsive.
Superb HDR movies performance. The C7 has excellent picture quality and can cover a fairly large color volume. It's also capable of lighting up small highlights quite bright, which is important for HDR.
Impressive HDR gaming capability. The standard gaming experience translates well to HDR, and using that feature only brings benefits.
Great TV to use as a PC monitor. It has low input lag and motion blur, and an excellent viewing angle. It also supports a 120hz input, which is an excellent feature for PC gaming.