A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

by on January 19, 2020
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Stephan Jukic – January 19, 2020


The LG UM8070 occupies a rather interesting space in the gamut of new LG 4K LCD TVs; unlike almost all of them, it comes with a VA display panel of the kind that’s much more typical of Samsung, Sony, TCL, Vizio and others. Most of LG’s LCD editions instead come with IPS screens. The difference between the two is that IPS screens tend to have weaker contrast and black levels while delivering much better viewing angles, while VA displays tend to render far better contrast and black levels with a tradeoff on display quality when viewed from off center.

In any case, the UM8070, with VA display in all models except its 86 inch edition (which is IPS), is a good 4K UHD HDR TV. It’s not great, but it’s certainly good in several ways. The most important of them being its strong gaming performance, good motion handling and decent overall picture rendering.

Also Read:
Our detailed review of LG’s ultra-affordable UM7300 IPS 4K HDR TV
Our in-depth review of TCL’s extremely affordable and very decent 4 Series 4K HDR TVs
Our In-depth review of TCL’s new 6-Series 4K HDR TV, The Most Affordable Aaesome Premium TV of 2019


• Great gaming performance
• Very decent color delivery
• Strong motion handling
• Great smart TV platform


• HDR and SDR brightness could be a bit better
• No full HDR color specs
• Native Audio is typically weak

Bottom Line

The UM8070 is a very good LG LCD TV for its price and though we don’t like the fact that it lacks wide color gamut and a couple other important specs that we expected it to have, the general performance of this 4K television is strong enough to keep it fairly recommendable. Other LCD 4K HDR TVs with VA display from other major brands do however give it some very stiff competition on quality for price.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

Check out LG’s highly unique UM8070 4K HDR LCD TV with VA display on sale at Amazon

4.7 – 4 Reviews
Also Read:
Our comprehensive review of the best IPS TV we’ve ever reviewed, LG’s powerful new SM9000 4K HDR edition
Also Read:
Our Comprehensive review of Samsung’s most affordable 2019 QLED TV, the Q60R
Our detailed hands-on review of Samsung’s incredible new 8K HDR TV, the Q900
Our comprehensive review of Samsung’s excellent premium Q80R QLED 4K HDR TV

What We Liked about the UM8070

• Great gaming performance
• Very decent color delivery
• Strong motion handling
• Great smart TV platform

Gaming connectivity & performance

All of LG’s Mid-range and budget LCD TVs that we’ve reviewed for 2019 and early 2020 so far have proven themselves to be excellent at gaming connectivity, IPS display or not. The UM8070 is no exception to this and while it doesn’t quite offer the same input lag as a couple other LG LCD TVs like the SM9000, the difference is miniscule. This TV is also helped very nicely by the fact that it comes with a native 120Hz display for even broader gaming frame rates, and an excellent pixel response time for low motion blur.

Very strong color performance

For a 4K HDR TV that does not come with full HDR color due to a lack of wide color gamut delivery, the UM8070 is nonetheless a superbly good performer at delivering generally good color rendering in several ways. It does render 10-bit color for HDR content (the second major aspect of HDR color along with WCG) and it does so really smoothly. Additionally, the UM8070 manages excellent color accuracy both right out of the box and after a bit of calibration of picture settings that refines color quality even further to a great level. Overall, this TV’s color performance is strong.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

Great motion handling

The overall motion handling for all content sources in the LG UM8070 is really good. This TV not only manages wonderful input lag as we mentioned above, it also handles motion interpolation almost perfectly on its native 120Hz display. The UM8070’s judder control is great for most content sources too. This TV lacks some fancier technologies for motion handling, such as black frame insertion or variable refresh rate synchronization (FreeSync or G-Sync) but because of what it does come with and how well it performs at other specs, the loss is small.

