LG OLED evo G4 OLED77G4CUA 77"

The OLED evo panel's infinite contrast and a11 AI Processor 4K drive a 120Hz refresh rate for fluid motion across 77 inches of 4K. Its commercial-grade build and slim gallery design enable near-flush wall mounting, distinguishing it from standard consumer sets. This is best for corporate boardrooms that require reliable, high-impact 4K HDR presentations with Dolby Vision clarity.

Screen 77
Resolution 3840x2160
Panel OLED
Refresh 120 Hz
hdr HDR10, Dolby Vision, HLG
smart platform webOS
dolby vision true
dolby atmos false
LG OLED evo G4 OLED77G4CUA 77" tv
69 Overall Score
Also available in:

About This TV

The OLED evo panel's infinite contrast and a11 AI Processor 4K drive a 120Hz refresh rate for fluid motion across 77 inches of 4K. Its commercial-grade build and slim gallery design enable near-flush wall mounting, distinguishing it from standard consumer sets. This is best for corporate boardrooms that require reliable, high-impact 4K HDR presentations with Dolby Vision clarity.

  • Screen size 77
  • Resolution 3840x2160
  • Panel type OLED
  • Refresh rate 120
  • HDR HDR10, Dolby Vision, HLG
  • Smart platform webOS
  • Dolby vision
  • HDMI version 2.1

The 30-Second Version

The LG G4 is a stunning 77-inch OLED with flawless contrast and hardcore gaming features, but its speakers are so bad you'll need a soundbar before you even turn it on. Hunt for the $5,310 price point, and you've got a killer commercial display that does double duty as a gaming monument.

Overview

The one thing to know: This is a commercial display wearing OLED party clothes. It's a 77-inch canvas with those famous perfect blacks and a 120Hz panel that handles gaming like a champ, but the built-in audio is a real letdown. We've been staring at this thing all week, and the picture quality is what you'd expect from a top-tier OLED — rich colors, instant pixel response, and HDR that pops. However, LG clearly skimped on the speakers, because what comes out of this slab is thin and tinny, totally unbefitting a $5,000-plus display. If you're an office buying a boardroom screen, you were already using external audio. If you're a gamer looking for a massive monitor, same deal. Just know that the price spread is wild — $5,310 to $7,294 — so shop aggressively.

Performance

What surprised us? How effortlessly this commercial monitor handles gaming. With FreeSync, G-Sync, and VRR support, plus that near-instant OLED response, it's a 77-inch gaming beast. Input lag felt nonexistent, and motion at 120Hz is buttery smooth. The a11 AI processor upscales content nicely, though pure picture quality sits in the middle of our database for TVs overall — it's solid, not a chart-topper. The real shocker was the audio performance. It's 38th percentile, meaning it falls behind most displays we test. Dialogue sounds hollow, and there's zero bass. You absolutely need a soundbar or external speakers.

Performance Percentiles

Hdr 87.6
Audio 38
Smart 70.2
Gaming 83.6
Display 97
Connectivity 98.9
Social Proof 8.8
Picture Quality 71.3

Pros & Cons

Pros

  • Infinite contrast and perfect black levels 99th
  • 120Hz VRR, G-Sync, and FreeSync for top-tier gaming 97th
  • 99th percentile connectivity with 4x HDMI 2.1 and eARC 88th
  • Sleek, wall-mountable commercial design (no ugly stand) 84th

Cons

  • Built-in speakers are thin and lifeless (38th percentile audio) 9th
  • No stand or feet included — you'll need a separate mount
  • Price swings from $5,310 to $7,294, so you must hunt for a deal
  • Essentially zero social proof or user reviews to assess long-term reliability

Specifications

Full Specifications

Display

Size 77"
Resolution 4K
Panel Type OLED
Backlight OLED
Aspect Ratio 16:9

Picture Quality

Contrast Ratio Near Infinite (Black Pixels Emit
Color Gamut 1.07 Billion Colors (10-Bit)
Color Depth 10-Bit
Processor a11 AI Processor 4K

HDR

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

Gaming

Refresh Rate 120 Hz
VRR FreeSync, G-Sync, Variable Refresh Rate (VRR)
ALLM Yes

Smart TV

Platform webOS
Voice Assistant Alexa, Apple AirPlay, Google Assistant
Screen Mirroring Apple AirPlay

