LG C4 65" vs Sony X80K 55" (LED)
The Verdict
LG's C4 OLED delivers flagship performance with exceptional picture quality at 1300 nits peak brightness, true blacks from OLED technology, and a 120Hz refresh rate ideal for gaming with 1ms input lag and full VRR/ALLM support. Sony's X80K LED offers solid 4K performance in a smaller 55" package at less than 40% of the price, though its 60Hz refresh rate and 16ms input lag make it less suitable for competitive gaming. Audio capabilities favor LG with 60W 2.2ch Dolby Atmos versus Sony's modest 20W 2.0ch system. Both include modern smart TV platforms and voice assistants, yet LG's webOS 24 with dedicated ThinQ AI processor provides superior content upscaling and responsiveness. For serious cinephiles and gamers willing to invest, the C4 is genuinely transformative; budget-conscious buyers seeking good value should choose the X80K, understanding its limitations in contrast and motion handling.
Who Should Buy
Buy the LG C4 65" if…
- →Perfect black levels from self-emissive OLED pixels — best-in-class contrast
- →All four HDMI 2.1 ports at full bandwidth with VRR, ALLM, and G-Sync Compatible
- →1ms input lag makes it one of the best gaming TVs at any price
Buy the Sony X80K 55" (LED) if…
- →Sony's X1 processor delivers noticeably better image processing than budget competitors
- →Dolby Vision and Dolby Atmos provide a premium HDR experience
- →Google TV with Chromecast built-in handles streaming beautifully
Category Scores
Pros & Cons
LG C4 65"
Pros
- Perfect black levels from self-emissive OLED pixels — best-in-class contrast
- All four HDMI 2.1 ports at full bandwidth with VRR, ALLM, and G-Sync Compatible
- 1ms input lag makes it one of the best gaming TVs at any price
- Dolby Vision IQ and Dolby Atmos support for premium cinematic experience
- webOS 24 is clean, fast, and nearly ad-free compared to Tizen
Cons
- OLED burn-in risk with prolonged static content (e.g. news tickers, HUDs)
- Peak brightness trails Mini-LED rivals in very bright HDR highlights
- Slightly lower brightness than the G4, limiting HDR pop in sunlit rooms
- USB-A ports are only USB 2.0 speed
Sony X80K 55" (LED)
Pros
- Sony's X1 processor delivers noticeably better image processing than budget competitors
- Dolby Vision and Dolby Atmos provide a premium HDR experience
- Google TV with Chromecast built-in handles streaming beautifully
- Triluminos Pro color engine produces natural, accurate colors
- Four HDMI ports for connecting multiple devices
Cons
- 60Hz panel with no VRR — not for gaming
- 500 nits brightness limits HDR impact
- Edge-lit LED without local dimming has poor contrast
- 20W audio is thin and tinny
- Bluetooth 4.2 limits wireless audio options
Full Specifications
| Spec | LG C4 65" | Sony X80K 55" (LED) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 300 x 300mm |
| Weight | 52.9 lbs | 29.1 lbs |
| Dimensions (w/ stand) | 57.0 x 36.9 x 10.1 inches | 48.7 x 30.5 x 9.4 inches |
| Dimensions | — | 48.7 x 28.3 x 3.0 inches |
| Audio | ||
| Output (watts) | 60 | 20 |
| Speakers | 2.2ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 16 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | Dolby Vision, HDR10, HLG |
| Size | 65" | 55" |
| Type | OLED evo | Direct LED (IPS / VA varies by size) |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 60Hz |
| Brightness (nits) | 1300 | 500 |
| Smart TV | ||
| Os | webOS 24 | Google TV |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Processor | ||
| Chipset | α9 Gen 7 AI Processor 4K | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.0 | 4.2 |
| USB ports | 3 | 2 |
| HDMI ports | 4 | 4 |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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