LG OLED G4 vs Panasonic Z95B

The LG G4 excels in delivering an incredibly vivid HDR experience, positioning it as one of the best models in its class. Equipped with second-generation Micro Lens Array (MLA) technology, it achieves a remarkable peak brightness of 1474 nits in real-world scenes. While it may not match Mini LED-backlit LCD TVs in full-screen white scenes, the overall performance is outstanding. The fine details in HDR content shine brightly, a distinct advantage of OLED technology over non-OLED displays. With this impressive brightness and wide DCI-P3 colour gamut coverage, HDR content is brought to life with unmatched engagement and immersion.

The quality of HDR in the Panasonic Z95B belongs to the absolute elite. Thanks to the latest generation panel, named by the manufacturer Primary RGB Tandem OLED, the television can achieve over 2000 nits of brightness in movie scenes. The effect is impressive and can amaze with the intensity of light, giving a sense of contact with the screen that goes beyond previous experiences. Similar sensations accompanied us only during tests of the LG G5, Samsung S95F, or Philips OLED910. Of course, there are moments when the device's algorithms decide to limit luminance – this especially applies to full-screen bright sequences, such as the closing credits in the movie The Meg. Even then, the Z95B maintains a level of around 1500 nits, which is still a result that makes a huge impression. One can say that HDR in this model has been brought to a masterful form. A significant step forward is also visible in the reproduction of the color palette. The new tandem OLED panel does not yet match the best QD-OLED screens in terms of full gamut coverage, but the gap between these solutions has significantly narrowed. When watching movies, the differences are subtle enough that it's hard to notice them under normal conditions, and the colors remain vivid and saturated.

Before calibration, the "Filmmaker" mode on the TV had a noticeable red and green colour dominance, resulting in a warm-yellow hue across both SDR and HDR content. This warm tone, typical of modes like "Cinema" and "Filmmaker," led to a yellowish cast that was evident when switching from the "Standard" mode.

Looking at the brightness characteristics, the Gamma chart showed decent performance for mid-tones and bright whites, but it struggled with the darkest details, which tended to merge into a black blob. HDR content, as represented by the EOTF curve chart, displayed a drop in contrast due to excessive brightness, which overshadowed fine details and negatively affected the overall image quality. Additionally, the "ColourChecker" chart revealed that colours were under-saturated, contributing to a less accurate and vibrant visual experience.

This provided a good foundation to build on, but calibration was needed to bring out the full potential of the "Filmmaker" mode and address these issues.

The factory color reproduction in Filmmaker mode, my friends, is a true phenomenon in the case of the Panasonic Z95B. I'm talking about our test unit, but the result was so good that it's hard to believe. The only detail to nitpick is a slight lack of blue in the white balance, but other than that, the television, right out of the box, displayed an image like we've never seen in factory mode. Color palette tests, Color Checker – everything pointed to values below Delta 2. This is a much lower result than the threshold of human eye perception, which means, quite frankly, that the viewer stands no chance of noticing serious deviations. It looks as if Panasonic really calibrated this model at the factory stage. Of course, we cannot rule out that we got an exceptionally well-set unit, but the result is still impressive. We are very strict in our assessments of factory calibration, and here our jaws simply dropped.

The manufacturer has been offering extensive support for the calibration process in its LG televisions for many years. Therefore, we used 2- and 20-point grayscale adjustments along with an advanced CMS (Colour Management System) to optimise the display. As shown, the calibration procedure greatly improved each parameter. The results included studio-quality colour reproduction, enhanced detail in dark areas, corrected brightness characteristics, and accurate colour saturation. This led to a near-perfect match with the reference image—the one the film director saw on the preview monitor. It’s also worth mentioning that LG G4 televisions are unique in offering even deeper image adjustments through 3D LUT matrices, a feature primarily suited for post-production or graphics studios.

The color reproduction after calibration in the Z95B is a topic that is difficult to elaborate on for long because there simply wasn't much to be done here. A slight adjustment of the white balance was enough to eliminate the lack of blue, and at that moment the picture jumped to an almost reference level. I must admit that we haven't had such a small scope of work in a long time. If any of you are particularly observant, you might notice minimal deviations in the EOTF curve, but this is more related to the operation of the dynamic tone mapping function that we mentioned earlier. Really, this is not a flaw, but rather a feature of this solution, which intentionally changes the brightness characteristic depending on the scene. In summary, we are extremely impressed. The Panasonic Z95B is a television that already looks great right out of the box, and after calibration, it reaches a level where it is really hard for us to find anything to improve.

The LG G4 does not perform well with materials rich in tonal transitions, leading to a pronounced posterization effect. However, the manufacturer has included a smoothing system called "Gentle Gradation," with three levels: Low, Medium, and High. These settings are effective at smoothing bright colours, though less so for darker tones. It is recommended to use the Low setting, as the higher levels can distort the director's intentions by removing film grain.

