LG C4 65" vs Sony X90L 65"
The Verdict
Both 65-inch 4K TVs deliver excellent value at their respective price points, but they serve different priorities. The LG C4 costs $700 more and justifies it through superior picture quality: its OLED evo panel produces perfect blacks with 1300 nits peak brightness and Dolby Vision IQ support, while the Sony X90L uses Full Array LED technology that can't match that contrast ratio despite matching brightness specs. Gaming performance heavily favors LG with 1ms input lag versus Sony's 8ms, plus the LG includes 60W audio with 2.2ch versus Sony's modest 20W 2.0ch system. The Sony X90L counters with solid gaming credentials, lighter weight at 48.5 lbs, and Google TV's superior app ecosystem. Both handle 120Hz natively and feature VRR/ALLM for modern consoles. If you prioritize picture quality, gaming responsiveness, and audio performance, the LG C4 is the clear winner despite the premium pricing. If budget constraints matter most and you prefer Google TV's interface, the Sony X90L delivers remarkable value for a Full Array LED TV with respectable specs across the board.
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 X90L 65" if…
- →Sony's Cognitive Processor XR delivers best-in-class upscaling and color
- →Full-array local dimming produces excellent contrast for an LED TV
- →Dolby Vision and Dolby Atmos support for premium content
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 X90L 65"
Pros
- Sony's Cognitive Processor XR delivers best-in-class upscaling and color
- Full-array local dimming produces excellent contrast for an LED TV
- Dolby Vision and Dolby Atmos support for premium content
- 120Hz with VRR makes it genuinely good for PS5 gaming
- Google TV has the widest app selection of any smart TV platform
Cons
- Blooming visible in dark scenes with bright highlights
- 20W speakers are average despite the Acoustic Multi-Audio branding
- Heavier than competing LED TVs at 48.5 lbs
- Google TV can feel sluggish and ad-heavy on the home screen
Full Specifications
| Spec | LG C4 65" | Sony X90L 65" |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 300 x 300mm |
| Weight | 52.9 lbs | 48.5 lbs |
| Dimensions (w/ stand) | 57.0 x 36.9 x 10.1 inches | 57.3 x 35.6 x 11.4 inches |
| Audio | ||
| Output (watts) | 60 | 20 |
| Speakers | 2.2ch | 2.0ch Acoustic Multi-Audio |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 8 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | Dolby Vision, HDR10, HLG |
| Size | 65" | 65" |
| Type | OLED evo | Full Array LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 120Hz | 120Hz (native) |
| Brightness (nits) | 1300 | 1300 |
| Smart TV | ||
| Os | webOS 24 | Google TV |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa, Apple AirPlay 2 |
| Processor | ||
| Chipset | α9 Gen 7 AI Processor 4K | Cognitive Processor XR |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 3 | 2 |
| HDMI ports | 4 | 4 |
Want to compare a third product?
Add another product for a 3-way comparison.
Related Comparisons
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.
Explore more in tvs, see all LG products or all Sony products. View full details for the LG C4 65" or the Sony X90L 65".