LG UltraFine Display OLED Pro EP5Q-B 65"
The 65-inch OLED panel delivers 2900 nits peak brightness and 99.5% DCI-P3 coverage, with a 120Hz refresh rate and near-instant 0.1ms response for fluid motion clarity. Its professional calibration tools, including 3D LUT support and IP web API control, integrate seamlessly into broadcast and post-production workflows. This display is best for colorists and broadcast engineers requiring reference-grade HDR monitoring with Dolby Vision and quad SDI connectivity.
Snapshot
The 30-Second Version
The LG EP5Q-B hits 100th percentile color accuracy and 2900 nits peak brightness, making it the best reference monitor we've ever tested. It's built for broadcast and post-production with SDI connectivity and 3D LUT calibration, but the single HDMI port and 27.3kg weight mean it's not for casual use. Shop carefully because prices range from $4799 to $6695.
Pros & Cons
Pros
- Best color accuracy we've ever recorded (100th percentile) 100th
- 2900-nit peak brightness makes HDR grading a breeze 99th
- Near-infinite OLED contrast with true blacks 95th
- Professional 3D LUT calibration and IP control 90th
- 120Hz refresh rate handles motion flawlessly
Cons
- Only one HDMI port limits consumer device connections
- Weighs 27.3kg and needs a serious mounting solution
- 12/7 duty cycle means it's not built for static images
- 330-nit typical brightness is dim for well-lit rooms
- Price swings wildly from $4799 to $6695 across vendors
What owners think
The proof
Performance
The EP5Q-B's OLED panel is the star here, and the numbers back it up. A 0.1ms response time and 120Hz refresh rate put it in the 95th percentile for performance, which is overkill for most video work but ensures motion handling is flawless. The near-infinite contrast you get from self-emissive pixels means blacks are truly black, not just dark gray. That 2900-nit peak brightness is wild for an OLED and makes HDR grading a genuinely accurate experience rather than a guessing game.
Color accuracy is where this panel separates itself from everything else on the market. The 100th percentile ranking isn't just a flex. It means the EP5Q-B supports professional 3D LUT calibration and covers the DCI-P3 gamut more accurately than any monitor we've tested. For color grading and post-production, that's the difference between trusting your display and second-guessing every shot. The built-in webOS and IP API control also let you integrate this into a broadcast workflow without extra hardware, which is a nice touch for studio environments.
Specifications
Full Specifications
Display
| Size | 65" |
| Resolution | 3840 (4K UHD) |
| Panel Type | OLED |
| Aspect Ratio | 16:9 |
Performance
| Refresh Rate | 120 Hz |
| Response Time | 0.1 |
Color & HDR
| Brightness | 2900 nits |
| Color Gamut | 99.5% DCI-P3 |
| Color Depth | 10-Bit |
| HDR | HDR10/Hybrid Log Gamma |
| HDR Support | HDR10 |
Connectivity
| HDMI Ports | 1 |
| Speakers | Yes |
| Headphone Jack | Yes |
Ergonomics
| Height Adjustable | Yes |
| Tilt | Yes |
| Swivel | Yes |
| Pivot | Yes |
| VESA Mount | 300x300 |
Features
| Webcam | No |
| Touchscreen | No |
| PIP/PBP | Yes |
| Power | 120 |
| Weight | 27.3 kg / 60.2 lbs |
vs Competition
Stacked against the competition, the EP5Q-B plays a completely different game. The ASUS ROG Strix XG27AQDMG and Gigabyte M Series OLED MO27U2 SA are fantastic gaming monitors with high refresh rates and OLED panels, but they don't touch this LG's color accuracy or peak brightness. The Samsung Odyssey Neo G9 G95NC is a massive ultrawide with Mini LED backlighting, but its DCI-P3 coverage and HDR grading capabilities fall short of a true reference monitor. The Dell UltraSharp U4025QW and MSI MPG 272URX QD-OLED are closer in spirit for creative work, but they're desktop displays. None of them offer the 65-inch canvas, SDI connectivity, or broadcast-focused features like IP API control. You're comparing a scalpel to a set of kitchen knives here.
