LG OLED evo AI LG OLED evo AI C5 77" 4K HDR Smart TV Review
The LG C5 OLED offers a huge 77-inch screen and gamer-friendly 120Hz, but our data shows its HDR performance is a step behind other OLEDs. Is it still worth it?
The 30-Second Version
The LG C5 is a 77-inch OLED built for bright rooms and gamers. Its 120Hz panel and anti-glare features are strengths, but HDR performance is just okay for an OLED. At around $2,200, it's a value play on size, but you compromise on peak picture quality and smart features. Get it if you want a big OLED for a living room, not a dedicated home theater.
Overview
If you're hunting for a big-screen OLED that doesn't need a pitch-black room to look good, the LG C5 is a pretty compelling option. At 77 inches, it's firmly in the 'statement piece' category, and with its 120Hz panel and four HDMI ports, it's clearly built with gamers and home theater enthusiasts in mind. The 'Bright Room Ready' and 'Brightness Booster' features are the main story here, promising to tackle OLED's traditional weakness: maintaining punchy contrast when the sun's shining through your windows.
Performance
Our data shows this TV lands in the 84th percentile for both display and gaming performance, which is solid. That 120Hz refresh rate is the real key for gamers, making fast-paced action look smooth and reducing input lag. But there's a catch. Its picture quality and HDR performance scores are surprisingly lower, sitting in the 45th and 32nd percentiles respectively. This suggests that while the brightness tech works to combat glare, it might not deliver the absolute deepest blacks or the most spectacular HDR pop that OLED purists crave, especially when compared to higher-end models.
Pros & Cons
Pros
- Excellent gaming performance with a 120Hz panel and low input lag. 100th
- Large 77-inch screen size is great for immersive viewing. 100th
- Brightness features help it perform better in well-lit rooms than many OLEDs. 99th
- Strong connectivity with 4 HDMI ports for multiple consoles or streaming devices. 99th
- OLED technology provides perfect blacks and wide viewing angles.
Cons
- Picture quality and HDR performance scores are middling for an OLED, suggesting a trade-off for brightness.
- Built-in audio quality is a weak point, scoring in the bottom third of TVs.
- Smart TV platform is basic and lags behind competitors in features and speed.
- Very low social proof score indicates it's a newer or less-reviewed model, making it a bit of an unknown.
- It's a massive, heavy panel at over 50 pounds, so mounting is a two-person job.
Specifications
Full Specifications
Display
| Size | 77" |
| Resolution | 4K (2160p) |
| Panel Type | OLED |
| Backlight | Quick Media Switching (QMS) |
| Aspect Ratio | 16:9 |
| Curved | No |
| Year | 2025 |
Picture Quality
| Contrast Ratio | Near Infinite (Black Pixels Emit |
| Color Gamut | Not Specified by Manufacturer |
| Motion Tech | OLED Motion |
| Processor | OLED Dynamic Tone Mapping Pro |
HDR
| HDR Formats | Dolby Vision, HDR10, HLG |
| Dolby Vision | Yes |
| HDR10+ | No |
| HLG | No |
Gaming
| Refresh Rate | 120 Hz |
| Response Time | 0.1 |
| VRR | FreeSync Premium, G-Sync |
| ALLM | Yes |
Smart TV
| Platform | webOS |
| Voice Assistant | Google Assistant, Alexa |
| Screen Mirroring | Apple AirPlay 2 |
| Works With | Amazon Alexa, Google Home, Apple Home |
Audio
| Dolby Atmos | No |
| Surround Sound | Dolby Atmos |
| eARC | Yes |
Connectivity
| HDMI Ports | 4 |
| HDMI Version | 2.1 |
| USB Ports | 3 |
| Wi-Fi | Wi-Fi 6E |
| Bluetooth | 5.3 |
| Ethernet | Yes |
| Optical Audio | Yes |
| VESA Mount | 300x200 |
Power & Size
| Energy Star | Yes |
| Annual Energy | 375 |
| Weight | 23.5 kg / 51.8 lbs |
Value & Pricing
At around $2,200, this 77-inch OLED sits in an interesting spot. It's significantly cheaper than LG's own flagship G5 series or Sony's high-end BRAVIA models, but you're paying for that size and the core OLED experience. The value proposition hinges on whether you prioritize screen real estate and brightness over peak picture quality. For the price, you're getting a huge, gaming-ready OLED, but you are making some concessions on HDR impact and smart features to get there.