When it comes to upscaling lower-quality material, the television's performance is quite good, delivering a sharp and clear image. However, attention should be paid to the jagged edges of fine details and the occasional halo effect around figures. This occurs due to the sharpening imposed by the LG G4, even when the lowest setting is selected (0). This is a noticeable change from the LG G3, which did not apply such strong sharpening, even at setting 0.

Let's start with what works well. The upscaling in the Z95B is at a very high level – the picture in lower resolutions is clear and sharp, with only minor drawbacks being slight aliasing in some areas of the image. It's also important that the television does not crop the material in any way and maintains its aspect ratio, which is not always an obvious fact even in 2025.

The situation is worse when it comes to digital processing. Features such as "gradation smoothing" or "block noise reduction" practically do not work – the tested material looked identical regardless of the settings. We might as well point out that this function simply doesn't exist. This is somewhat disappointing, especially since Panasonic strongly promotes its HCX Pro AI II processor, boasting of the presence of artificial intelligence that improves picture quality. Meanwhile, in such a basic matter, the television does not deliver a real effect and looks worse than one might expect from top-of-the-line equipment.

The LG G4 offers a maximum refresh rate of 144 Hz, achievable when connected to a powerful PC. For most users, however, the TV operates at a maximum of 120 Hz, ideal for watching sports or other content with fast motion. To improve image fluidity, the television includes the "TrueMotion" motion smoothing system, which features two separate sliders: De-Blur (for the sharpness of moving images) and De-Judder (for judder reduction). These sliders allow users to adjust the level of smoothing between 0 and 10, ensuring everyone can find the ideal setting.

With a response time of 0.78 ms, the LG G4 delivers exceptionally clear images, outperforming LCD televisions, which can have much slower response times. This results in no trailing blur behind moving objects, as shown in the "UFO Test." The TV also provides precise control over motion smoothing, which is especially beneficial during fast-paced video game sequences. Thanks to OLED technology, the G4 eliminates ghosting, ensuring a crisp and clear image even during the most dynamic sports or action scenes.

The OLED matrix with a very high refresh rate already provides an extremely sharp image even in dynamic sports scenes, such as soccer or basketball matches, and the Z95B is no exception. It's also very important that the television is equipped with the proprietary image smoothing system "Intelligent Frame Creation." Among the available sliders, the most important one turns out to be the one named "film smoothness," because it allows adjusting the motion to personal preferences when watching 24-frame material, that is, movies – from a more "frame-like" appearance to a smooth, almost theatrical effect. It's a bit of a shame that Panasonic did not choose to push the latest OLED matrix to 165 Hz, as Samsung did with the S95F or LG with the G5, because we know the panel is technically capable of it. On the other hand, this is mainly an advantage for PC gamers, so for everyday viewing this is not a significant drawback as we are limited to 120Hz.

The LG G4 TV supports all the features encompassed by the HDMI 2.1 standard, making it a gaming powerhouse. During testing, every feature activated seamlessly, ensuring a smooth experience for both console gamers and PC users. Notably, the HGIG mode (HDR Gaming Interest Group) is implemented correctly, allowing games mastered to brightness levels higher than the TV’s maximum luminance to map tones accurately, preserving the game’s original visual integrity.

A notable highlight is the dedicated GameBar, which can be accessed at any time to quickly check or adjust game settings. More importantly, enabling VRR (Variable Refresh Rate) does not compromise contrast—a common issue in TVs with local dimming or Mini LED backlighting. This is thanks to the OLED panel’s self-emissive pixels, which maintain consistent contrast. However, a slight grey flicker may appear when VRR is enabled, though this is standard across OLEDs.

In summary, the LG G4, like most OLED TVs, is ideal for gaming and online competitions. Its HDMI 2.1 ports offer a full 48 Gbps bandwidth, supporting features such as VRR, ALLM (Auto Low Latency Mode), G-Sync, FreeSync, and HDR Dolby Vision gameplay, ensuring an exceptional gaming experience.

The Panasonic Z95B is completely equipped for gaming. Two HDMI 2.1 ports with full bandwidth of 48 Gb/s guarantee support for everything you can expect from a modern screen. There is VRR frame synchronization, an automatic game mode (ALLM), and full compatibility with HDR formats used in games. The TV supports both Dolby Vision for Xbox and the popular HGiG, which has been implemented correctly in this case, so it actually works as it should.

Although the brand is mainly associated with home cinema and equipment for filmmakers, there is also a place here for conveniences for gamers. It comes with Game Bar (or rather Game Circles) – visually it looks a bit unusual, but it does its job and allows you to quickly check the most important image parameters. What it really lacks for complete happiness is actually just four HDMI 2.1 ports instead of two. It's a minor issue, but one would expect a full set in a TV of this class.