Sharp GP7 vs Philips OLED770

In terms of HDR, Sharp GP7 can pleasantly surprise us. A maximum brightness of around 500 nits is the threshold at which the real benefits of high dynamic range become visible. During our tests, we achieved stable values between 430 and 500 nits, which translated to clearer differentiation of elements in both bright and slightly darker scenes. Additionally, the DCI-P3 colour space coverage was around 95%, allowing for vibrant, visually pleasing colours. Of course, this is not the highest league, but considering this price range – it’s a big plus.

The Philips OLED770 does not attempt to compete with the brightest OLEDs on the market, and it would be difficult to expect that, as it is the entry-level model in Philips' range for 2025. In our measurements, it reached a maximum of around 700 nits, which allows enjoyment of HDR effects in scenes where light appears sporadically – for example, in the flash of headlights or a starry sky. In such moments, the image can truly be stunning. However, it is different when there are more bright elements on the screen. The television, like many cheaper OLEDs, limits luminance in those situations, causing the entire image to noticeably dim. This was best observed in a scene from the film The Meg, where the sun comes out behind an oil rig – the brightness then dropped to around 250 nits, which is almost three times less. The HDR effect remains pleasant to the eye, but it is worth being aware that this model performs best in scenes with less intense light. Fortunately, the OLED770 has a trump card – the coverage of the DCI-P3 colour gamut is as high as 99%, so colours in films and games are vivid and very close to what the creator intended to convey.

Upon removing it from the box, in movie mode, GP7 does not perform poorly at all. In HD materials, we noticed slight disturbances in white balance – drops in red and blue, which made the image have a somewhat greenish hue. This is evident, for example, on the faces of characters, which become less three-dimensional. The gamma is somewhat brightened in places, resulting in less deep blacks. In 4K HDR content, a cooler, bluish tone additionally comes to the fore, making the colours appear less natural. On the other hand, looking from the perspective of "straight out of the box," these settings are not bad – only minor adjustments are needed, and with the help of specific tools, we will try to improve them.

The first measurements already show that the factory settings of the Philips OLED770 have quite a lot to improve even in Filmmaker mode. The white balance chart clearly shows a lack of blue, resulting in a slightly yellowish tint to the image. In practice, the white is not snowy but leans towards warmer tones – which some may even appreciate, but from the perspective of accuracy, this is a deviation from the norm. The gamma, on the other hand, tends to the darker side – the average value is around 2.6 instead of the reference 2.4. In the midtones, the image appears subdued and more saturated, which may seem too "filmic," but detracts somewhat from naturalness. However, the most issues are evident in colour reproduction. The average error is relatively high, and some colours – particularly shades of grey – deviate significantly from what one should see. In everyday viewing, this means that sometimes colours may look less natural than we would like.

Calibration really makes a difference in Sharp GP7. After making adjustments, we achieved a better white balance in HD content, and the colours began to appear much more natural, with minimal deviations and without a noticeable dominance of individual hues. In 4K HDR, the change is not as spectacular, but still noticeable. The gamma has been brought to a more neutral level, although there remains an issue with a slight boost in the brightest details on the screen. The lack of control over dynamic tone mapping limits our manoeuvrability, but nonetheless, it is a significant step forward compared to the factory settings.

The Philips OLED770 from the outset signalled that it harboured significant potential, but in its factory settings, it was difficult to see this fully. The picture was often too warm, and some colours appeared to have lost their naturalness along the way. Calibration, however, revealed that it is a very responsive television – it reacted to every adjustment and almost immediately unveiled another layer of its capabilities. The white balance could be set in both SDR and HDR to eliminate the yellowish tint and introduce a neutral, clear white. The gamma stabilised closer to perfection, allowing midtones to regain their naturalness, and shadows stopped being artificially darkened, perhaps even with a slight brightening effect. The result was obvious... Films were watched with greater ease; the picture had cinematic depth, but without the feeling that something was exaggeratedly darkened. However, the most interesting aspect was the work on colours. Factory errors were not dramatic but slightly noticeable – skin tones were sometimes too warm, and grey didn’t always have the shade we expected. After calibration, the error values dropped to around 2, and in many cases even below 1. This is certainly a level lower than the threshold of human perception. In other words, after correction, the colours finally "clicked" into place. Looking at the screen, we had the impression that the television had begun to speak with its full voice. Like an instrument that has finally been well tuned.