vs Competition
The most direct competitor is likely the Sony BRAVIA 5 in an 85-inch size. Sony typically has better upscaling and motion handling, but you'd be comparing Mini-LED to OLED, which is a fundamental tech difference. The Hisense U6 and TCL QM8 are Mini-LED TVs that will likely get much brighter for HDR and cost less, but they can't match the perfect blacks and viewing angles of OLED. Then there's LG's own G5 OLED, which is the step-up model with a brighter panel and better processing, but for a much higher price. The trade-off here is clear: the C5 offers a large OLED canvas at a relatively accessible price, but you're giving up some peak HDR performance and smart TV polish to hit that number.
| Spec | LG OLED evo AI LG OLED evo AI C5 77" 4K HDR Smart TV | Sony BRAVIA 5 Sony BRAVIA 5 85" 4K HDR Smart Mini-LED TV | Samsung Neo QLED Samsung QN800D 75" 8K HDR Smart Neo QLED Mini-LED | LG OLED evo - C5 series LG - 65" Class C5 Series OLED evo AI 4K UHD Smart | Hisense U65QF Mini-LED Hisense - 75" Class U6 Series MiniLED QLED UHD 4K | Roku Mini-LED QLED 4K - Pro Roku - 55" Class Pro Series 4K QLED Mini-LED Smart |
|---|---|---|---|---|---|---|
| Screen Size | 77 | 85 | 75 | 65 | 75 | 55 |
| Resolution | 3840x2160 | 3840x2160 | 7680x4320 | 3840x2160 | 3840x2160 | 3840x2160 |
| Panel Type | OLED | Mini-LED | Mini-LED | OLED | Mini-LED QLED | Mini-LED QLED |
| Refresh Rate | 120 | 120 | 120 | 120 | 144 | 120 |
| Hdr | Dolby Vision, HDR10, HLG | Dolby Vision, HDR10, HLG | HDR10+, HLG | Dolby Vision, HDR10, HLG | Dolby Vision, HDR10+, HLG | Dolby Vision |
| Smart Platform | webOS | Google TV | Tizen | webOS | Fire TV | Roku TV |
| Dolby Vision | true | true | false | true | true | true |
| Dolby Atmos | false | false | true | true | true | true |
| Hdmi Version | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
Common Questions
Q: How does the 'Bright Room Ready' feature actually work? Is it just a marketing term?
It's LG's suite of technologies, including the 'Brightness Booster', that increases the overall luminance of the panel. Unlike standard OLEDs that can look dim in daylight, this one pushes more light through the pixels to maintain contrast. Our data shows its display score is high, but its pure picture quality score is lower, which suggests it's effective for visibility but may slightly impact absolute black levels compared to a darker-room OLED.
Q: Is the 120Hz refresh rate good for movies, or just for gaming?
It's primarily a gaming feature for smoother gameplay. For most film content, which is 24 or 30 frames per second, a 120Hz panel allows for better motion handling (like reducing judder) if the TV's processing is good. However, the C5's middling smart and processing scores suggest its movie upscaling and motion smoothing might not be as refined as a Sony or high-end LG model.
Q: The audio score is low. Will I need a soundbar?
Almost certainly, yes. Scoring in the 36th percentile means its built-in speakers are below average. For a TV this large and with an OLED's thin profile, the audio was likely a compromise. Plan to budget for at least a basic soundbar or a home theater system to do the picture justice, especially for movies and sports.
Q: How does it compare to a cheaper Mini-LED TV like the TCL QM8?
It's a classic tech trade-off. The TCL QM8 (Mini-LED) will get much brighter for eye-searing HDR highlights and likely costs less. The LG C5 (OLED) has perfect black levels, infinite contrast, and wider viewing angles. Choose the C5 for deep blacks in a room with some light, or the QM8 for maximum brightness punch in a very bright room or for spectacular HDR.
Who Should Skip This
Skip this TV if you're setting up a dedicated, light-controlled home theater. In a dark room, its brightness-boosting tech isn't as necessary, and you'd be better served by an OLED with higher picture quality scores, like LG's G-series or a Sony A-series, for a more reference-grade HDR experience. Also, avoid it if you hate clunky smart TV interfaces. Its low smart score indicates the built-in WebOS platform might feel slow and ad-heavy compared to Google TV or Roku. In that case, just add an external streaming stick and focus on the panel itself.
Verdict
This is a great pick for a gamer or movie watcher who wants a massive OLED screen for a shared living space that isn't always dark. The brightness features are a legitimate help, and the 120Hz gaming support is top-tier. If your priority is the most cinematic, jaw-dropping HDR experience with every spec maxed out, you might want to look at a higher-end OLED or a bright Mini-LED. But if you want a huge, beautiful OLED that can handle some ambient light and won't completely break the bank, the LG C5 makes a strong case for itself.