Sturdy build

The physical build of the LG UM8070 isn’t fancy or deeply elegant, but it is highly functional and very sturdy. The connectivity ports are very easy to access along the back of the TV and the UM8070 comes with a nice, smooth, matter rear finish that’s made of metal instead of plastic. Its supporting legs, though more widely spaced than we like at least keep the TV upright without easy wobble. Along the edges of the screen the bezeling is extremely narrow, which definitely helps the UM8070’s aesthetic value and display quality.

strong black levels and contrast

On a final note, we need to mention the contrast and black performance of the UM8070. They’re both great and a nice change from what’s usually the case with LG’s LCD TVs and their more typical IPS displays. For people who want wide viewing angles on a budget, IPS is great but VA display definitely creates better overall picture performance since deep blacks and strong contrast are so important to perceived image quality. In these regards, two of the three UM8070 editions are a great change from the usual with LG LCD TV technology. This section DOES NOT apply to the 86 inch LG UM8070, which comes with an IPS display.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

Check out LG’s highly unique UM8070 4K HDR LCD TV with VA display on sale at Amazon

4.7 – 4 Reviews
Also Read:
Our comprehensive review of the best IPS TV we’ve ever reviewed, LG’s powerful new SM9000 4K HDR edition
Our In-depth review of Samsung’s ultra-bright flagship 2018 Q8FN 4K HDR TV

What We Didn’t Like

The biggest flaws in the LG UM8070 are the things it rather surprisingly doesn’t come with given its other specs and general quality. These are what nearly make this particular ultra HD TV less enticing and definitely cut its overall competitive quality down a notch or two compared to its closest rivals from other major brands. Unlike other LG 4K UHD TVs

Peak brightness issues

The first notable thing about the UM8070 that disappoints is its overall display brightness in both HDR and SDR modes. In either case, this TV just doesn’t get nearly as luminous as we were expecting. Its HDR peak brightness is only okay and its SDR brightness by any measurement is just barely decent since it never even goes above 250 nits. The weaknesses in both mess with overall HDR quality in a big way.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

A lack of full HDR color

The color performance of the UM8070is good, as we already described above in the section on what we liked but what disappointed us is the simple fact that this 4K HDR TV doesn’t provide full HDR color, because it lacks wide color gamut. For a large LG HDR TV that supports Dolby Vision HDR and includes the benefit of a 120Hz refresh rate, wide color gamut wouldn’t have been too much extra to ask.

Weak native audio

The native audio of the UM8070 is unsurprisingly weak. It’s not bad for watching light TV or the news, but if you want some serious bass power and sound that doesn’t distort at higher volumes, you’ll certainly need to hook this giant television up to an external speaker system.

Lack of size options

On a final note, we’re not quite sure why LG decided to release the UM8070 in only three different sizes that all happen to be huge. This TV does not come in any smaller editions of 55 inches or less and it isn’t even available in a reasonably large 65 inch version. This is a shame and makes the UM8070 limited in its flexibility for LG 4K TV fans who might otherwise like the rest of its specs.

Also Read:
Our in-depth review of Sony’s X950G 4K UHD HDR LCD TV
Our in-depth review of Samsung’s Q7F QLED 4K HDR TV

Value for Price & Bottom Line

Overall, if you love LG 4K TVs but don’t want to spend on an OLED edition and also really want a giant 4K HDR LCD TV at a fairly decent price, then the UM8070isn’t a bad choice. However, better specs are available from rival Samsung, Sony and TCL models and with much broader display size options to boot.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

Check out LG’s highly unique UM8070 4K HDR LCD TV with VA display on sale at Amazon

4.7 – 4 Reviews
Sony’s Stunningly good but reasonably priced A8G OLED 4K HDR TV
Our in-depth review of LG’s C9 4K UHD HDR OLED TV
Our in-depth review of LG’s stunningly good & surprisingly affordable B9 4K OLED HDR TV
Our in-depth review of LG’s Fantastic premium E9 OLED 4K HDR TV

