Compare: LG OLED C4 vs TCL C7L

LG C4 is a television that, in its price range, will likely have no competition for many users. Thanks to its extensive capabilities, it will appeal to those looking for a television not only for films and series but also for gaming. The advanced WebOS system and a remote control that functions like a mouse will certainly be a significant convenience in everyday use, making it likely that we will stick with this brand for much longer. The OLED panel implemented by the manufacturer, resulting from over 10 years of history, shows that this brand has not yet said its last word. The brightness results in HDR materials are very solid and can deliver an incredibly dynamic and deep image. It is worth mentioning the excellently implemented dynamic tone mapping feature, which makes HDR10 content look almost as good as Dolby Vision. And when it comes to fidelity to artistic vision, one cannot overlook how calibratable LG televisions are, allowing considerable freedom for calibrators and classic calibration for home users, as well as 3D LUT for professionals. However, if we are looking for a gaming television, then the LG C4, like most of the manufacturer’s OLED televisions, will be an ideal choice. With the implementation of HDMI 2.1 ports and the full utilisation of their potential, we can enjoy incredibly smooth gameplay with all the benefits, such as VRR, ALLM, FreeSync, and G-Sync. Of course, the panel, with a maximum refresh rate of 144 Hz and an advanced motion smoother, will also provide a very smooth and sharp image during the broadcast of various sporting events. It is hard not to give a high rating to LG OLED C4, as a television in a similar price range with such advanced features is difficult to find among the competition.

The TCL C7L is an incredibly successful Mini-LED television and a fully deserved successor to the hit model C7K. The list of advantages of this device is truly extensive. At the top is the extremely high brightness of the panel. Thanks to this, the television handles brightly lit living rooms without any problems, offering a fantastic and dynamic image in HDR format. Huge applause is also due for the use of the new Super QLED coating – after professional calibration, the colours can be not only natural but also incredibly saturated. The best part is that the screen achieves this regardless of the scene displayed, which is often not the case with all TVs featuring RGB backlighting. The C7L is also a brilliant piece of equipment for gamers; it could even be said that it is a true "multimedia powerhouse." We get full support for consoles and PCs, refresh rates of up to 288 Hz, G-Sync, and low input lag, which doesn’t increase even when activating the demanding Dolby Vision Gaming mode. Everything is tied together by a well-optimised Google TV system, which in this generation of TCL devices operates noticeably smoother and more efficiently (at least that's the impression we got during our testing). Of course, the C7L is not a perfect device, and the manufacturer had to make certain compromises in this model. The biggest drawback of the C7L is the use of a less powerful image processor. Unfortunately, this translates to rather average digital processing and other design limitations, such as only two HDMI 2.1 ports. A more powerful chip has been reserved this year for the higher series, such as the C8L. From a business point of view, this is entirely understandable. Why? Because if TCL had included a better processor here, most people would probably not see any point in paying extra for a higher model. So even if certain compromises exist, the C7L series is once again shaping up to be one of the most cost-effective Mini-LED televisions this year. If you are looking for a versatile, extremely bright screen for movies, series, television, or gaming – literally for everything – and at the same time do not want to overpay for top series, then yes... the C7L is a brilliant choice that we can definitely recommend to you.

LG OLED C4, as the name suggests, uses an organic panel of its own production. This series definitely ranks among the most recognisable on the market. Over 10 years of experience in the construction of self-emitting panels has allowed for the refinement of each subsequent design, with the models from the 2024 vintage being the epitome of this. Of course, the use of this type of screen enables the achievement of impeccable contrast and blacks, allowing for immersion in the world created by the director. This is made possible by the OLED panel, characterised by the absence of conventional backlighting, with current passing through organic pixels instead. This allows for super-accurate control of the image, thereby eliminating issues such as the dimming of delicate fine details or the halo/blooming effect. Looking at both of our test scenes, we can observe two things: perfect separation of lights and a whole plethora of details in the film "Sicario 2".

TCL C7L is a Mini LED television, which in the 65-inch variant we tested, is equipped with over 1000 local dimming zones. This, combined with the proprietary VA panel (referred to by TCL CSOT as HVA 2.0), yields truly decent results in terms of blacks and contrast. In most of the scenes we measured, the black levels and contrast looked really good, and in the easiest shots, the black was deep enough to almost resemble that seen on OLED screens. Of course, we are talking about the least demanding shots with a lot of black on the screen. However, when a greater number of bright elements appear on the screen and black no longer dominates as strongly, it is apparent that the TCL C7L – like most Mini LED televisions – has its issues with managing local dimming zones.

