LG OLED B3 65" vs Sony X90K 65" (Full Array LED)
The Verdict
LG's OLED B3 delivers superior picture quality with perfect blacks and infinite contrast inherent to OLED technology, while the Sony X90K compensates with substantially brighter peak brightness (1200 nits vs 600 nits), making it better for bright rooms. Both handle gaming excellently with 120Hz refresh rates and near-identical input lag (7ms vs 8ms), plus Dolby Vision and Atmos support. Sony's full array LED approach provides excellent value at $200 less, though it can't match OLED's color accuracy and viewing angles. LG's webOS remains more refined than Google TV for navigating apps. For a dark viewing environment prioritizing cinematic picture quality, the OLED B3 justifies its premium. Budget-conscious buyers in bright spaces should choose the X90K.
Who Should Buy
Buy the LG OLED B3 65" if…
- →Most affordable 65-inch LG OLED at $1,299 — great entry into OLED
- →Perfect blacks and infinite contrast inherent to OLED technology
- →Dolby Vision and Dolby Atmos for cinema-quality HDR experience
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 B3 65"
Pros
- Most affordable 65-inch LG OLED at $1,299 — great entry into OLED
- Perfect blacks and infinite contrast inherent to OLED technology
- Dolby Vision and Dolby Atmos for cinema-quality HDR experience
- 4x HDMI 2.1 ports with 4K@120Hz for gaming
- Wide viewing angles with no color shift
Cons
- Older α7 Gen6 processor — less effective upscaling than C3's α9
- 600 nits peak brightness is dim — struggles in bright rooms
- 20W speakers are weak — a soundbar is essential
- Wi-Fi 5 instead of Wi-Fi 6 on a 2023 model
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 B3 65" | Sony X90K 65" (Full Array LED) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 300 x 300mm |
| Weight | 41.7 lbs | 46.3 lbs |
| Dimensions | 57.0 x 32.8 x 1.8 inches | 57.2 x 33.1 x 2.7 inches |
| Dimensions (w/ stand) | 57.0 x 35.5 x 11.8 inches | 57.2 x 35.3 x 12.0 inches |
| Audio | ||
| Output (watts) | 20 | 20 |
| Speakers | 2.0ch | 2.0ch Acoustic Multi-Audio |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 7 | 8 |
| Display | ||
| HDR | Dolby Vision, HDR10, HLG | Dolby Vision, HDR10, HLG |
| Size | 65" | 65" |
| Type | OLED (WOLED) | Full Array LED (VA LCD) |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 600 | 1200 |
| Smart TV | ||
| Os | webOS 23 | Google TV |
| Voice assistant | LG ThinQ AI, Alexa, Google Assistant | Google Assistant, Alexa |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Ethernet | ||
| Bluetooth | 5.0 | 4.2 |
| USB ports | 2 | 2 |
| HDMI ports | 4 | 4 |
Related Comparisons
- Sony X90K 65" (Full Array LED) vs Vizio P-Series Quantum 65"
- Sony X90K 65" (Full Array LED) vs Vizio OLED 55"
- 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.
Explore more in tvs, see all LG products or all Sony products. View full details for the LG OLED B3 65" or the Sony X90K 65" (Full Array LED).