Key LG UM8070 Specs

• Screen sizes: 75 inch 75UM8070, 82 inch 82UM8070, 86 inch 86UM8070 (TV being reviewed is 75 inches)
• Smart TV: WebOS 4.5 2019 Edition
• HEVC (H.265) Included: Yes
• VP9 Included. Yes
• HD to UHD to 4K upscaling: Yes
• HDCP 2.2 Compliance: Yes
• HDR Support: Yes, HDR10, Dolby Vision, Hybrid Log Gamma
• Refresh Rate: 120Hz refresh rate
• Screen Lighting: VA LCD Display with edge-lit backlighting, no local dimming
• Resolution: 3840 × 2160 pixels 4K UHD
• Wireless Connectivity: Yes, includes both built-in WiFi and Ethernet port
• Remotes: LG smart Remote with voice control
• Connectivity: 3 HDMI ports (all of them 2.0a and with HDCP 2.2, 2 USB ports, 1 Ethernet port, 1 Digital Audio Out
• Contrast Ratio: 4,122:1 (native, real maximum contrast)
• Absolute Maximum Peak Brightness: 308 nits (cd/m2)
• 3D Technology: N/A

Display Performance Metrics

The following sections and subsections are where we analyze the absolute most essential, important and useful measurements of 4K HDR TV quality as they apply to the LG UM8070 we’re reviewing here. These are the specs that really decide just how much performance quality home theater handling this TV can actually deliver. They cover the key metrics of brightness, color, motion handling, and connectivity performance for using this particular UHD TV. Most importantly, they are what really matters most for movies, TV shows, broadcast content, gaming and even hookup of the TV as a PC monitor if you prefer. Below we go into details that ignore all the marketing fluff and overhyped claims that manufacturers love to apply to all their 4K TVs, good or bad.

We’ve measured the specs below based on our analysis of the unit we’re reviewing, but their accuracy is exact enough to reflect what they should be like for any normally functioning editions of the LG UM8070. Only slight variations for some of the specs in the sections below might be the case from unit to unit and with editions of different sizes. If your TV ends up performing very differently, it’s either miscalibrated or possibly even defective.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)
NOTE: The following apply equally to all editions of the LG UM8070 except for the section on black levels and contrast right below, which varies a lot between the two VA editions of this TV and the 86 inch IPS UM8070 model.

Black Level, uniformity, Local Dimming and Contrast:

As we’ve explained above, the LG UM8070 comes in two versions: the 75 and 82 inch models are both TVs with VA (vertical alignment) screens, while the giant 86 inch edition is an IPS (in-plane switching) model.

For the VA editions, black level is deep and rich, well within strong HDR contrast requirements, and contrast as a result is also high, at over 4,102:1, which is not the best we’ve seen in a VA 4K TV but still superbly high. Furthermore, black uniformity in this UHD HDR TV is outstanding, with a truly surprising degree of uniformity and virtually no light bleed. However, since the UM8070 has no local dimming technology, halo can still appear around bright objects contrasted against the TV’s deep black levels in high contrast scenes.

As for the IPS model of the UM8070, we did not review it so we can’t speak for exact specs. However, if typical LG IPS TV metrics we have seen in other 2019/2020 televisions are anything to go by, you can expect weak black uniformity and an average contrast ratio of about 1000+:1.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

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The overall brightness in both HDR and SD modes in the UM8070 is not great at all. In SDR mode it’s relatively decent but when this TV is set to HDR, it pretty much flops with a maximum luminosity that never exceeds 310 nits. We’ve seen worse in other ultra HD TVs but definitely not models that cost the same as the UM8070 or come with its otherwise decent to great performance specs. For qualities like these, LG’s own SM9000 IPS TV gets much, much brighter even though it costs more. The modest brightness of the 86 inch IPS UM8070 is also further hampered by its weak black levels and contrast, which make its meagre bright highlights stand out less than they could.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