This is particularly evident in the black bars in films recorded in the 2.35:1 widescreen format. At that point, a distinct halo effect, or bright light glow, can appear on the black bars or around small, bright objects. The contrast then drastically dropped – from laboratory values of around 200,000:1 to about 10,000:1, which is quite noticeable in a completely dark room. It is worth remembering that this should not be treated as a flaw of the television, but rather as a characteristic of mini-LED technology. Of course, this effect becomes significantly less bothersome when we turn on at least some soft, diffused light in the room... which I definitely recommend doing during screenings on any LCD television.

The results of HDR materials are definitely among the better ones. Practically every film significantly exceeds the 700 nits barrier, allowing for a very realistic image. Of course, none of them surpasses the magical thousand, yet the combination of such results and unlimited contrast and black effectively boosts the outcome optically. The last of the scenes, featuring a full-screen burst of sunlight, is actually less bright than the others, although it still represents a commendable level. It is also worth mentioning the excellent coverage of the DCI-P3 colour palette, which will allow for achieving extremely vivid colours.

TCL C7L is undoubtedly an extremely bright television. In synthetic tests on static images, it can achieve peak brightness of around 2800 nits. This is an exceptionally phenomenal result, considering the price range it occupies. Unfortunately, tests of real film scenes are not quite as spectacular as measurements of white squares. Brightness in actual HDR shots drops to around 1200 nits in the C7L model. This is still a very good result, as this is the value to which the vast majority of contemporary films are mastered. However, when small, point-like elements appear on the screen, the brightness of these details drastically decreases – even down to around 400 nits – which diminishes the HDR effect somewhat. The television does this deliberately to maintain a better level of black and to avoid a giant light bloom. This is somewhat explainable, but it also shows that Mini LED technology is not entirely uncompromising in this regard. As for the HDR effect itself – alongside brightness, colours are of course key here. And those, thanks to the use of new "super" quantum dots, are simply outstanding and among the best on the market. The television can achieve about 90% coverage of the ultra-wide BT.2020 colour gamut and 99% of the DCI-P3 gamut, easily matching the best RGB MINI-LED screens. Best of all, the C7L can maintain such a high saturation of colours regardless of the scene being displayed, which often poses a challenge for competing RGB Mini-LED televisions.

The best factory mode implemented in the tested television was "Filmmaker". It was this mode that we used during all tests. This mode proved to be quite good in terms of colour reproduction; however, other shortcomings effectively detracted from the enjoyment of viewing. Starting with the most basic aspect, the white balance, it was easy to notice that it was marked by a dominance of red, which overall changed the characteristics of the image. We could thus see a strong yellowing of the whites and a shift of all colours towards warmer shades. The gamma, which is a curve just as important, if not more so, was quite significantly lowered, resulting in a considerable drop in contrast, except at the beginning of the graph, where the television insidiously lost details. That’s all regarding SDR materials. Taking a closer look at films with a wide dynamic range, we can observe exactly the same phenomenon of yellowing of the white balance as in films with a standard colour palette. The EOTF curve, which replaces our gamma curve, is practically perfect and cannot be faulted.

When it comes to colours straight out of the box, a new feature in TCL televisions – including the C7L model – is the presence of a new picture mode called Filmmaker Mode. This is significant news, as such a mode was not available from this manufacturer before. By design, as indicated by the name itself, the image in this setting is meant to be presented with the full intention of the film's creator. After our tests, we can confirm that it is undoubtedly the best built-in mode on this television if you care about faithful colour reproduction straight out of the box. However, we certainly wouldn't say it is perfect. Like most devices on the market, this C7L also had its factory flaws. The white balance in Filmmaker Mode tended to shift towards a slightly greenish-yellow hue, primarily caused by an excess of green and a clear deficiency of blue. Of course, for the average viewer, this won't be a drastic flaw, but if you care about perfect whites, natural skin tones, and unlocking the full potential of those new "super" quantum dots, then the television is crying out for professional calibration.

