LG OLED C2 55" (Evo) vs Sony X90K 65" (Full Array LED)
The Verdict
LG's OLED C2 and Sony's X90K represent different approaches to premium TV performance. Picture quality heavily favors the OLED C2, which delivers superior contrast, perfect blacks, and exceptional color accuracy thanks to self-emissive pixels,a fundamental advantage over LED technology. Sony's X90K counters with brighter peak brightness (1200 nits vs 800 nits), making it better for brightly-lit rooms and HDR content pop. Gaming performance slightly favors LG with 6ms input lag versus Sony's 8ms, though both include VRR and ALLM. Audio is stronger on the C2 with 40W and 2.2ch versus Sony's 20W and 2.0ch. Size matters: Sony's 65-inch diagonal offers significantly more screen real estate than LG's 55-inch for just $200 less, making value compelling. However, LG's superior picture quality, thinner design, and better audio justify its premium for those prioritizing visual excellence. For most buyers seeking the best overall experience, the LG OLED C2 wins on display technology, but Sony X90K offers better value with a larger screen for bright environments.
Who Should Buy
Buy the LG OLED C2 55" (Evo) if…
- →OLED Evo panel is noticeably brighter than the C1 generation
- →Dolby Vision IQ adapts HDR dynamically to room lighting
- →Best 55-inch gaming TV with 4K@120Hz, VRR, and <10ms input lag
Buy the Sony X90K 65" (Full Array LED) if…
- →Excellent Sony image processing at a competitive mid-range price
- →Full Array Local Dimming provides solid contrast for an LED TV
- →Dolby Vision and Dolby Atmos for home theater HDR experience
Category Scores
Pros & Cons
LG OLED C2 55" (Evo)
Pros
- OLED Evo panel is noticeably brighter than the C1 generation
- Dolby Vision IQ adapts HDR dynamically to room lighting
- Best 55-inch gaming TV with 4K@120Hz, VRR, and <10ms input lag
- Lightweight at 29.1 lbs — easy to wall-mount
- α9 Gen5 AI processor upscales content impressively
Cons
- OLED burn-in risk remains for static content viewers
- 800 nits peak brightness is modest compared to Mini-LED alternatives
- webOS ads are intrusive on the home screen
- Remote control lacks backlighting
Sony X90K 65" (Full Array LED)
Pros
- Excellent Sony image processing at a competitive mid-range price
- Full Array Local Dimming provides solid contrast for an LED TV
- Dolby Vision and Dolby Atmos for home theater HDR experience
- 120Hz with VRR and ALLM — capable gaming display
- Google TV with Chromecast built-in for seamless streaming
Cons
- Only 2 of 4 HDMI ports support 4K@120Hz
- 20W audio is very weak — soundbar essential
- Bluetooth 4.2 and Wi-Fi 5 are behind current standards
- Some blooming visible with full array backlighting in dark scenes
Full Specifications
| Spec | LG OLED C2 55" (Evo) | Sony X90K 65" (Full Array LED) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 300 x 300mm |
| Weight | 29.1 lbs | 46.3 lbs |
| Dimensions | 48.2 x 27.8 x 1.6 inches | 57.2 x 33.1 x 2.7 inches |
| Dimensions (w/ stand) | 48.2 x 29.9 x 8.2 inches | 57.2 x 35.3 x 12.0 inches |
| Audio | ||
| Output (watts) | 40 | 20 |
| Speakers | 2.2ch | 2.0ch Acoustic Multi-Audio |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 6 | 8 |
| Display | ||
| HDR | Dolby Vision, HDR10, HLG, Dolby Vision IQ | Dolby Vision, HDR10, HLG |
| Size | 55" | 65" |
| Type | OLED Evo (WOLED) | Full Array LED (VA LCD) |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 800 | 1200 |
| Smart TV | ||
| Os | webOS 22 | Google TV |
| Voice assistant | LG ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.0 | 4.2 |
| USB ports | 3 | 2 |
| HDMI ports | 4 | 4 |
Related Comparisons
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- Sony X90K 65" (Full Array LED) vs TCL QM8 65"
- Sony X90K 65" (Full Array LED) vs TCL 6-Series R655 55" (Mini-LED QLED)
- Sony X90K 65" (Full Array LED) vs Sony X90L 65"
- Sony X90K 65" (Full Array LED) vs Sony X85K 65" (LED)
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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