LG G4 77" vs Sony X90K 65" (Full Array LED)
The Verdict
LG's G4 OLED represents premium television technology with its MLA panel delivering 2100 nits peak brightness, perfect blacks from pixel-level control, and superior contrast that full-array LED simply cannot match. Sony's X90K offers solid mid-range performance with full-array backlighting providing respectable 1200-nit brightness and good contrast for the price, though blooming and uniformity issues are inherent to the technology. Gaming advantages clearly favor LG with 1ms input lag versus Sony's 8ms, plus superior motion handling. Audio-wise, LG's 4.2ch 60W Dolby Atmos system substantially outperforms Sony's basic 2.0ch 20W setup. Sony compensates with value,at $1099 for 65 inches versus LG's $3299 for 77 inches, the price-per-inch difference is dramatic. For content consumption, sports, and gaming, LG's picture quality is demonstrably superior. Budget-conscious buyers seeking adequate 4K performance should consider Sony; serious enthusiasts demanding cinematic excellence should invest in the G4.
Who Should Buy
Buy the LG G4 77" if…
- →MLA panel pushes OLED brightness to 2,100+ nits — closes the gap with Mini-LED
- →α11 AI processor is LG's most powerful, with superior upscaling and AI enhancements
- →Gallery design meant to hang flush to the wall with no gap
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 G4 77"
Pros
- MLA panel pushes OLED brightness to 2,100+ nits — closes the gap with Mini-LED
- α11 AI processor is LG's most powerful, with superior upscaling and AI enhancements
- Gallery design meant to hang flush to the wall with no gap
- 77-inch screen delivers an immersive cinematic experience at typical viewing distances
- Best overall OLED picture quality available in a consumer TV as of 2024
Cons
- At $3,299 it is a very significant investment compared to the C4
- Gallery design requires flush wall mounting — stand sold separately
- Still susceptible to OLED burn-in with prolonged static imagery
- 77 inches is too large for many rooms and viewing distances under 10 feet
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 G4 77" | Sony X90K 65" (Full Array LED) |
|---|---|---|
| Body | ||
| VESA mount | 400 x 200mm | 300 x 300mm |
| Weight | 73.4 lbs | 46.3 lbs |
| Dimensions (w/ stand) | 68.0 x 43.1 x 12.8 inches | 57.2 x 35.3 x 12.0 inches |
| Dimensions | — | 57.2 x 33.1 x 2.7 inches |
| Audio | ||
| Output (watts) | 60 | 20 |
| Speakers | 4.2ch | 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 | 77" | 65" |
| Type | OLED evo MLA (Micro Lens Array) | Full Array LED (VA LCD) |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 2100 | 1200 |
| Smart TV | ||
| Os | webOS 24 | Google TV |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Processor | ||
| Chipset | α11 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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