As we mentioned earlier, LG televisions are equipped with advanced tools for carrying out the calibration process. We therefore used them to model the image in the way that the director intended. And without modesty, we must admit that we achieved this phenomenally. Both SDR and HDR materials present a level that clearly indicates that this is how a film should look. It is worth looking at the colour errors on the "ColorChecker" palette here, where practically none of them exceeds "1", apart from two samples.

After conducting a professional calibration, we were able to significantly improve the situation in the factory mode Filmmaker Mode. Following our adjustments, errors in the ColorChecker test and across the entire wide colour gamut fell below the threshold of human perception – that is, below a value of 3, which is truly an excellent result. The TCL C7L definitely benefits from such an operation in terms of colour fidelity, and this is difficult to dispute. However, the management of brightness in HDR content post-calibration does not look as good. As I described earlier – even though we set up this model appropriately, when we turn on real film scenes on the television, it manages its brightness in quite a peculiar way. It often highlights certain elements on the screen contrary to the creator's intention, which can be clearly seen in the EOTF graphs measured in specific films. Despite this defect – or rather the specific trait of this television – one cannot deny that after calibration, the C7L was able to reproduce colours completely accurately.

The fluidity of tonal transitions in LG televisions has always been a fairly sensitive issue, as the manufacturer, despite impeccable performance in other areas, has almost always struggled to get this right. The results of the assessment of the fluidity of tonal transitions in the tested television were quite good, and the problems are mainly visible in darker scenes, such as the last two scenes. Interestingly, this is a result that is definitely better than the highest model from the manufacturer, namely the LG G4.

Another element worth discussing is the fluidity of tonal transitions. Here, one must honestly admit that the TCL C7L simply looks good. In most scenes – especially in the brighter shots – absolutely no problems with gradients can be seen. In native 4K HDR content, the picture is clear, and the transitions between shades are very smooth. It looks equally good in Dolby Vision mode, where during testing, we did not notice any digital defects or unsightly colour banding. One could nitpick about very dark shots, where a heavily compressed signal is displayed on the screen. In such conditions, the C7L can occasionally reveal minor imperfections; however, in this model, it is not something that stands out significantly, especially during everyday film screenings.

Once again, we will take a look at the function responsible for smooth gradation, but we will also address the one that aims to improve the quality of lower-quality materials. The default smoothing of tonal transitions, as we have seen, was not the worst, but it can still be improved. The function has a slider, which allows us to adjust its strength. We recommend using the first one, as it yields very good results and does not blur important details.

Image scaling in LG C4 is quite good; however, it cannot be said to be without flaws. The image is slightly sharper by default, although not in a very noticeable way. Admittedly, there are jagged edges on the trees, but this is not a major issue compared to other manufacturers.

This point could be called, in a sense, the Achilles' heel of the C7L model. Unfortunately, this television uses an older chipset from MediaTek – the Pentonic 700 – which has never been known for outstanding digital picture processing. This is clearly visible in the performance of the smoothing function, which is responsible for reducing jagged edges and removing digital noise. It simply works very poorly – when set to a low level, its effectiveness is practically nonexistent. A small credit should perhaps be given here for the fact that the algorithm does not additionally ruin the picture or blur details forcibly. The upscaling, which is the scaling of the image from lower resolutions to 4K, fares a bit better. It is simply adequate and does not stand out in any particular way against the competition. However, it cannot be denied that the C7L would greatly benefit in this aspect if the manufacturer decided to use the newer Pentonic 800 processor, which is now found in an increasing number of competing models.

The maximum refresh rate that we can set on the LG G4 is 144 Hz. Naturally, this is only possible when connecting the television to a very powerful PC. In other cases, we will be operating at a maximum refresh rate of 120 Hz, which is recommended if we primarily want to watch sport or content with a lot of motion dynamics. For those requiring high fluidity of the image, the manufacturer has implemented a multi-step motion smoother called "TrueMotion". It has been divided into two separate sliders that adjust the sharpness of moving images (De-Blur) and judder (De-Judder). Both sliders can be set within a range from 0 to 10, with each degree affecting the degree of smoothing, allowing everyone to find their golden mean.

