TCL P755 vs Samsung S85H

The TCL P755 delivers an average HDR experience, with a maximum brightness of just under 300 nits. This limitation affects the intensity of bright areas in HDR content, reducing the contrast impact, as bright elements may appear less pronounced. However, the TV compensates with an impressive 93% coverage of the DCI-P3 colour gamut, which brings vibrant, saturated colours that enhance the quality of HDR content. Despite the brightness cap, the extensive colour range enriches hues, providing a more lifelike and visually engaging viewing experience.

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.

In Cinema mode, the colour reproduction on the TCL P755, while set to the best factory configuration, falls short of ideal accuracy. The primary issue is the white balance, where the red component is notably elevated and the green is reduced. This imbalance shifts colours towards red, making them appear unnatural, particularly in scenes featuring white or neutral tones. This issue is highlighted in the Colour Checker test, which shows a discernible red bias affecting the realism of the image and diminishing the perception of colour depth.

Examining contrast performance, the gamma graph analysis reveals notable inconsistencies, especially in darker areas, where values dip below the target level of 2.4. Consequently, shadows and darker sections are displayed brighter than intended, impacting overall contrast. Furthermore, the EOTF (Electro-Optical Transfer Function) curve, essential for accurate brightness representation, veers slightly above the reference curve. The data shows a boost in brightness up to around 50% before a gradual levelling off. This creates excessive mid-tone brightness, which can lead to loss of detail and some distortion in brighter scenes, ultimately affecting the clarity and immersion of the viewing experience.

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.

Post-calibration, the TCL P755 delivers a markedly improved colour performance for SDR content. The colour curves now align closely with ideal values, with a more consistent gamma stability across the range. While a slight drop at the beginning of the gamma curve persists, the accuracy in colour reproduction is significantly enhanced. The Colour Checker test reveals most colour samples are now under an error threshold of 2, showcasing much-improved colour fidelity with only minimal deviations, resulting in colours that feel notably more authentic to life.

HDR content benefits from these calibration adjustments as well. White balance corrections lend a more natural tone, with colours appearing more balanced overall. The EOTF curve, while nearer to the ideal reference line, still features a mild brightness elevation at the start, which can cause minor distortions in exceptionally bright scenes. However, overall tonal quality and detail resolution have both improved. Tone mapping also performs more effectively, enhancing detail in bright regions while maintaining better image accuracy.

In summary, while calibration does not bring flawless performance, it makes a substantial difference in the P755’s visual quality. Following these adjustments, the television provides a more accurate, realistic viewing experience in both SDR and HDR content, smoothing out many of the previous colour inconsistencies for a more visually engaging result.

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.

The "Gradual Smoothing" function on the TCL P755 performs effectively, reducing visible boundaries between shades of the same colour and creating smoother tonal transitions. Unfortunately, this feature is unavailable in HDR mode, which can impact the quality of tonal gradations in high dynamic range content.

In terms of image scaling, the television shows some limitations. There are visible edge cut-offs, especially noticeable around figures and tree branches, which result in some detail blurring and a reduction in overall image sharpness. This is particularly noticeable when viewing lower-resolution content. Additionally, SD-quality images display a slight crop at the top and bottom, which may further impact viewing for standard-definition content.

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.

The TCL P755 delivers satisfactory, though not flawless, motion smoothness. It includes a "Flicker Reduction" feature for films, allowing users to fine-tune motion smoothness on a scale from 1 to 10. This setting offers flexibility in tailoring the image to cinematic or more theatrical preferences, adjusting for a slower or faster appearance according to personal viewing taste.

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.

The TCL P755 comes equipped with gamer-oriented features like ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gaming, and a Game Bar. ALLM automatically activates low latency mode to enhance response times and reduce input lag, while VRR syncs the screen refresh rate with the console's frame output, minimising screen tearing for a smoother gaming experience. Dolby Vision for gamers brings improved colour and contrast for compatible games, and the Game Bar allows easy access to essential settings like response time.

However, the 60 Hz panel limits the display to this refresh rate across resolutions, which may impact the fluidity in high-motion games. The absence of G-Sync also affects PC gamers, as gameplay on computers lacks this technology's extra smoothing. Notably, HGiG mode, meant to optimise HDR game visuals, is not fully functional on this model, which slightly detracts from the HDR gaming experience.

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.