QN80F is a representative of the Neo QLED series, which means it's a television with Mini LED backlighting. Unlike its cheaper cousin, the QN70F model, here the diodes are placed directly behind the panel (rather than at the edges), which gives a solid advantage in contrast control right from the start. In the 65-inch variant we tested, we counted 88 local dimming zones – a result that may not be particularly impressive, but as it turned out, sufficient to achieve quite decent results.
In tests based on scenes from movies like Oblivion and The Meg, the QN80F performed well – blacks were deep, and the overall image consistency was eye-catching. However, in more demanding moments (e.g., scenes with a lot of bright details on a dark background), a halo effect appeared. This is where the limitation of the number of zones shows – bright elements could bleed into each other, and some details in dark areas lost sharpness and contrast. In one of the helicopter scenes (The Meg), we even noticed a slight flicker in brightness, as if the television was trying its best to maintain visibility of details at the expense of black depth.
However, these are not problems exclusive to this model – the halo effect or contrast drops in very complex scenes are something most Mini LED televisions struggle with, even the more expensive ones. In its class, the QN80F still performs positively and offers clearly better contrast than the QN70F model with edge lighting. For most users, this will be a level more than sufficient – though not ideal.
In terms of contrast, the Xiaomi S Mini 2026 performs really well. The TV uses a VA panel and a Mini LED backlight with 308 local dimming zones in the 55-inch model. Although on paper the number of zones doesn't make as strong an impression as in pricier models, in practice the TV handles dark scenes very well. In shots where small bright objects appear on a black background, it can effectively dim the rest of the image. As a result, blacks are deep and contrast in many movies can resemble what we’re used to from OLED TVs. Of course, not every scene is equally easy for a local dimming system. When there are more bright elements or they’re located close to each other, you can notice a slight halo around them. That's a typical limitation of Mini LED TVs, and Xiaomi is no different from the competition here. What deserves praise, however, is the backlight control algorithm itself. Compared with the previous generation it works much more stably, so you won't see annoying flicker or sudden changes in brightness between consecutive shots.