LG 86SJ9570 Review: A Giant TV with Excellent Performance

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By John Samuel


My take on LG 86SJ9570


The LG 86SJ9570 is a huge television that offers exceptional picture quality and sufficient ports. Also, this television comes with a pair of speakers that deliver excellent sound quality. Besides, the TV is good for gaming thanks to its low input lag. However, this LG television has a poor contrast ratio.



  • Stunning design
  • Good OS
  • Excellent display
  • Ideal for gaming
  • Magic remote control


  • Poor contrast ratio
  • Average brightness

LG 86SJ9570: At First Glance

LG is undoubtfully one of the most popular television brands in the world. The brand’s popularity is a result of its consistency in delivering great-performing TVs over the years.

Hence, to continue with its habit of delivering great televisions, LG released the 86SJ9570 in 2017. The LG 86SJ9570 is a smart television that offers an 86-inch display with 4K resolution.

Furthermore, this television comes with so many reasonable features which include an impressive picture quality and a brilliant operating system. However, I believe there isn’t a television in the market that doesn’t feature one or two drawbacks.

Hence, to find out more about this television and its drawbacks, I advise you continue reading this article.

LG 86SJ9570: Design, Dimension, and Weight

The LG 86SJ9570 comes with a stunning design. To give more details, the television’s front side features thin bezels that surround the display.

Furthermore, these bezels are made of high-quality plastic and have a black matte finish. Moreover, despite how thin these bezels are, the television manages to feature an “LG” logo at the center of the bottom bezel.

This logo further beautifies the television’s front side and also serves for easy brand identification. Having said all that, let us now move to discuss the back of the TV.

To begin with, the LG 86SJ9570 has a brushed plain back panel. Unlike the bezels, this back panel is made of metal and features a matte-black texture.

In addition to that, you’ll find holes on this back panel that can accommodate a 600 x 400 VESA mount for mounting the TV on the wall. Moreover, because this television is super-slim, it shouldn’t bulge out when wall-mounted.

Moving on, the LG 86SJ9570 comes with a silver metallic stand positioned at the center with a curved footprint. Furthermore, due to the metallic build of this stand, it should offer solid support for the television.

Impressively, there are holes at the back of this television’s stand that serves as a cable management system.

Having said all that, let us now discuss the dimension and weight of the television. The LG 86SJ9570 measures 1938 x 68.5 x 1115 mm (W x D x H) and has a weight of 50303.3 g.

Compared to the Samsung UN85TU8000FXZA, this LG television is significantly heavier. To be more specific, the Samsung UN85TU8000FXZA weighs 31978.2 g and measures 1894.8 x 63.5 x 1084.5 mm (W x D x H).

In summary, the LG 86SJ9570 comes with an attractive design that could grab one’s attention at first sight. Therefore, the TV deserves a rating of nine out of ten in this design features review section.

LG 86SJ9570: Display Features and Picture Quality

As hinted earlier, the LG 86SJ9570 comes with an 86-inch LED display. Furthermore, this display features a 4K UHD (3840 x 2160) resolution and it is made with an IPS panel.

Firstly, thanks to its 4K resolution, the display should be able to deliver vivid, realistic and detailed picture quality. Lastly, due to its IPS panel, the display should be able to deliver wide viewing angles.

Hence, picture quality and color accuracy will remain intact without reducing when viewing the LG 86SJ9570 from extreme angles or off-center. Sadly, IPS panel displays are known to have one major flaw, which is poor contrast ratio.

Thus, the LG 86SJ9570’s display has a disappointing contrast ratio of 1547:1. As a result, the black level of the display will be very poor, meaning it won’t be able to produce deep blacks.

Hence, blacks on the display may look grayish. Therefore, you won’t enjoy watching movies that have plenty of dark and shadowy scenes on the television.

Also, the LG 86SJ9570 won’t be suitable for usage in a darkroom setting. In case you are wondering, contrast ratio refers to the difference between the brightest white and the deepest black a display can render.

To make up for its poor contrast ratio, the LG 86SJ9570’s display supports local dimming. Local dimming is a picture technique that LCD/LED displays use to enhance their contrast ratio and black level by dimming backlights layers.

Hence, with this feature, blacks on the display will appear deeper and darker than they would without local dimming. Thereby, improving the picture quality and dark room performance of the LG 86SJ9570.

