LG B4 55" vs Sony X85K 65" (LED)
The Verdict
LG's B4 leverages OLED technology to deliver superior contrast, perfect blacks, and exceptional picture quality at 1100 nits brightness with Dolby Vision IQ support. Sony's X85K compensates with a larger 65-inch Direct LED panel, though its 700-nit brightness and IPS panel result in limited viewing angles and less vibrant HDR performance. Gaming performance heavily favors the LG with 1ms input lag versus Sony's 10ms, plus superior VRR responsiveness. Audio-wise, LG provides 40W output compared to Sony's 20W. However, Sony costs $200 less and offers more screen real estate for casual viewing and sports. The LG B4 wins decisively for movie enthusiasts, competitive gamers, and those prioritizing image quality, making it the stronger overall choice despite the premium pricing.
Who Should Buy
Buy the LG B4 55" if…
- →Lowest-cost entry into LG's OLED lineup with the same perfect blacks
- →All four HDMI ports with VRR and ALLM at 4K@120Hz for gaming
- →Dolby Vision and Dolby Atmos at an entry OLED price
Buy the Sony X85K 65" (LED) if…
- →120Hz with VRR at $999 makes it a capable mid-range gaming TV
- →Wide viewing angles from IPS panel suit family viewing
- →Dolby Vision and Dolby Atmos for full HDR support
Category Scores
Pros & Cons
LG B4 55"
Pros
- Lowest-cost entry into LG's OLED lineup with the same perfect blacks
- All four HDMI ports with VRR and ALLM at 4K@120Hz for gaming
- Dolby Vision and Dolby Atmos at an entry OLED price
- webOS 24 is one of the best smart TV interfaces available
Cons
- Only two HDMI 2.1 ports — the other two are HDMI 2.0 (limited to 4K@60Hz)
- α8 processor is noticeably weaker than the C4's α9 for upscaling and processing
- Lower peak brightness than the C4 or G4 — HDR highlights lack some punch
- No Wi-Fi 6, which limits wireless bandwidth in crowded network environments
- OLED burn-in risk remains a concern for heavy static-content users
Sony X85K 65" (LED)
Pros
- 120Hz with VRR at $999 makes it a capable mid-range gaming TV
- Wide viewing angles from IPS panel suit family viewing
- Dolby Vision and Dolby Atmos for full HDR support
- Sony X1 processor handles upscaling and motion well
- Google TV platform with Chromecast built-in
Cons
- IPS panel has poor black levels — contrast is a weakness
- No local dimming — black uniformity suffers in dark scenes
- 700 nits brightness is modest for HDR performance
- 20W speakers need external audio support
- Bluetooth 4.2 is dated for a 2022 TV
Full Specifications
| Spec | LG B4 55" | Sony X85K 65" (LED) |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 41.9 lbs | 43.2 lbs |
| Dimensions (w/ stand) | 48.4 x 32.1 x 10.5 inches | 57.1 x 35.8 x 13.4 inches |
| Dimensions | — | 57.1 x 33.1 x 3.0 inches |
| Audio | ||
| Output (watts) | 40 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 10 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | Dolby Vision, HDR10, HLG |
| Size | 55" | 65" |
| Type | OLED | Direct LED (IPS panel) |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 1100 | 700 |
| Smart TV | ||
| Os | webOS 24 | Google TV |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Processor | ||
| Chipset | α8 Gen 7 AI Processor 4K | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | 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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