The LG OLED C4 panel features an average response time of less than 1 ms (which directly results from our measurements), allowing for an incredibly clear image that is unattainable for LCD televisions, whose response times can be as high as several milliseconds. This is clearly visible in the pictures from the "UFO Test," showing no trailing blur behind the object.

TCL C7L features a native 4K panel with a refresh rate of 144 Hz, which at lower resolutions – when using a PC – can even ramp up to 288 Hz. These are, of course, very high values and commendable on paper, but in everyday life, it is worth remembering that almost all dynamic content you display on this television will still rotate around a maximum of 120 Hz. To tame this dynamism, the television's menu includes a motion smoothing system called "Motion Clarity." It offers several predefined modes, including a user mode, which we definitely recommend setting manually using our tried-and-tested guides on our YouTube channel. There, we have two key sliders at our disposal. The first one, "Motion Blur Reduction," is responsible for reducing blurring and improving sharpness in dynamic 60-frame materials, such as sports broadcasts. Meanwhile, the second slider, "Flicker Reduction," allows for the addition of artificial frames in films and series recorded at cinematic 24 or 30 frames per second. This certainly eliminates the irritating stutter in images during camera movement shots.

We can already say that LG C4, like practically every OLED television from the manufacturer, is exceptionally good in terms of compatibility with consoles and PCs. Thanks to the implementation of four full bandwidth HDMI 2.1 ports at 48 Gbps, the manufacturer has included all features that enhance the gaming experience, among which we find simultaneous support for FreeSync and G-Sync technology. With such a tandem, gamers with a graphics card from AMD or Nvidia can confidently opt for C4. However, what should delight the players requiring the highest possible quality the most is the simultaneous implementation of HDR Dolby Vision and HGIG mode. The first is particularly important as it works with extremely low input lag in all settings.

A standard in the Korean manufacturer's televisions is also the implementation of GameBar, allowing for quick adjustments of settings "on the fly" without the need to exit the game. It also enables image adjustments for visually impaired individuals, which is a very nice touch. Another important piece of information is that when VRR technology is enabled, we will not experience a drop in contrast. This is, of course, due to the panel's design and the absence of conventional backlighting. However, it is normal for shades of grey to flicker slightly, although this is a characteristic feature of this function regardless of the manufacturer and television.

In summary: LG C4, just like all of the manufacturer's OLEDs equipped with high refresh rate panels and HDMI 2.1 ports, creates a harmonious whole with consoles. In practice, it is a complete television, and if we expect the highest possible performance in gaming, C4 will be an ideal choice.

When it comes to gaming, the TCL C7L is simply an outstanding television for gamers. With the presence of two full-bandwidth HDMI 2.1 ports at 48 Gbps, it provides access to all the key features that console and high-end PC owners require. It has a well-functioning ALLM mode with very low input lag and VRR frame synchronization that operates in an impressive range from 48 up to 288 Hz. Importantly, unlike some competitors, TCL has ensured a proper implementation of the console HDR10 HGIG profile and support for Dolby Vision in games. This is complemented by a very well-designed player panel, known as the Game Bar, which even allows you to customise its appearance and change the theme to perfectly match the style of your console.

The only thing that can – and indeed should – be critiqued here is the fact that the television offers only two full HDMI 2.1 ports, while the other two are older HDMI 2.0. This creates quite a significant logistical problem. Why? Because one of those fast ports also supports the eARC audio return channel. In practice, this means that if you connect a soundbar or home cinema system to the television, you will only have one free HDMI 2.1 port left. If you have two consoles or a console and a powerful computer at home, unfortunately, you'll have to give something up or frequently juggle cables at the back of the unit while maintaining convenient control over your audio system.

The input lag of the LG C4 is at an incredibly low level in every scenario. Even the most dedicated gamers will surely appreciate the very low input lag at demanding 4K 120 Hz settings with HDR, which is just 5 ms. It is also worth noting that the lag at the same settings but with Dolby Vision HDR enabled remains unchanged, which is not so obvious with the competition. Therefore, it deserves the highest rating and recommendation.

It is worth taking a look at the dry numbers here, as in terms of input lag, the TCL C7L is absolute market leader. Our measurements showed that the input lag is extremely low, and for a 60 Hz signal, it is just around 10 ms. When we step up a level and launch a game at 120 Hz, the lag drops to an imperceptible 6 to 7 ms. However, even more importantly, these values are maintained by the television even after activating the Dolby Vision format in games.