To further improve its overall picture quality, the LG 86SJ9570’s display supports HDR (High dynamic range). Specifically, the display supports various HDR formats such as HLG, HDR 10, and Dolby Vision.

Briefly, HDR is a picture technology that enhances a display’s color accuracy and brightness when viewing HDR-compatible content. Thus, when viewing these kinds of content on the LG 86SJ9570, the display’s picture quality will be so realistic and lifelike.

Just so you know, most HDR-supported contents are found on streaming services like Amazon Prime Video, Netflix, and Hulu. Disappointingly, despite supporting HDR, the LG 86SJ9570’s display offers a not-so-good peak brightness.

To be more precise, the display has a peak brightness of 360 nits. Thus, the LG 86SJ9570 might not be adequate for viewing movies in a sunny or well-lit environment.

Nevertheless, this display’s peak brightness should be enough for you to enjoy viewing the television in a moderately-lit room. With all that being said, let us now talk about the display’s input lag.

To start with, the LG 86SJ9570’s display has an input lag of 14.6 ms (milliseconds). Briefly, input lag refers to the time that a display takes to respond to signal input from an external source like a wireless XBOX One gamepad.

Furthermore, for an ideal gaming experience, a display must have an input lag of 15 milliseconds or lower. Thus, with a display input lag of 14.6 milliseconds, the LG 86SJ9570 is very ideal for playing video games.

Apart from being ideal for gaming, this television is also superb for viewing fast-motion content. This is due to its display’s fast response time of 10.8 milliseconds.

Thus, viewers will enjoy watching sports, action movies, and other fast-motion content on the TV without noticeable blur trails. In case you are wondering, response time is the duration it takes a display to change from one particular color to another.

In summary, the LG 86SJ9570 offers an excellent display performance that both gamers and movie lovers would love. However, the TV’s display is bright enough and it offers a poor contrast ratio.

Hence, I will be rating the LG 86SJ9570 an eight out of ten in this display review section.

LG 86SJ9570: Sound Features

As an 86-inch television, one would expect the LG 86SJ9570 to deliver a sound system that offers a fairly loud sound. Thankfully, this television doesn’t disappoint as it features a pair of 5.2 CH 40-watts speakers that are very loud.

In addition to that, the speakers produce an impressive sound quality. To make things better, the television comes with a pair of 15-watts subwoofers.

As a result, the LG 86SJ9570 will be able to deliver adequate bass production for enjoying thunderous and rumbling sounds. Hence, this LG television is ideal for watching bass-heavy movies or listening to bass-heavy songs.

That’s not all, to further improve its sound production, the LG 86SJ9570 features a sound technology called DTS-HD Master Audio. This sound technology boosts the surround sound production of the television’s speakers.

Thereby, allowing them to generate a cinematic and theatre-like sound quality. Besides, DTS-HD also improves the loudness of the television’s speakers and allows them to produce clear and audible dialogue.

For clarity, dialogue refers to the conversation between multiple characters in a movie or TV show. To top up its impressive sound performance and features, the LG 86SJ9570 offers an amazing distortion performance.

This was proven via the THD (Total Harmonic Distortion) test result of the television. To be more specific, the THD test is a sound test that evaluates the level of distortion that a sound system or speaker can generate.

Furthermore, a score of 1% or below on this test indicates that the speaker doesn’t produce much distortion. However, if the score is above 1%, the distortion that the speaker will produce might be unbearable.

Fortunately, the LG 86SJ9570 delivered a score of 0.8% on the THD test. Consequently, at a moderate or maximum volume level, the distortion that the television’s speakers produce will be very low.

In case you’re wondering, distortion in this context refers to the recreation of original sound frequencies, leading to the production of less pleasant sound quality.

In conclusion, there is absolutely nothing to hate about the LG 86SJ9570’s sound production and performance. Hence, I will rate the LG 86SJ9570 a nine out of ten in this sound review section.

LG 86SJ9570: Ports and Connectivity Features

Just like most LG TVs, the LG 86SJ9570 comes with a good number of ports. To give more details, all the ports are grouped in two sections on the television’s back.