The television is quite capable of scaling lower quality content. Our test patterns were well reproduced, and although there was minimal banding on fine, delicate shapes (for example, thin branches), it still looked satisfactory. Additionally, Sharp GP7 offers a "10-bit colour reproduction" feature to smooth tonal transitions in poor quality materials. It is useful, but at the cost of some details, so we recommend turning it on only when we are truly watching something subpar.

The issue of the aforementioned colour banding can largely be mitigated thanks to the 'distortion reduction' feature, which is an algorithm for smoothing tonal transitions in Philips. It performs best at a low setting – effectively eliminating unwanted colour bands while not introducing strange artefacts or losing image detail. This is one of those features that is truly worth leaving switched on.

The situation is somewhat worse regarding upscaling. The image from a lower resolution can be too soft, while in some areas, characteristic 'jaggies' appear. The impression is that the algorithm is trying to reconcile two conflicting directions – smoothing and sharpening – and ultimately fails to find a happy medium. As a consolation, it can be added that the television has no issues with overscan, meaning it does not cut off the edges of the image, which sometimes occurs in other competing models.

With a 60 Hz panel and an average response time, it’s hard to expect miraculous smoothness. In dynamic tests, such as the one with the “little green man”, it’s evident that the picture can stutter and occasionally lose sharpness. For watching films and series, this is acceptable, especially as you can make use of a motion smoother with three levels of adjustment. However, if we are keen on ultra-smooth sports broadcasts or super-responsive gaming, we may feel unsatisfied.

The issue of the matrix in the Philips OLED770 is not entirely straightforward. The manufacturer claims a 120 Hz panel, but our measurements showed that the screen can accept a 4K signal even at 144 Hz. That sounds like great news – after all, who wouldn't want an additional mode for PC gamers at this price? However, the reality turned out to be more complex. With 120 Hz content, the television behaves like most OLEDs – the image is absolutely clear, with no trace of ghosting or blurring, making it perfect for both dynamic games and sports broadcasts. The problem only arises at 144 Hz. Unlike models with official support for this frequency, here you can observe the phenomenon known as frame skipping. This means that the television cannot display all the frames – some are skipped, causing motion to lose smoothness, and double contours appear on the screen. The effect resembles the operation of the BFI function, which Philips does not offer in this model anyway.

Let's not kid ourselves – GP7 Sharp is not a television for the most demanding console gamers. Yes, it has ALLM which automatically switches the TV to low latency mode, but it lacks VRR or G-Sync. We also won't find any advanced menu to assist in selecting settings during gameplay. Dolby Vision in games? It's there, but with such a high input lag that it's hard to speak of comfort. If we play occasionally and are not aiming for the highest standards, it can be managed, but fans of technological innovations will be disappointed.

If someone is looking for a television for gaming, the Philips OLED770 is a contender that is hard to ignore. The mere fact that we have an OLED here provides an excellent starting point – perfect black and infinite contrast make evening sessions in atmospheric games look as if they were lifted straight from the cinema. On top of that, there is the Ambilight system, which consists of LEDs on the back of the television that extend the image onto the wall behind the screen. The effect is such that even playing FIFA can look like a small spectacle, and in horror games the atmosphere becomes truly thick. From a technical standpoint, it's also quite decent. The Philips OLED770 supports variable refresh rate (VRR) up to 120 Hz, has an automatic mode for gamers (ALLM), and if someone is using an Xbox Series X, they can also count on Dolby Vision support in games. One must only know that in this mode the input lag is slightly higher than standard, though still at an acceptable level. As a bonus, we get the “Game Bar” panel, which is a special tool bar for gamers. It isn’t the most conveniently designed solution, but it allows you to check key parameters without leaving the game. Overall, this results in a television that, on one hand, has all the essential gaming features, and on the other, can add something unique – Ambilight. And it is this mix of technology and visual effect that makes the OLED770 one of the better screens for gaming at home.