IFFALCON U85X vs Samsung S85H

iFFALCON U85 handles HDR in a rather dual manner – on one hand, it can surprise with a solid peak brightness of around 650 nits, which places it well above average in this price segment. This is particularly evident in full-screen, bright scenes. Examples from movies like Life of Pi or the final test sequences from The Meg prove that the TV can maintain the strength and essence of the HDR effect when the entire panel has to "light up," delivering truly satisfying experiences. However, problems begin in high-contrast scenes, where smaller, bright details appear on the screen; the dimming algorithms prioritize deep blacks to such an extent that they can suppress the brightness of small highlights to just 100 nits, drastically reducing the dynamism of the image and depriving us of the true "punch" we expect from HDR standards. However, the question of colors remains a sweetener; thanks to the use of the PFS phosphor filter (marketed as QLED by the manufacturer), they look very good, achieving nearly 94% coverage of the DCI-P3 color palette, allowing for a rich and vibrant image in most content.

Interestingly, the new WOLED SE panel has brought a slight improvement in brightness to the S85 series. In the same movie scenes the previous year's model stayed closer to about 700 nits, while the S85H can reach around 800 nits. Of course this isn't a change that completely transforms the HDR experience, but that extra headroom is noticeable especially with small highlights, reflections, and stronger special effects. Around 800 nits is already a very good result for an entry-level OLED and in most films it's enough for HDR to have the right impact. Bright elements can clearly stand out from perfect black, and that contrast still does most of the heavy lifting here. You should remember the typical limitation of organic technology, though. When a very bright scene covers a large part of the screen, brightness can drop by almost half. This is the result of the panel's protection mechanisms, which limit its power with large bright areas.

Colors

The S85H can produce very pleasant, saturated colors and in most HDR films it looks really good in that respect. We measured roughly 95% DCI-P3 coverage, so the palette most often used in movies is reproduced to a very large degree. Skin tones, greens, and stronger reds still have appropriate intensity, and during normal viewing it's hard to fault them. Only when you look more broadly at BT.2020 do the limitations of the new WOLED SE panel become apparent. Coverage was around 70%, a bit less than in previous-generation WOLEDs and noticeably less than in QD-OLED panels. In films this isn't a major loss, because most productions rarely use such highly saturated colors. You notice it more often in games, where developers are much more likely to employ more intense colors.

We tested the factory colors in the iFFALCON U85X model in “Film” mode, which is definitely the most reliable among all available settings, although it is still far from perfect. The main problem that stands out in both SDR and HDR content is improper white balance - an excess of blue and red components gives the image a slight purple tint, which undermines the naturalness of film scenes. However, an even greater challenge is the way the television manages its brightness. Analyzing the gamma curve for the SDR signal, we noticed significant instability: instead of sticking to the reference value of 2.4, the device oscillates around 2.2, only to suddenly experience an unnatural jump to around 3.0. In practice, this leads to confusing effects - large bright areas on the screen appear too dark, while smaller elements are unnecessarily brightened. A similar feature can be found in the EOTF curve, which makes the image unpredictable and loses its cinematic authenticity.

To evaluate color we, of course, selected Filmmaker mode, and in SDR our S85H unit was very well calibrated out of the box. The biggest deviation appears in the white balance, where a bit of blue drops out as brightness increases. In practice this means whites and grays have a slightly warmer tint than they should. It's not a major error and during normal viewing it generally isn't very noticeable. Gamma also stays close to the reference value, so the image is neither overly bright nor unnecessarily dim. The S85H's SDR picture quality is therefore very good straight out of the box. A few more imperfections show up in HDR. Here the white balance shifts more as brightness increases, with blue becoming dominant and the red component noticeably lacking. That also leads to larger errors in some colors. These aren't yet distortions that completely change the character of the image, but compared directly with the reference the difference is easier to spot. Overall, Filmmaker mode is a very good starting point before professional calibration.

After professional calibration of the movie mode, we must admit that the effect is more than satisfactory – the iFFALCON U85X undergoes a true transformation. Color errors in SDR content dropped to a level below 2, making them practically imperceptible to the human eye. We managed to set the white balance almost perfectly, and brightness management (gamma) became nearly exemplary. As a result, with standard quality materials, the television looks simply perfect, and it's hard to find any faults with it.

In the case of HDR signal, the situation has also improved significantly, although here the nature of the device is a bit more pronounced. Color errors have been reduced to around 3, which is an outstanding result in this price range. However, it is worth taking a look at the EOTF chart (available on the right side of the screen in the filters: 4K HDR, gamma / EOTF) to see what is not immediately visible regarding brightness management by the U85. Although the reference line looks decent, in actual film scenes, the television still interprets the signal "in its own way" due to very aggressive local dimming algorithms. Does this disqualify this model for watching HDR content? Absolutely not. It's simply a typical ailment of almost every Mini-LED that has to reconcile high brightness with an attempt to maintain deep black. One just has to be aware of these technical limitations, which are unavoidable in this segment.

Calibration yields very good results on the S85H. First, the white balance can be set almost perfectly, which removes the slightly too-warm image cast that was visible earlier in SDR. Color reproduction itself also improves significantly; most errors drop to a very low level, and in everyday viewing it's hard to notice any visible inaccuracies. You can also improve a lot in HDR, although some issues remain due to the TV's inherent characteristics. The S85H doesn't always perfectly follow the brightness curve. The darkest areas are slightly boosted, and as you approach the panel's limits you can see small deviations in the brightest highlights. On top of that there's limited coverage of the wider BT.2020 gamut, which no calibration can of course overcome. Despite this, the end result is very good, and after calibration the S85H can deliver a well-tuned, natural image.