Precisely, some of the ports face the left, while others are directly on the back of the TV. Starting with the left-facing ports, you’ll find three HDMI ports including one that is compatible with ARC (Audio Return Channel).

Consequently, with the ARC-compatible HDMI port, users should be able to connect a soundbar to the LG 86SJ9570. Asides from the HDMI ports, you’ll also find a USB port among the left-facing ports.

For the ports directly on the TV’s back, you’ll find another HDMI port and two more USB ports. Also, there is an RF connector, optical analog audio out, and composite video input.

That’s not all, you will also find an Ethernet port directly on the back of the television. Meanwhile, for wireless connectivity, the LG 86SJ9570 features a built-in 802.11ac WiFi and Bluetooth.

Having discussed the television’s ports and wireless connectivity, let us now consider the included remote control. To start with, the LG 86SJ9570 comes with LG’s exclusive magic remote control.

In terms of design, this remote is made of plastic and features curved edges with a glossy-black finish. Additionally, the remote control offers quite a number of rubber buttons.

Some of these buttons include a full number pad, a volume rocker, and a channel rocker. In addition to that, the remote features a round-shaped navigation button with a scroll wheel in the center.

Aside from the navigation button, you’ll also find two dedicated buttons that aid for quick access to Netflix and Amazon Prime Video. That’s not all, in case you find it stressful pressing buttons, the LG 86SJ9570’s magic remote features a built-in microphone for voice input.

Basically, with the remote’s built-in mic, you’ll be able to control the television with your voice via Amazon Alexa or Google Assistant. Besides, at the bottom part of the remote, there is a white “LG” logo for brand identification.

In summary, the LG 86SJ9570 features an adequate amount of ports and a voice-supported remote control. Thus, this television deserves nothing less than a nine out of ten rating in this ports and connectivity review section.

LG 86SJ9570: Smart Features

As with most LG televisions, the LG 86SJ9570 runs on LG’s very own webOS 3.5. This operating system is best known for its user-friendly and lag-free interface that allows for seamless navigation.

Besides its smooth interface, the OS offers a wide range of pre-loaded popular streaming services and applications. A few of these streaming services and apps include Netflix, Amazon Prime Video, Hulu, Disney+, Spotify, and YouTube.

Moreover, in situations when you feel unsatisfied with the pre-loaded apps, you can simply download more apps from LG’s Content Store. However, you won’t find as many streaming services and apps on this store compared to the Google Play Store or Samsung store.

On the plus side, with the help of the LG Smart Share app, you will be able to share content from your smart devices to the LG 86SJ9570. As a matter of fact, this application is available and free for download on the Google Play Store and App Store.

All things considered, I will be rating the LG 86SJ9570 an eight out of ten in this smart features review section.

Frequently Asked Questions

1. Is the LG 86SJ9570 a smart TV?

Yes, it is. The LG 86SJ9570 is a smart television that runs on LG’s exclusive operating system called the webOS 3.5.

2. When was the LG 86SJ9570 released?

The LG 86SJ9570 was released in 2017.

3. Does the LG 86SJ9570 have Bluetooth?

Yes, the LG 86SJ9570 features Bluetooth for wireless connectivity.

4. How many HDMI ports does the LG 86SJ9570 have?

In total, the LG 86SJ9570 features four HDMI ports.

5. Does the LG 86SJ9570 come with a magic remote control?

Yes, the LG 86SJ9570 comes with a magic remote control.


The LG 86SJ9570 is an 86-inch smart television that not only offers excellent performance for movies lovers, but also for music addicts and gamers. To give more details, this television provides a great picture quality that will keep you glued to your screen for hours.

In addition to that, the television offers an exceptional sound performance for an ideal viewing and audio experience. Furthermore, its display has a low input lag, which makes the television suitable for gamers.

However, the major drawbacks that I know might change the minds of potential buyers are the television’s poor contrast ratio and average brightness. Nevertheless, apart from these few drawbacks, this LG television is flawless.

Hence, if you need a large screen television with excellent performance, I advise you to consider the LG 86SJ9570 without hesitation.

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About the Author

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John Samuel

John Samuel is a Technical Writer for www.itechguides.com. He has a B.Sc in Sociology. John loves reading books, sports, and gadgets. In www.itechguides.com, he writes gadget buying guides, apps and software reviews, movies, and video games reviews.

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