LG C4 in combination with a PC performs excellently, thanks to a very low latency of just 13.5 ms, which is practically an instantaneous response between the mouse, eye and screen. A particularly important issue when working on the screen is the readability of text, which in the case of the tested television is very good. However, it is worth noting that to achieve sharp fonts, you need to enable the passthrough option in the settings.

The RWBG pixel arrangement has no significant impact on the display of fonts or letters, which is a considerable advantage over Samsung's QD-OLED panels. Users of both computers equipped with the Windows operating system and macOS will certainly be satisfied with the experience on the screen of the tested television.

When it comes to gaming on PC, as I mentioned earlier, it is truly seamless. The television effortlessly supports high refresh rates: full 4K at 144 Hz, and in Full HD resolution, it can even ramp up to 288 Hz. Additionally, both G-Sync and FreeSync synchronization systems work here without any issues. For PC gamers, the C7L can thus serve as an excellent, massive monitor.

On the other hand, typical office work with text is somewhat less impressive, largely due to the rather oddly behaving panel in these conditions. When the highest refresh modes, 144 Hz and 288 Hz, are enabled, the readability and sharpness of dark text on a light background are fairly average – the fonts become slightly blurred and jagged. Fortunately, this can be easily fixed by changing the screen refresh rate in the graphics card settings to a stable 120 Hz. Then the text becomes perfectly sharp again, which is definitely worth remembering if you plan to use the C7L as a work screen.

The undeniable advantage of OLED panels is their efficiency in the context of group viewing, that is, from various angles. LG C4 maintains very good contrast, colour saturation, and fidelity. Although this is not the result of organic televisions supported by MLA technology, it cannot be said that anyone who purchased the device was dissatisfied with the results obtained. However, it should be noted that at sharp angles, a slight greenish tint can be observed. This is a characteristic feature of WRGB panels from LG, without the aforementioned microlens technology, and unfortunately, there is nothing that can be done about it.

Unfortunately, the powerful native contrast of the HVA 2.0 panel comes at a price. It concerns the viewing angles, which in the C7L model are simply poor. This is obviously due to the use of the aforementioned VA-type panel. It is a completely natural characteristic of this technology and something to consider when making a purchase. If you sit directly in front of the screen, the image will impress you with its depth, but it only takes a slight shift of several degrees sideways on the sofa for the colours to start fading immediately. By choosing this model, you are opting for a classic market compromise: you get brilliant black and fantastic contrast, but you lose out on viewing angles.

The maximum brightness of the television in SDR materials is 367 nits. For an OLED television, this is a very good result that allows for quite comfortable viewing during the day. It is worth noting two things. Thanks to the glossy coating of the screen, reflections are held well in place and do not spill over onto the rest of the display. The second issue is the brightness of the screen at 100% white fill, which hovers around 220 nits, a remarkable result, as until recently OLED televisions in this range could only "boast" of brightness that was half as much. This means that conditions for watching, for example, winter sports will be very good.

It's also worth mentioning how the TCL C7L performs during everyday viewing in a sunlit living room. As we've established, it is an extremely bright television, and it is precisely due to such a powerful supply of luminance (up to 2400 nits in SDR!) that it excels in very bright rooms – the picture easily gets through the incoming light. The only thing to watch out for is direct reflections on the screen. The coating used this year on the panel is definitely glossier than the one we saw in last year's C7K model. The screen significantly worse at suppressing point light reflections, which in unfavourable conditions – for example, when the window is positioned directly opposite the television – can be quite annoying for some users. Nevertheless, in terms of sheer brightness, the C7L is simply a demon for bright living rooms.

LG uses the well-known proprietary WebOS system that has been around for many years. The system offers practically all the most important applications, and the few that are missing can be counted on one hand, such as CDA or KODI. It is also worth mentioning that the modern web browser and the remote control with a built-in mouse allow for convenient use of streaming services in this way, if there is no built-in application.

