When it comes to image dynamics and brightness, the QNED80A has its feet firmly on the ground. It is not a "light beast" – during our measurements, peak brightness oscillated around 350-400 nits. To put it plainly: these are values that will not allow HDR formats to fully spread their wings. So don’t expect the glare of the sun or car headlights in movies to blind you. However, this TV has a powerful ace up its sleeve that saves the overall view of the image – it is the colors. LG engineers have implemented an advanced filtration system here (technically likely based on a PFS phosphor, marketed as QNED/NanoCell), which does a fantastic job. Thanks to it, despite the average brightness, the screen can generate exceptionally saturated and pure colors. Our instruments showed coverage of the wide DCI-P3 cinema palette at the level of 93-94%. This result outclasses most standard LCD TVs. In practice, this means that when watching 4K HDR content, the image – while not particularly bright – is very plastic, vibrant, and pleases the eye with the depth of colors.
The Samsung S90H in the WOLED variant is still an exceptionally bright TV for its price class, although it is slightly dimmer compared to the QD-OLED version. The difference is not as pronounced as in last year’s F series, where gaps could reach as much as 500 nits. Here the specs of both panels are very close, and differences in peak brightness are only about 100–150 nits. In small-area measurements, the S90H on the WOLED panel easily reaches levels close to 1500 nits. That headroom lets it portray HDR dynamics phenomenally—specular highlights, reflections or explosions have the right punch, just as the creators intended in the post-production studio. As with most OLED displays, when a very bright scene fills the entire screen, the protection systems that safeguard the panel kick in and brightness naturally falls to around 700 nits. It’s worth stressing that this is still an excellent result on the market, often noticeably better than many Mini LED screens in the same segment.
Color gamut coverage
The biggest difference between the two S90H variants lies in color reproduction and saturation. This stems directly from the different construction of the WOLED panel, which uses an additional white subpixel. As a result, colors at very high brightness don’t achieve quite the same intensity, and the volume of the wide color gamut is somewhat more limited than with QD-OLED. That said, in everyday use these differences will be hard for most viewers to notice. Our measured DCI-P3 coverage on the WOLED panel reaches nearly 99%, which means that in the vast majority of real film scenes both variants will deliver almost identical images. The true gap only appears in rarer, particularly demanding productions that use the ultra-wide BT.2020 gamut. Due to the WOLED panel’s design, coverage of that standard is about 15% lower compared to the S90HAT with a QD-OLED panel, so the brightest, heavily illuminated HDR colors may appear a bit less vivid.