LG UM8070 SDR Brightness

  • Overall SDR peak brightness for normal content: 237 nits
  • Peak 2% display area display SDR brightness: 242 nits
  • Peak 10% display area SDR brightness: 245 nits
  • Peak 100% display area SDR brightness: 243 nits
  • Sustained 10% SDR brightness: 247 nits
  • Sustained 100% SDR brightness: 244 nits

LG UM8070 TV HDR Brightness

  • Overall HDR peak brightness for normal content: 275 nits
  • Peak 2% display area display HDR brightness: 300 nits
  • Peak 10% display area HDR brightness: 308 nits
  • Peak 100% display area HDR brightness: 293 nits
  • Sustained 10% HDR brightness: 306 nits
  • Sustained 100% HDR brightness: 301 nits

Color Delivery:

Unfortunately the LG UM8070 doesn’t come with full HDR color because it lacks wide color gamut coverage. Fortunately however, it does come with 10-bit color rendering for 1.07 billion RGB gradations and it delivers these smoothly. More importantly still, its overall color accuracy across the board is good even right out of the box. After a bit of calibration in the picture settings, this color accuracy becomes superbly good. On the other hand, this TVs rendering of vibrant colors during playback of bright scenes and accurate colors during shadowy scenes is definitely on the weaker side.

In a very general sense, the important thing to bear in mind for this TV’s color performance is that the UM8070 will output strong and rich colors that look realistic when it’s used to play both ordinary TV content and vibrant HDR video sources. For users who’ve never before owned an HDR 4K TV, the perceived picture quality will look especially excellent compared to that of a typical HDTV.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

Here are the UM8070’s key color delivery specs:

  • Pre-calibration White Balance delta-E: 3.08
  • Pre-calibration Color delta-E: 2.02
  • Pre-calibration Gamma: 2.15
  • Post-calibration White Balance delta-E: 0.15
  • Post-calibration Color delta-E: 1.19
  • Post-calibration Gamma: 2.14
  • Wide Color Gamut: 84.8%

Motion Handling & Upscaling:

The overall motion handling of the UM8070 4K HDR TV is greally good. It’s not as great as what we’ve seen in many top-tier LCD TVs but it works wonderfully for almost all content types. For starters this model does a very decent job at motion blur control while also rendering motion interpolation decently up to its maximum premium native display refresh rate of 120Hz. For starters. The main reason for this TV’s great motion blur control is its pixel response time, which is superbly good at 3.8 milliseconds. This measures how quickly pixels change color as content shifts across the screen and the lower that number, the less blur, which is good. In practical viewing terms, this means low motion blur for movies, games, TV viewing or sportscasts from any native or HDMI source.

Additionally, the UM8070 performs really well at judder control with 24p content, and can handle judder-free content delivery from disc media, broadcast, streaming and HDMI sources without a problem. It also offers this for movies from external 60Hz devices like cable boxes.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

We should also note that the UM8070 doesn’t have any variable refresh rate technology like FreeSync or G-Sync for smoother gaming. In general though, this particular 4K TV delivers very good motion handling. It does come with more exotic motion interpolation technologies like black frame insertion. On a more negative end of things, there is no flicker free option in the UM8070, and this means slight flicker even with full backlight power.

When it comes to content resolution upscaling of non-4K video sources, like virtually all modern 4K UHD TVs, the UM8070 offers excellent sharpening of any well-mastered content at all major sub-4K resolutions. In other words, the vast majority of content available today that isn’t 4K will look great usually. More specifically, 1080p video sources look wonderfully sharp on this TV and even 720p and 480p video is rendered sharply. This is of course very important simply because few movies or shows available in 2020 are in native 4K.

