Philips PML8709 vs Sony BRAVIA 2 II (S25M2)

Looking at the contrast results, we expected that the algorithms responsible for the zones in the Philips PML8709 would be at least decent. However, what we encountered during testing is difficult to explain. The average brightness we managed to achieve was just 350 nits, which is definitely too low to fully enjoy HDR effects. In practice, the TV barely stands out compared to an average SDR. The situation becomes even more surprising in test scenes, such as the second one from the movie Life of Pi or Sicario 2. Small light elements achieve just 120 nits there, making them practically imperceptible. Such a level of brightness is completely below modern HDR standards and significantly diminishes the experience of watching high-quality content. The only bright spot in this category is the very good coverage of wide color gamuts – DCI-P3 at 97% and BT.2020 at 83%. This ensures that colors are saturated and well-reproduced, which can somewhat improve the overall experience of watching HDR materials. However, the lack of adequate brightness means that even this cannot save the Philips PML8709 in this category.

Sony Bravia 2 II isn't a particularly bright TV and unfortunately that's immediately obvious in HDR. In our measurements brightness stayed around 300 to 330 nits, which is far too low for the brightest parts of the image to look truly impactful. In practice HDR here doesn't differ that much from regular SDR. Bright highlights, the sun or lamps are of course visible, but they lack the intensity you'd expect from HDR content. The Bravia 2 II is therefore much better suited to standard SDR material, where its limited brightness will be least noticeable.

Colour gamut coverage

The Sony Bravia 2 II also doesn't impress when it comes to colour. The TV doesn't use any extra gamut-expanding filter, such as the quantum dots found in QLED sets or a PFS phosphor layer. In our measurements it covered about 78% of the DCI-P3 gamut and roughly 57% of the very wide BT.2020. That's definitely too little to deliver truly saturated colours in HDR material. More intense reds, greens or turquoises will simply be less striking than on TVs with an expanded colour gamut. The Bravia 2 II is much better matched to the standard Rec.709 gamut used for films, series and SDR broadcast.

Though theoretically the Filmmaker mode in the Philips PML8709 should provide natural colour reproduction, in reality it resembles a store mode more. In the white balance, both for HD and 4K content, there is a clear dominance of blue. This causes the image to appear washed out and cold, which is particularly noticeable in the comparative image below.

The brightness characteristics also leave much to be desired. Both gamma and the EOTF curve exhibit excessive screen brightness. As a result, there is a loss of detail in both the brighter and darker areas of the image, further diminishing its credibility and naturalness. Bright elements appear unnaturally flat and little varied.

These significant issues with white balance and brightness characteristics lead to noticeable errors in colour reproduction, which can easily be seen in films as well as the Colour Checker test. The colours are inaccurate, affecting the overall image quality and visual experience. The factory settings require significant improvement in order to fully enjoy the potential of this television.

The out-of-the-box colour reproduction in Kino mode was really quite good, at least for ordinary SDR material. The Bravia 2 II had a slight tendency to boost reds, which made some colours lean a bit warmer, at times with a faint pinkish tint. That wasn't a major fault and during normal viewing the picture still looked fairly natural. There was a bit more going on with image brightness. Looking at the gamma curve, Sony doesn't stick perfectly to the reference value. The darkest areas are slightly lifted, while as brightness increases the gamma gradually rises and a large part of the image becomes darker than it should. However, the difference isn't big enough to seriously bother during everyday watching. Overall, SDR straight out of the box performs quite decently.

The situation is much worse in HDR. We've already mentioned the limited colour gamut, but on top of that the Bravia 2 II quite aggressively manipulates image brightness. The EOTF curve sits below the reference for much of the range, which means the TV renders most mid and brighter parts of the scene darker than the source material intends. Only towards the very end of the range does the curve flatten out, as the panel reaches the limits of its capabilities. Combined with a peak brightness of around 300 nits, this gives HDR that not only lacks much punch but can simply look too dark.

Philips offers advanced image calibration tools in its televisions, which we decided to fully utilise. The results? Although we managed to improve many aspects, it wasn't without difficulties. White balance was one of the biggest challenges – despite our efforts, it could be called fighting against windmills. We were able to significantly correct it, so the picture now looks much better than in the factory settings, but it is still far from perfect. Especially in some scenes, a subtle dominance of blue is visible, although not as intense as before. We achieved a significant improvement in brightness characteristics – gamma now appears much more stable. The EOTF curve looks correct at first glance, however, when analysing movie content, it is evident that the television has trouble maintaining the proper characteristics. The algorithms are "struggling", trying to adjust brightness, which may be due to the limited number of dimming zones that do not always handle more complex scenes well. Overall, the picture after calibration looks much more pleasing to the eye – colors are more natural, and colour reproduction errors have been minimised. Although it is still not perfect, the Philips PML8709 now presents itself much better than in the factory settings.