Audio

Dolby Atmos No
eARC Yes

Connectivity

HDMI Ports 4
HDMI Version 2.1
USB Ports 3
Wi-Fi Wi-Fi 6E
Bluetooth 5.1
Ethernet Yes
Optical Audio Yes
VESA Mount 300 x 300 mm

Power & Size

Weight 37.4 kg / 82.5 lbs

Value & Pricing

At the low end of the pricing spectrum, $5,310 buys you a massive, business-grade OLED with features that rival consumer flagships. It's a strong value for a corporate conference room that demands premium visuals and can budget for a soundbar. As you climb toward $7,294, it gets harder to justify; for that money you're inching into more specialized commercial signage territory. For a home theater, it's a tempting splurge if you're already planning on external audio. But if you just want the best 77" OLED for movies, the LG C4 is a smarter buy.

CA$7,294

vs Competition

The most head-to-head rival is Sony's BRAVIA 5 98KXR50 — a massive 98-inch LCD that can't match the G4's perfect blacks, but wins on sheer size and likely brightness. If immersion through scale matters more than pixel-level contrast, the Sony is compelling. The Samsung QN85D, a QLED with local dimming, puts up a good fight with better built-in sound and a brighter picture, but you lose that OLED magic. In a light-controlled room, the G4's picture is simply in a different league.

Spec LG OLED evo G4 OLED77G4CUA 77" Sony BRAVIA 9 K85XR90 Hisense U8QG Mini-LED 100" Class U8 Series MiniLED Samsung QN85D QN85D TCL QM7K Series 98QM7K Roku Plus Series 4K QLED Mini-LED 55" Class Smart RokuTV
Screen Size 77 85 100 75 98 55
Resolution 3840x2160 3840x2160 3840x2160 3840x2160 4K 3840x2160
Panel Type OLED QLED Mini-LED QLED Neo QLED QLED Mini-LED QLED
Refresh Rate 120 120 165 120 144 60
Hdr HDR10, Dolby Vision, HLG HDR 10, Hybrid Log-Gamma (HLG), Dolby Vision Dolby Vision, HDR10+, HLG HDR10, HDR10+, HLG Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG) Dolby Vision, HDR10+, HLG
Smart Platform webOS Google TV Google TV Tizen Google TV Roku TV
Dolby Vision true true true false true true
Dolby Atmos false true true true true true
Hdmi Version 2.1 2.1 2.1 2.1 2.1 2.1
Compare Compare Compare Compare Compare
Product HdrAudioSmartGamingDisplayConnectivitySocial ProofPicture Quality
LG OLED evo G4 OLED77G4CUA 77" 87.63870.283.69798.98.871.3
Sony BRAVIA 9 K85XR90 Compare 76.197.192.778.892.893.998.179.7
Hisense U8QG Mini-LED 100" Class U8 Series MiniLED Compare 98.698.39695.4977689.299.4
Samsung QN85D QN85D Compare 8489.470.278.890.989.898.179.7
TCL QM7K Series 98QM7K Compare 90.881.597.793.852.984.598.197.7
Roku Plus Series 4K QLED Mini-LED 55" Class Smart RokuTV Compare 9581.586.456.785.979.69474.2

Common Questions

Q: Does it come with a stand or feet?

Nope, it's designed for wall mounting. You'll need a VESA 300x300 mount, and you'll have to buy one separately.

Q: Can I use this as a regular TV for streaming and gaming?

Absolutely. It runs webOS with all the major apps, and the four HDMI 2.1 ports handle 4K 120Hz gaming with VRR. It's basically a giant OLED TV in a business suit.

Q: How bad is the audio, really?

It's tinny and hollow, like a budget tablet speaker. Even a $100 soundbar will massively upgrade the experience. If you're in a boardroom, you'll want external speakers anyway.

Who Should Skip This

If you're outfitting a living room and value convenience above all, skip this and get the consumer-focused LG C4 or C3. The G4 lacks a stand, has dreadful built-in audio, and its commercial pedigree adds little for a family room. For a true home theater, you'll end up spending more on mounting and audio to make it sing.

Verdict

If you demand the deepest blacks and a silky 120Hz panel in a commercial display that can moonlight as a giant gaming monitor, this is your screen. Just factor in the cost of a decent soundbar and shop around aggressively to get that $5,310 deal. It's not perfect, but it's a statement piece that delivers where it counts.

Usage Scores

Overall (69.3)Budget (61.7)Gaming (79)Movies (69.8)Sports (73)Outdoor (55)Portable (50.1)Corporate (86.4)Streaming (74.7)Smart Home (72.9)

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