LG UA75006LA (IPS) vs Samsung S90H (WOLED)

The version with an IPS panel looks even more modest, where the peak brightness barely reaches 250 nits. In practice, this means that a real sense of HDR effect is out of the question, and the materials viewed resemble rather ordinary SDR. Similar to VA panels, the image behaves stably on most test patterns, but in demanding scenes with fine details, the television has a tendency to slightly dim the image. This allows for slightly better blacks; however, this comes at the expense of losing detail in bright elements. The absence of additional colour filters is also noticeable here. The UA7500 with an IPS panel does not belong to QLEDs or PFS LED panels, and the DCI-P3 colour gamut is limited to 80%, meaning that HDR films lack significant colour depth and appear quite flattened.

Samsung S90H in the WOLED variant is still an exceptionally bright TV for its price bracket, although compared with the QD-OLED version it is slightly dimmer. The difference is not as significant as in last year’s F series, where the gap could reach as much as 500 nits. Here the parameters of both panels are very similar, and differences in peak brightness are only in the order of 100–150 nits. In small-area measurements the S90H on the WOLED panel easily reaches levels close to 1500 nits. Such a reserve of power allows HDR dynamics to be reproduced phenomenally; all highlights, light reflections and explosions have the necessary punch, exactly as the creators intended in the editing studio. As with most OLED displays, when a very bright scene fills the whole screen protection systems activate and brightness naturally falls to around 700 nits. It is worth emphasising that this is still an excellent result on the market. Often noticeably better than many Mini LED screens in the same segment.

Colour gamut coverage

The biggest difference between the two S90H variants lies in colour reproduction and saturation. This results directly from the different construction of the WOLED panel, which uses an additional white subpixel. As a consequence, colours at very high brightness do not reach the same intense saturation, and the volume of the wide gamut is somewhat more limited than in QD-OLED. That does not change the fact that in everyday use these differences will be hard for most viewers to spot. The DCI-P3 space we measured reaches nearly 99% on the WOLED panel, which means that in the vast majority of real film scenes both variants will present an almost identical picture. The true distance only reveals itself in rarer, exceptionally demanding productions that use the ultra-wide BT.2020 gamut. Due to the specifics of the WOLED panel’s construction, coverage of that standard is about 15% lower compared with the S90HAT with a QD-OLED panel, so the brightest, heavily lit colours in HDR may appear slightly less vivid.

The Filmmaker mode on the LG UA7500 performs better than one might expect from such a budget television, but let's not get carried away with praise. The picture is quite well put together and does not irritate at first glance, but its weaknesses soon start to show. This is most evident in scenes with bright points – lamps in the background or reflections of light on the skin are distinctly overemphasised. Characters' faces often appear unnatural, as if they have been 'overexposed'. Additionally, the default gamma setting brightens even the smallest details, causing the image to lose subtlety in darker areas. However, it remains true that for its price bracket, the UA7500 in factory mode offers a fairly decent starting point. It is clear that without additional adjustment, it will not be possible to avoid these issues, which is why – as with other televisions – we decided to see what could be achieved after calibration.

In Filmmaker mode, which we strongly recommend switching on straight out of the box, the S90H offers very good factory colour tuning. Colours are natural and faithful to the creators' intent, without the irritating oversaturation found in more aggressive presets. However, as is often the case without full calibration, no two units are identical. In our test the white balance was slightly lacking in blue, causing the image to lean a little towards warmer, yellowish tones. This was most noticeable in bright scenes, such as the snowy sequences from Star Wars. Additionally, the gamma curve was slightly low at 2.2, which produced a minor lift in shadow detail. In HDR mode the tuning was somewhat better, showing only a slight undersaturation in the red region.

The greatest improvement we noticed was during the calibration of the mode intended for everyday SDR content. We managed to smooth out the white balance in an acceptable way and control the issue of excessive brightening of fine details due to the gamma characteristics. As a result, the image gained the consistency and naturalness that was lacking in the factory settings. After this correction, we can confidently state that for everyday television content, programmes, or materials from YouTube, the LG UA7500 performs really well – especially after professional calibration. The situation is somewhat different for HDR content. Here, calibration allowed us to tame the white balance and slightly improve brightness management, but the limitations of the design are immediately evident. The lack of additional filters expanding the colour palette means that the most vibrant colours appear flat, and the image does not have the intensity one would expect from good HDR. Therefore, in SDR, the UA7500 performs quite well, but in HDR – despite the corrections – it remains far behind, and this is a feature one must accept when choosing this television.