When it comes to scaling the image to 4K resolution, the iFFALCON U85X performs solidly. The device efficiently enhances low-quality signals, making even older materials look clean and clear on the 4K matrix. At extremely low resolutions, such as 480p, you can notice slightly jagged edges (especially on thin lines), but let's face it – this is a scenario you'll only encounter when watching very old footage, so it's not a real issue in everyday use.

However, the digital processing aimed at smoothing tonal transitions is significantly worse. Although the menu features a function called “Gradual Smoothing”, its effectiveness is at least debatable. In practice, it does not effectively reduce banding (color stepping), and worse, it can cause more harm than good. This filter can be too aggressive where it shouldn't be, artificially smoothing out details that should not be touched, such as the natural texture of the face or fine details of the skin's texture. Instead of improving quality, this feature can give the image an unnatural, “plastic” look, so it's best to use it with great caution or, better yet: leave it turned off.

For the S85H, Samsung used the same proprietary NQ4 Gen2 AI processor as in last year’s S85F, and in terms of digital image processing it performs quite well. Upscaling is one of this model’s strengths. Lower-resolution content is well sharpened, edges look natural, and the image doesn’t feel overly artificial. Just bear in mind a common Samsung quirk: at very low resolutions you can’t completely disable overscan, so the TV may slightly crop the left edge of the image. The "noise reduction" function, which smooths weaker tonal transitions, also works very well. The processor can effectively remove posterization and other imperfections visible in lower-quality material. However, you need to be careful with the strength of this feature, because Samsung can be fairly aggressive here. When it’s enabled, along with unwanted artifacts, fine image details such as the texture of skin or clothing can start to disappear.

In contrast to budget constructions, which in dynamic sports scenes may resemble a slideshow, the iFFALCON U85X is a heavyweight contender equipped with a panel featuring a native refresh rate of 144Hz. However, it is worth remembering that in the world of movies, series, or sports, we will mostly operate at 120Hz due to the specifics of image enhancement systems. Such a fast panel is excellent news for gamers and sports fans, as it opens the door to advanced motion settings that simply don't exist in cheaper 60-Hz models.

We manage everything from the "Motion Clarity" menu, where instead of using pre-set, often too aggressive modes, we definitely recommend a custom configuration based on two sliders. The most important of them, reduction of flicker, is responsible for smoothness in films – here, it's best to aim for a value around 4, which will maintain a natural, cinematic character of motion without falling into the artificial "soap opera effect." On the other hand, the first slider, reduction of blur, is the key to success in sports broadcasts. In this case, it's worth going all out and setting it to maximum, ensuring that the image during fast actions on the field remains sharp, and annoying trailing is eliminated.

The S85H uses an OLED panel, so it performs excellently when it comes to motion blur. Pixels respond virtually instantly, so moving objects don’t leave the characteristic ghosting seen on some LCD TVs. This is especially noticeable with sports or fast-paced games, where the image stays very clean even during rapid motion. The panel runs at 120 Hz. That’s more than enough for movies, TV series, sports, or console gaming. It’s a bit of a shame Samsung didn’t include a higher refresh rate aimed at PC gamers, since more and more TVs now offer 144 or even 165 Hz at 4K. However, that doesn’t affect motion perception in films or sports. There’s also the classic motion smoothing feature with two settings, blur reduction and judder reduction. So you can choose whether films should keep their cinematic 24 frames per second or if you prefer to smooth them a bit. The S85H gives you plenty of flexibility here, and the interpolation works well and, with reasonable settings, doesn’t produce too many artifacts.

iFFALCON U85X is an exceptional device for gamers that has virtually everything you can expect from a modern screen for consoles or PCs. Here we find two fully-fledged HDMI 2.1 ports with full bandwidth of 48 Gbps, which opens the door to key technologies such as VRR and ALLM, ensuring smooth gameplay without tearing and with minimal latency. The TV handles high refresh rates at various resolutions without any problem, and a real curiosity is the mode that allows for up to 240Hz when dropping to Full HD quality. The entire system is managed by the Game Bar (a faithful copy from TCL), which allows for instant switching of picture modes, customization of the interface appearance, or even adding a virtual crosshair in the middle of the screen.

The Samsung S85H is very well set up for gaming, whether you connect a console or a PC. The manufacturer didn’t skimp on ports and all four HDMI inputs support full HDMI 2.1. That means you can use 4K at 120 Hz, VRR, and ALLM without worrying which input to plug your console into. With several devices that matters, because you don’t have to choose between a console, a PC, or a soundbar connected via eARC. The feature set itself is very comprehensive. The S85H supports VRR, FreeSync, and automatic switching to game mode, and Samsung offers its comprehensive Game Bar, which lets you quickly view key signal parameters and change settings without leaving the game. The only real omission is Dolby Vision, which will matter mainly to Xbox owners. That’s a typical trait of Samsung TVs. Game Motion Plus performs very well and is one of the features that have set Samsung TVs apart for years. It smooths motion in games running at 30 or 60 fps, but does so without as large an increase in input lag as traditional motion smoothing. In practice, with more relaxed games, racing titles, or action games this can really improve perceived motion, especially if you’re sensitive to low framerates.