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Comparing 4K TV LG 77G4PSA and Sony K-75XR90: Which is your ‘true love’?

If you are wondering between the two most high-end 4K TV models today, LG 77G4PSA and Sony K-75XR90, the comparison information below will help you realize which is the ‘true love’ for you.

1. Compare LG 77G4PSA and Sony K-75XR90: Design and finishing quality

Both of these 4K TV models are in the highest-end segment of the market, so in terms of design, there is definitely nothing to criticize, however, because each brand has its own unique style, it will create problems. significant difference.

LG’s 77-inch TV has a minimalist and modern design, impressing with its ultra-thin screen bezel, providing a more immersive viewing experience. The center stand is sturdy, height-adjustable, however, it will wobble a bit compared to Sony’s stand, making it ‘imperfect’ and possibly causing some discomfort for the user . However, the height adjustment feature is a plus point, providing more flexibility and convenience in arranging the viewing space.

The appearance design of LG 77G4PSA and Sony K-75XR90 are both very beautiful, the choice depends on each person's senses.
The appearance design of LG 77G4PSA and Sony K-75XR90 are both very beautiful, the choice depends on each person’s senses (Photo: Websosanh).

In contrast, the Sony 75-inch TV uses a double stand, creating absolute sturdiness and stability. This stand can be adjusted in a variety of positions, both horizontally and vertically, providing maximum flexibility in placement. Although the screen border is not as thin as the LG 77G4PSA 4K TV, the Sony K-75XR90 still creates a luxurious and high-end feeling thanks to its materials and sophisticated design.

In terms of build quality, both the LG 4K 77G4PSA TV and the Sony 4K K-75XR90 TV are built with high quality, using premium materials. The difference in feel to the touch and durability may not be too obvious to ordinary users, showing the meticulousness in the manufacturing process of the two companies.

However, one thing to note is the cable management aspect. The Sony 75-inch K-75XR90 TV has a plastic cover to cover the cables at the back, helping to hide messy wires for a neat and professional look. LG 77G4PSA 4K OLED TV allows wires to be wired through the stand or through the clips on the back if using a wall mount. However, threading the wire around the 77G4PSA’s stand can be a bit more difficult than Sony’s solution. In general, in this aspect, both solutions have their own advantages and disadvantages and depend on the user’s preferences.

2. Compare LG 77G4PSA and Sony K-75XR90: OLED vs Mini-LED!

This is the most important part, also the factor that makes a clear difference between these two high-end TV models. While the LG 77G4PSA 4K OLED TV uses OLED technology, the Sony K-75XR90 uses Mini-LED technology with Local Dimming.

2.1. Contrast and black

With OLED technology, the LG 77 inch 77G4PSA evo OLED smart TV delivers infinite contrast and absolute black. Each pixel lights up on its own and can be turned off completely, creating deep, detailed and realistic dark areas. It provides a great movie watching and gaming experience, especially in dark scenes.

LG 77G4PSA 4K TV shows absolute black, infinite contrast
LG 77G4PSA 4K TV shows absolute black, infinite contrast (Photo: LG).

The Sony 4K 75-inch Google Mini LED TV K-75XR90 with Mini-LED and Local Dimming technology also has very high contrast, can even fool the viewer’s eyes into thinking it is absolutely black. But essentially, it still cannot achieve infinite contrast like OLED. Dark areas can still show some light, albeit very faintly. However, the significant improvement of Mini-LED and Local Dimming technology on the K-75XR90 has significantly narrowed the contrast gap compared to OLED.

2.2. Brightness, color range and viewing angle

Although lacking in contrast, in terms of brightness, the Sony K-75XR90 TV has an advantage, and the difference is quite clear.

In real-life content, the LG 77G4PSA reaches more than 500 nits, bright enough for any room, but in spaces with a lot of strong light, it also has difficulty displaying. Meanwhile, the Sony K-75XR90 reaches about 1000 nits, can display clearly and is more suitable for spacious spaces with many light sources, such as high-end penthouses.

Sony K-75XR90 has twice the brightness of LG 77G4PSA in everyday content
Sony K-75XR90 has twice the brightness of LG 77G4PSA in everyday content (Photo: Sony).