After a full calibration it’s fair to say the S90H in WOLED guise looks almost perfect. In SDR mode colour inaccuracies drop to ultra-low levels and Delta E values very rarely exceed 2. That’s a phenomenal result, so if you care about perfectly faithful colour reproduction it’s definitely worth considering calibration. The calibrated HDR mode also performs very well, with the white balance stabilised and earlier deviations eliminated. After professional fine-tuning it’s really hard to find anything to criticise, because the TV delivers an image with almost reference-level naturalness and three-dimensionality. The slightly lower score in this category compared with the QD-OLED variant is solely due to the aforementioned limitation in saturation in extremely bright scenes; the tuning options and colour fidelity themselves are at the highest level.

The version with the IPS panel performed noticeably worse here. Image scaling was uneven – this was particularly evident in lower quality materials, where edges became jagged and the image appeared less detailed. At times, there was also a slight blur that diminished sharpness and made the overall impression seem less refined than in the VA version. The solution proved to be the tonal transition smoothing function. On the medium setting, it worked very well – it did not spoil the image with excessive softening, while simultaneously smoothing colours in such a way that everyday content gained coherence. The difference was particularly noticeable with television programmes or streaming materials with poorer compression quality, where the television with the function on presented itself much better. This is one of those additions that are worth keeping active, as they significantly enhance the experience of daily content.

In terms of posterisation reduction itself, Samsung has kept the solutions known from last year’s models. The dedicated gradient-smoothing function performs quite well and can effectively mask unwanted tonal banding, which is useful on a WOLED panel that is slightly more prone to banding. However, you should be aware of its aggressive behaviour. This mechanism, alongside the artefacts themselves, can clean up fine film grain and gently soften detail. Ultimately it is a matter of compromise, but if you want an absolutely faithful reproduction, it is safer to leave this option off.

Similarly, in the area of scaling it is difficult to call this a breakthrough. The S90H uses the same NQ4 Gen3 processor as its predecessor, so the upscaling quality was almost identical. The chip sharpens lower-resolution material very well, extracting a satisfying level of detail. Samsung still has not dealt with the longstanding overscan issue, though. With some older recordings or archive footage the edges of the image can be slightly cropped. It’s a minor flaw, but it’s a pity the manufacturer still hasn’t eliminated it.

LG UA7500 is a television with a 60 Hz panel, so it is difficult to expect much excitement in this category. It is rather a screen designed for everyday content or an evening film screening rather than for following dynamic sports events or playing action games. It is clear that the manufacturer aimed this model at this group of consumers – and in this regard, it performs adequately. We have the TruMotion function available, which is a motion smoother. It is simple, has only one slider, but can make a noticeable difference. At the lower range, the picture looks more raw and cinematic, while at higher values, the motion becomes smoother and more pleasant to the eye.

In terms of motion handling, the S90H is simply excellent. This year's panel offers a boosted refresh rate of up to 165 Hz, though in practice the benefit will mainly be for gamers connecting a high-end PC. For films, series or sports broadcasts such a high refresh rate makes no difference and the picture looks exactly the same as at the standard 120 Hz. Regardless of the source, however, the OLED panel's lightning-fast response time does its job, so motion is clean and the ghosting or smearing familiar from LCD screens simply does not occur here.

LG UA7500 is a television that can be confidently recommended to "casual" gamers. While it lacks a 120 Hz panel and HDMI 2.1 ports, so fully utilising the potential of modern consoles is out of the question. However, the manufacturer has included a few features that can enhance the gaming experience. Noteworthy is the Game Bar – a very well-designed panel where you can quickly preview and change the most important settings. From this panel, we have access to various features, including the ALLM mode (automatic switching to game mode) and frame synchronisation, namely VRR. The range of VRR is limited – it operates from 48 to 60 Hz – but the mere presence of this feature in such an affordable television leaves a positive impression.

Additionally, there is support for HGiG, which is the HDR calibration mode for gaming. This sounds good, but from our testing experience, we know that in the case of the UA7500, this option is not particularly useful. The television does not perform very well with HDR, so paradoxically better results were achieved with this mode turned off. This is another signal that the UA7500 is more of a screen for occasional gamers who value simplicity and convenience rather than for those seeking a full immersion experience with the latest consoles.

Players should feel at home with the S90H, because Samsung has left few reasons to complain in that respect. The TV has four HDMI 2.1 ports, each of which supports VRR, ALLM and high refresh rates. There’s also the Game Bar, a handy menu that lets you quickly check key parameters and change settings without leaving the game. Importantly, Samsung has also improved HGiG mode. In last year’s models it could cause problems when used with a console, but on the S90H it now works as it should. What really stands out against the competition is the Game Motion Plus feature. It’s a special motion smoothing mode for games that works best with titles running at 30 or 60 fps. Motion becomes noticeably smoother, while latency remains at a reasonable level. In our measurements it was under 50 ms, so gaming is still comfortable. That’s important, because on many TVs enabling a similar smoothing feature causes such a large increase in input lag that controls become noticeably sluggish. Samsung has managed to find a good compromise here. There’s still no Dolby Vision Gaming, but in practice Game Motion Plus may prove to be a much more useful feature.