Calibration did a lot for the Bravia 2 II, especially with SDR content. Above all, we managed to even out the white balance and tidy up the gamma, which now stays much closer to the reference value. As a result, the image no longer has the earlier pink cast, and the brightness across different areas is much better organised. You can also see it in the colour errors, which after calibration dropped to a very low level (with only minor issues in the most saturated reds).

We also partly managed to rein in the Bravia 2 II in HDR, especially in the way the TV handles image brightness. However, there is one thing no calibration can fix: the panel's capabilities. A narrow colour gamut means the TV physically can't reproduce the most saturated colours recorded in HDR content. On top of that, the low contrast of the IPS panel causes darker scenes to be covered in a grey haze, which robs colours of some of their depth. So we can improve how the Bravia 2 II uses its capabilities, but we can't overcome the panel's inherent limitations.

The distortion reduction feature in the Philips PML8709 smooths tonal transitions, but its effectiveness leaves much to be desired. We recommend setting this option to "Medium" - at this level, the effect is noticeable but not excessive. Unfortunately, compared to other Philips models, the smoothing effect is less effective, meaning that certain tonal transitions may still appear somewhat uneven. An additional drawback is that this feature also smooths other details, such as the textures of materials like shirts, which can affect image sharpness.

As for image scaling, the television performs very well. The image appears smooth and free of noticeable "jaggies". This effect may appeal to many users, although some might prefer a more vivid look. Fortunately, the television allows for adjustment of the sharpness parameter, enabling us to tailor the image to individual preferences.

Upscaling on the Bravia 2 II performs quite well and the TV maintains the standard we've come to expect from Sony. Lower-resolution material is sensibly upscaled to 4K, and the image is slightly smoothed without excessive edge sharpening. It's less successful at dealing with content that shows visible compression artefacts. That's down to the "Digital Noise Reduction" function, which on the "High" setting can smooth some ugly banding. The problem is it does so quite aggressively and, along with the imperfections, removes a lot of fine detail, including natural film grain. What's more, when there's more motion on screen its effectiveness drops considerably and the improvement is minimal. For that reason we generally didn't use this feature for everyday viewing.

Philips PML8709 is one of the few models with mini-LED technology on the market, offering a refresh rate of 60 Hz. While it’s not a panel for the most demanding gamers, it should satisfy those who mainly watch movies. The TV is equipped with a “Motion Style” feature, which is a motion smoother that allows you to adjust the fluidity of motion according to your preferences – from a more “plastic” look to a cinematic aesthetic with clearly visible frames.

Bravia 2 II uses a 60 Hz panel and, for what it is, handles motion quite well. However, bear in mind it’s an entry-level panel and its limitations are especially noticeable with sports. The TV can’t interpolate 50/60 fps material to a higher refresh rate, so it can’t further improve the sharpness of fast-moving objects. For films and series there’s a conventional motion-smoothing feature that can reduce the judder typical of 24 fps material.

Philips PML8709 is a television aimed more at casual gamers, mainly due to the 60 Hz panel, which won’t meet the expectations of the most demanding users. However, for those who appreciate gaming at a more moderate pace, this model may prove sufficient.

The television offers several gamer-friendly features, such as ALLM (automatic switching to game mode) and VRR (variable refresh rate), which help in providing smoother image display without annoying stutters. Furthermore, in terms of HDR, we find the implementation of HGiG, which adjusts the HDR effect to the specifics of games, ensuring a more natural image in appropriately optimised titles. Unfortunately, there is no support for Dolby Vision mode, which may be noticeable in games that utilise this format.

A nice addition is the presence of a basic "Game Bar," which allows for quick previewing and modification of the most important settings related to gaming. It’s a simple but useful touch, especially for those who frequently change their configuration between different types of gameplay. Despite some limitations, the Philips PML8709 offers a solid set of features for less demanding gamers.

The Bravia 2 II isn’t a TV that’s particularly suited to gaming, and the feature list makes that clear pretty quickly. You basically only get automatic low-latency ALLM and a simple Game Bar where you can view basic signal info and change a few settings. That’s where the positives end. The TV doesn’t support VRR or 120 Hz (not even at lower resolutions) and on top of that it has problems correctly implementing HDR HGIG. It’s fine for occasional console play and, thanks to low input lag, the controls remain responsive, but if you’re after a TV primarily for gaming the Bravia 2 II is a significantly limited choice.