Input Performance for Gaming and PC:

LG’s LCD 4K TVs usually offer great gaming connectivity and low input lag. The UM8070 is no exception. This is a superbly good 4K UHD TV for gaming with consoles or via PC connectivity (using the TV as a monitor). Its input lag in game mode for console gaming at different resolutions, frame rates, HDR and color settings is really low almost across the board. One flaw is the lack of frame rate smoothing technology like FreeSync or G-Sync but unless you’re very serious about high-performance gaming, this isn’t something you’ll likely even notice. In other words, for most gamers and especially for users who want to play their console or PC games in HDR, 4K, 1440p and 1080p, this TV is mostly great.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

Here are the UM8070’s important input and PC connectivity specs:

  • 4k @ 60Hz: 14.9 ms
  • 1080p @ 60Hz: 15 ms
  • 1080p @ 120Hz: 8.1 ms
  • 1080p @ 60Hz outside Game Mode: 36 ms
  • 4k @ 60Hz + HDR: 14.5 ms
  • 1440p @ 60Hz: 14.4 ms
  • 4k @ 60Hz Outside Game Mode : 36.2 ms
  • 4k @ 60Hz @ 4:4:4: 14.5 ms
  • 4K @ 120Hz: N/A
  • 1440p @ 120Hz: 8.2 ms
  • 1080p with FreeSync: N/A
  • 4K with interpolation activated: 84.7 ms

PC Gaming Input Connectivity

  • 1080p @ 120Hz: Yes
  • 1080p @ 60Hz @ 4:4:4: Yes
  • 4k @ 60Hz + 4:4:4: Yes
  • 1440p @ 60Hz: Yes
  • 4k @ 120Hz : Yes
  • 4k @ 60Hz @ 4:4:4: Yes
  • 1440p @ 120Hz: Yes


This particular television comes with all the key essentials of advanced, fully 4K HDR-capable connectivity that also handles all of its display needs. Thus, you get a full set of 4 HDMI ports with 4K capability at 60Hz (HDMI 2.0a) and 3 USB ports. These are standard port counts for most of today’s UHD TVs. There’s also full high speed WiFi connectivity and an Ethernet port. The UM8070’s only very slight defect is a lack of HDMI 2.1 for 4K gaming or video at 120Hz, but since virtually no consumer GPU can make 4K resolution hit 120fps and no consumer 4K movies or shows refresh at that frame rate anyhow, this isn’t yet important for any of today’s 4K TVs anyhow, yet. It won’t be a problem for most users.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

The following are the LG UM8070’s ports and their specifications:

  • HDMI : 4 (HDCP 2.2 & full HDMI 2.0a capacity)
  • HDMI 2.1 : N/A
  • USB : 3 (USB 2.0 x 2)
  • Digital Optical Audio Out : 1
  • Analog Audio Out 3.5 mm : 1
  • Tuner (Cable/Ant) : 1
  • Ethernet : 1
  • HDR10 support: Yes
  • HDR10+ support: No
  • Dolby Vision HDR support: Yes
  • Hybrid Log Gamma HDR support: Yes

The LG UM8070 TV models also offer audio connectivity in the following types.

  • 1 Passthrough ARC Dolby Digital
  • 1 Passthrough Dolby Digital via ARC
  • 1 Passthrough Optical Dolby Digital
  • 1 Passthrough DTS via Optical
  • 1 Passthrough ARC (only in HDMI port 2)


LG is selling the UM8070 4K ultra HD HDR LCD Smart TV models in three different sizes. Unfortunately for some space-conscious users, they’re all huge. On the other hand, even the biggest UM8070 edition is very affordable for its immense screen size. UM8070 editions are available at 75, 82 and 86 inch ranges.

These editions all sell for the following prices, found in the link below at the time of this writing. Bear in mind that these are subject to sometimes frequent downward change and it’s a good idea to click the following Amazon links for real-time pricing and all available discounts on this model.

A Review of the LG UM8070 4K HDR LCD TV (75UM8070, 82UM8070, 86UM8070)

Check out LG’s highly unique UM8070 4K HDR LCD TV with IPS and VA display on sale at Amazon

4.7 – 4 Reviews
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