LG UR340C 86UR340C9UD 86"

★★★★★ 5.0 (1)

A 120Hz refresh rate and 5ms response time ensure smooth motion for commercial signage, backed by a 16-hour/7-day duty cycle and integrated USB data cloning and Crestron control for easy multi-display management. The 86-inch 4K direct LED panel serves large-format visuals without needing high peak brightness, keeping total cost of ownership low for volume deployments. This display is best for IT administrators and business owners deploying digital signage across multiple rooms or branches.

Screen 86"
Resolution 3840x2160
Panel LED
Refresh 120 Hz
HDR HDR10, HLG
hdmi version 2.0
LG UR340C 86UR340C9UD 86" tv
52 Overall Score

No current retailer price

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Snapshot

The 30-Second Version

A massive 86-inch commercial workhorse with a smooth 120Hz panel and dim, mediocre HDR. Great for lobbies, wrong for living rooms.

Pros & Cons

Pros

  • Massive 86-inch 4K panel with a 120Hz refresh rate 82nd
  • 5ms response time keeps motion crisp 81st
  • Crestron Connected and USB data cloning make multi-display installs painless 69th
  • 16-hour/7-day duty cycle means it can run all day without complaining

Cons

  • 330 nits is dim for HDR content
  • 1200:1 contrast ratio is mediocre, blacks look gray in dark rooms
  • HDMI 2.0 only, no 4K at 120Hz over HDMI
  • 20W 2.0 channel audio is weak, you'll need external speakers

The proof

Performance

The 120Hz refresh rate is the quiet hero here. Most commercial displays in this size class stick to 60Hz, so getting smooth motion on an 86-inch panel is a genuine win, especially for retail video walls or sports bar setups. The 5ms response time backs that up nicely. What surprised us is how weak the smart features are. This thing lands in the 7th percentile for smart functionality, which means you're basically getting a dumb panel with a network port. For a commercial install, that's fine. For a home user expecting built-in apps, it's a letdown.

Performance Percentiles

HDR 62.5
Audio 33
Smart 6.4
Gaming 82.2
Display 80.9
Connectivity 48.9
Social Proof 49.1
Picture Quality 68.8

Specifications

Full Specifications

Display

Size 86"
Resolution 4K
Panel Type LED
Backlight LED
Aspect Ratio 16:9
Screen Finish glossy

Picture Quality

Brightness 330 nits
Contrast Ratio 1200:1

HDR

HDR Formats HDR10, HLG
Dolby Vision No
HDR10+ No
HLG Yes

Gaming

Refresh Rate 120 Hz
Response Time 5

Audio

Speaker Config 2
Wattage 20
Dolby Atmos No

Connectivity

HDMI Ports 3
HDMI Version 2
USB Ports 1
Ethernet Yes
Optical Audio Yes
VESA Mount 600x400

Power & Size

Power 313
Energy Star No
Weight 45.2 kg / 99.6 lbs

vs Competition

Stack this against the Sony BRAVIA XR XR77A95L and it's not even close on picture quality. The Sony's OLED panel destroys the LG's 1200:1 contrast ratio, but you're also paying a lot more and getting a smaller screen. The Samsung Neo QLED QN75QN990FFXZA is another step up in brightness and HDR performance, but again, smaller and pricier. Where the LG wins is sheer size per dollar and the commercial management tools. If you're outfitting an office lobby or retail space, the Crestron certification and USB cloning make this the practical choice. If you're buying for your basement, the Hisense U8 or TCL QM6K will give you a much better picture for similar or less money.

Spec LG UR340C 86UR340C9UD 86" Samsung Neo QLED QN990F Sony BRAVIA 9 K85XR90 TCL QM8K Series 75QM8K Hisense U8 Series 100U8QG Roku Plus Series 55R6C7
Screen Size 86 75 85 75 99.5 55
Resolution 3840x2160 7680x4320 3840x2160 3840x2160 3840x2160 3840x2160
Panel Type LED Mini-LED Mini-LED Mini-LED Mini-LED QLED
Refresh Rate 120 120 120 144 165 60
Hdr HDR10, HLG HDR10, HDR10+, HLG HDR10, HLG, Dolby Vision Dolby Vision, HDR 10, HDR 10+, Hybrid Log-Gamma (HLG) Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG) Dolby Vision, HDR 10+, Hybrid Log-Gamma (HLG)
Smart Platform - Tizen Google TV Google TV Google TV Roku TV
Dolby Vision false false true true true true
Dolby Atmos false true true true true true
Hdmi Version 2.0 2.1 2.1 2.1 2.1 2.1
Compare Compare Compare Compare Compare
Product HDRAudioSmartGamingDisplayConnectivitySocial ProofPicture Quality
LG UR340C 86UR340C9UD 86" 62.5336.482.280.948.949.168.8
Samsung Neo QLED QN990F Compare 84.199.893.588.399.599.999.683.6
Sony BRAVIA 9 K85XR90 Compare 87.697.291.978.294.792.787.178.1
TCL QM8K Series 75QM8K Compare 9192.69992.989.692.787.199.3
Hisense U8 Series 100U8QG Compare 9198.495.994.794.786.175.498.8
Roku Plus Series 55R6C7 Compare 75.981.899.756.877.78993.836

Price

Value & Pricing

At around $2,336 to $2,400 USD, you're paying for size and commercial reliability, not picture quality. For a business that needs a giant screen running 16 hours a day with remote management, that's a fair deal. For a home user, it's a tough sell. You can get a 75-inch consumer TV with better HDR, better smart features, and better audio for less money. The value proposition only makes sense if you actually need the commercial features.

We started tracking prices for this product on May 25, 2026. The chart appears once we have more data.

Read more

Overview

This is a big, bright-enough 86-inch panel built for lobbies and conference rooms, not your living room movie nights. The LG UR340C nails the commercial basics: 4K resolution, a 120Hz panel, and a 5ms response time that keeps fast-moving content from turning into soup. But at 330 nits and a 1200:1 contrast ratio, it's not going to wow anyone with HDR fireworks. Think of it as a workhorse display that happens to be huge, not a home theater centerpiece.

Common Questions

Q: Can I use this as a regular home TV?

You can, but you'll be disappointed. The smart features are nearly nonexistent, the audio is weak, and the picture quality is average at best. You'd be better off with a consumer TV from Hisense or TCL at this price.

Q: Does it support 4K at 120Hz for gaming?

No. The HDMI ports are 2.0, which caps out at 4K 60Hz. The 120Hz panel helps with motion smoothing, but you won't get high refresh rate 4K gaming from a PC or console.

Q: How bright is the screen?

330 nits. That's fine for indoor commercial spaces with controlled lighting, but it'll struggle in bright rooms or near windows. Don't expect HDR highlights to pop.

Who Should Skip This

If you're looking for a home theater TV with deep blacks, punchy HDR, and built-in streaming apps, this isn't it. Go get a Hisense U8 or TCL QM6K instead. You'll get a better picture, better smart features, and better audio for the same or less money.

Verdict

Buy this if you need a giant, reliable commercial display that your IT team can manage remotely. Skip it if you want a great home theater TV. The LG UR340C is a purpose-built tool, and it's very good at that specific job. Just don't expect it to compete with consumer TVs on picture quality, because it won't.

Usage Scores

Overall (51.5)Budget (53.5)Gaming (66.1)Movies (43.8)Sports (59.2)Outdoor (37.8)Portable (30.2)Corporate (54.6)Streaming (43.6)Smart Home (34.5)

Other Configurations4

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