WebOS also features a highly valued ability to perform operations with a cursor that appears when the remote control is in motion. The convenience of such a function is invaluable when typing in queries or passwords for portals. WebOS, like most systems, also supports features such as screen mirroring, AirPlay, voice search in Polish, and the ability to connect headphones via Bluetooth. On more practical matters, WebOS allows simultaneous use of headphones and the TV speaker, which will certainly be a big help for people with hearing impairments. Among the more interesting features, particularly appreciated by sports fans, is the option to turn on an alert notifying about an upcoming match, ensuring that we never miss a broadcast. The home panel is also praiseworthy, allowing for the control of all smart devices connected to the home network. For example, the cycle of completed laundry will be signalled by a notification in the upper right corner.

In summary, the WebOS system, although less known and having certain limitations compared to Android TV, offers stable and fast performance and supports most features that users may need. It is a solid solution for those looking for a simple and effective operating system in their television.

Google TV and Smart TV

The multimedia heart of the TCL C7L is of course the Google TV operating system, which provides access to a gigantic library of applications and all the most popular streaming platforms on the market. The Smart TV in this model works seamlessly, offering full support for useful network features such as Apple AirPlay or Chromecast. However, a huge and very pleasant surprise is the very performance of the software. We noticed that Google's system on the new C7L operates significantly more efficiently, smoothly, and quickly than on last year's TCL models. Much of this is due to better optimisation for the launch. Unnecessary pauses and minor interface stutters, known from older models, seem to have become a thing of the past.

Television Features

In terms of traditional aerial or cable television, the TCL C7L does not offer many additional advanced features. It is simply a straightforward receiver. The manufacturer did not strive for any revolutionary solutions here, so aside from the traditional programme guide, you won't find anything particularly special. A large nod towards traditional viewers is the classic remote control, which, contrary to the prevailing trend for minimalism, still features a full numeric keypad, making it much easier to switch channels quickly.

The default file player in LG C4 definitely handles all image resolutions well. We can successfully play videos recorded in virtually all the most popular formats, including Dolby Vision. The only codec that the C4 does not support is H.266 VVC, although this is currently rather unused. However, it is a pity that subtitles in .txt format are not supported. Attention should be paid to the supported image formats, of which there are only three: JPEG, PNG, and, importantly for Apple phone users - HEIC. However, the tested television cannot be faulted for lack of diversity in audio files, the playback of which will not be met with a compatibility warning.

At the very end of the multimedia section, it is worth mentioning the playback of files from external USB drives. During our tests, we did not notice any unpleasant surprises here – the factory player handles all popular video and audio formats exactly as it should. Interestingly, the TCL C7L also played photos saved in Apple's native format, namely HEIC, without any problems. This is an extremely rare feature in the factory applications of TV manufacturers. And although the Google TV system obviously gives you unlimited possibilities to install external media playback programs, in the case of the C7L, the built-in tool is refined enough that installing additional software will probably not be necessary for anyone.

The implemented audio system in LG C4 has been very well tuned, allowing us to experience strong bass, as well as balanced mid and high tones. We can confidently say that in its price range, it is one of the better sounding televisions. However, we believe that those deciding to purchase the C4 will already own a dedicated audio set. The presence of DTS-HD Master Audio and Dolby Atmos codecs will not be without significance.

The TCL C7L performs quite well and correctly. When it comes to sound quality, there has been practically no change compared to last year's model, the C7K. The manufacturer continues to use a speaker system branded Bang & Olufsen in a 2.2 configuration. The only thing that can be quite irritating during viewing sessions is the fact that after increasing the volume to higher levels – around above 50% on the scale – the volume no longer corresponds with the scale visible on the screen. The B&O audio system works great for daily viewing of current affairs or series at moderate volume, but if you are looking for good sound quality, it is worth purchasing at least a basic soundbar for the C7L.

LG OLED C4 vs TCL C7L

Advantages

Disadvantages

Our verdict

TV appearance

Where to buy

Contrast and black detail

HDR effect quality

Factory color reproduction

Color reproduction after calibration

Smoothness of tonal transitions

Image scaling and smoothness of tonal transitions

Blur and motion smoothness

Console compatibility and gaming features

Input lag

Compatibility with PC

Viewing angles

Daytime performance

Panel details

TV features

Classic features:

Smart features:

Sound connection options

Supported audio formats (external HDMI eARC audio):

Senior accessibility

Google TV and Smart TV

Television Features

Apps

Playing files from USB

Sound

Sound Quality Test

Acoustic Measurements