In terms of color, both of these TVs have a very wide color gamut. If the 77G4PSA covers almost the entire DCI-P3 color space, the K-77XR90 is only slightly worse, but Sony’s representative covers most of the Rec 2020 color space. So, basically the colors of these two televisions is also in the form of ‘one nine, one ten’. However, as mentioned above, because of the higher brightness, the Sony K-75XR90 will display a bit more vividly.

In terms of viewing angle, OLED technology on the LG 77G4PSA provides a wider viewing angle and the image still maintains good quality. As for the K-75XR90, the viewing angle is only average.

2.3. Image processing capabilities

Finally, both of these 4K TVs have very good image quality, using each company’s top processor chip. However, in this aspect, overall Sony – considered to have the best image processing capabilities in the industry – still stands out more. However, LG does not let itself be left out too far, it is also very close to Sony’s performance.

The image processing performance of the Sony K-75XR90 TV is outstanding
The image processing performance of the Sony K-75XR90 TV is outstanding (Photo: Sony).

On these two TV models, the Sony K-75XR90 appears to be more powerful in handling low-resolution content, has very high sharpness and can improve even the smallest details. LG 77G4PSA also does this job very well, but in small details it still cannot do it as perfectly as Sony.

3. Compare LG 77G4PSA and Sony K-75XR90: Features and performance!

Both TV models are equipped with modern features. However, there are also some differences to keep in mind to help users choose the right one for their needs.

3.1. Connection and audio ports

Both the LG 77G4PSA and the Sony K-75XR90 have 4 HDMI ports, however all 4 ports of the 77G4PSA are HDMI 2.1 and support up to 4K 144Hz. Meanwhile, the K-75XR90 only has 2 HDMI 2.1 ports that support 4K 120Hz in total, and one of those 2 ports is also eARC, which means that if you connect the TV to a soundbar or external audio device, it will only There is only 1 HDMI 2.1 port left. Therefore, the connection ability of the Sony 75 inch TV will be somewhat more limited than the LG 77 inch TV.

In terms of sound, both have modern systems with powerful capacity, supporting high-resolution audio formats and Dolby Atmos, so they are quite similar in output quality. Furthermore, the sound distance is not really that important if the user combines the TV with a soundbar or external speakers.

3.2. Operating system and user interface

LG 4K OLED TV uses WebOS operating system while Sony 4K TV uses Google TV operating system. Both operating systems on these two high-end TVs provide a very smooth and fast experience, and the application store is also rich. However, in terms of customization and diversity, Google TV will have a slight advantage. However, this also completely depends on each person’s senses.

3.3. Gaming performance

For most gamers, both products are good enough, but this is the aspect where OLED TVs show complete dominance. You’ll notice a difference between the 5.4ms of the 77G4PSA and the 9.8ms of the K-75XR90 when gaming at 4K 120Hz resolution. The LG 77G4PSA can even play 4K 144Hz games with an input latency of only 6ms.

LG 77G4PSA is the top choice of gamers
LG 77G4PSA is the top choice of gamers (Photo: LG).

In short, if you care about input lag, choose the LG 77G4PSA. If gaming is just a secondary factor, then both of these TV models are great.

4. Compare the price of LG 77G4PSA TV and Sony K-75XR90 TV

Selling price is also a factor that needs to be considered. Both of these 4K TV models are in the high-end segment, so their prices are not cheap, the LG 77G4PSA has a reference price of about 99 million VND, and the Sony K-75XR90 is about 71 million VND.

In terms of overall image quality, features and performance, the value that the LG 77G4PSA TV brings seems to be a bit higher than the Sony K-75XR90, so the higher price is also obvious. However, the difference of 28 million VND is also really an issue that users need to consider carefully.

5. Should I buy LG 77G4PSA TV or Sony K-75XR90 TV?

In reality, there is no better or best TV model, all choices depend on each person’s needs and budget.

If your top priority is perfect contrast, want to experience absolute black and have the ultimate general experience (playing games, watching movies), then the LG 77 inch 77G4PSA evo OLED smart TV is the one for you. ideal choice.

However, if you need a TV with high brightness, bright colors, a slightly worse overall experience, and a cheaper price, then the Google Sony 4K 75-inch Mini LED TV K-75XR90 is worth considering. .

Both of these TV models are high-end products with excellent image quality, only differing in some small details. Therefore, carefully consider the above factors to make the choice that is best for you.

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