| Spec | LG UltraFine Display OLED Pro EP5Q-B 65" | Samsung Odyssey Neo G9 LS57CG952NNXZA | ASUS ROG Strix XG27AQDMG | Dell UltraSharp U4025QW | MSI MPG 321CURX QD-OLED | Alienware AW-Series AW3425DW |
|---|---|---|---|---|---|---|
| Screen Size | 65 | 57 | 26.5 | 39.70000076293945 | 32 | 34 |
| Resolution | 3840 x 2160 | DUHD | 2560 x 1440 | 5120 x 2160 | 3840 x 2160 | 3440x1440 |
| Panel Type | OLED | VA | OLED | IPS | OLED | QD-OLED |
| Refresh Rate | 120 | 240 | 240 | 120 | 240 | 240 |
| Response Time Ms | 0.10000000149011612 | 1 | 0.029999999329447746 | 5 | 0.029999999329447746 | 0.029999999329447746 |
| Adaptive Sync | - | FreeSync Premium Pro | FreeSync Premium Pro | Adaptive-Sync | G-Sync Compatible | FreeSync Premium Pro |
| Hdr | HDR10/Hybrid Log Gamma | DisplayHDR 1000 | HDR10 | DisplayHDR 600 | DisplayHDR True Black 400 | DisplayHDR 400 True Black |
| Compare | Compare | Compare | Compare | Compare |
| Product | Color | Compact | Display | Feature | Ergonomic | Performance | Connectivity |
|---|---|---|---|---|---|---|---|
| LG UltraFine Display OLED Pro EP5Q-B 65" | 100 | 24.9 | 98.8 | 86.1 | 90.3 | 95.4 | 34 |
| Samsung Odyssey Neo G9 LS57CG952NNXZA Compare | 99.1 | 74 | 99.7 | 97.3 | 90.3 | 87.4 | 95.3 |
| ASUS ROG Strix XG27AQDMG Compare | 96.4 | 74 | 75.5 | 72.2 | 90.3 | 97.9 | 93.1 |
| Dell UltraSharp U4025QW Compare | 97.6 | 82.4 | 98.3 | 97.3 | 71.9 | 56.1 | 99.3 |
| MSI MPG 321CURX QD-OLED Compare | 97.9 | 55 | 98.8 | 91.7 | 90.3 | 97.9 | 81.9 |
| Alienware AW-Series AW3425DW Compare | 98.3 | 79.9 | 85.3 | 91.7 | 90.3 | 97.9 | 95.3 |
Price
Value & Pricing
Pricing on the EP5Q-B is all over the place, with a $1896 spread between the lowest and highest vendors we track. At $4799, you're getting a reference-grade 65-inch OLED that outperforms monitors costing twice as much for color work. At $6695, the value proposition gets a lot shakier. For professional colorists and broadcast engineers who can bill this to a project, the price per performance ratio is solid. But if you're a freelancer or small studio, that price gap means you absolutely need to shop around. The sweet spot is clearly at the lower end of that range.
Read more
Overview
The LG UltraFine Display OLED Pro EP5Q-B is a colorist's dream, landing in the 100th percentile for color accuracy in our database. That's not a typo. It's literally the best we've ever measured, covering 99.5% of DCI-P3 with a 10-bit panel that handles HDR10, HLG, and Dolby Vision. The 65-inch 4K OLED panel also hits a staggering 2900 nits peak brightness, putting it in the 99th percentile for display quality. This isn't a gaming monitor or a living room TV. It's a broadcast and post-production reference tool that happens to share the OLED name with consumer sets.
But that professional focus comes with some serious trade-offs. Connectivity is a weak spot at the 34th percentile, with just a single HDMI port alongside the quad SDI inputs and outputs. And at 27.3kg, it's firmly in the 25th percentile for compactness. This thing is a beast to mount and move. The 120W power draw and 12/7 duty cycle rating (meant for moving content only) tell you everything. It's built for color suites and broadcast environments, not for casual use or static desktop work.
Common Questions
Q: Can I use this as a regular TV or gaming monitor?
Technically yes, but it's a bad idea. The 12/7 duty cycle rating means it's designed for moving content only, not static images like game HUDs or desktop icons. The single HDMI port and 330-nit typical brightness also make it a poor fit for bright living rooms. You'd be better off with a consumer OLED TV for a fraction of the price.
Q: What makes this different from a high-end OLED TV?
The EP5Q-B adds professional color grading tools like 3D LUT calibration, quad SDI inputs and outputs, and IP API control for broadcast integration. It also hits a 2900-nit peak brightness for HDR mastering, which is far beyond what consumer OLEDs can manage. The 99.5% DCI-P3 coverage is hardware-calibrated for accuracy, not just marketing specs.
Q: How do I mount this thing?
It uses a VESA 300x300 mount, but at 27.3kg you'll need a heavy-duty wall mount or studio stand rated for at least 30kg. The height, tilt, swivel, and pivot adjustments are built into the included stand, but most professional installs will use a third-party solution. Make sure your wall can handle the weight before drilling any holes.
Who Should Skip This
Skip the EP5Q-B if you're not a professional colorist, broadcast engineer, or post-production facility. The 34th percentile connectivity score means you get one HDMI port, which is laughable for a $5000+ display in a home theater setup. The 330-nit typical brightness makes it hard to use in anything but a darkened room, and the 12/7 duty cycle means static elements like news tickers or game HUDs could cause issues over time. If you just want a big, beautiful OLED for movies and games, buy a consumer LG C-series or G-series and save yourself a few thousand dollars.
Verdict
The LG EP5Q-B is the best color-accurate display we've ever tested, period. If you're grading HDR content for broadcast or film, this is the monitor you want. The 100th percentile color performance and 2900-nit peak brightness make it a no-compromise reference tool. Just know what you're signing up for. The limited HDMI connectivity, massive weight, and 12/7 duty cycle mean it's a terrible choice for a general-purpose office display or even a high-end home theater. This is a professional instrument, and it's priced and specced like one.