LG QNED85 55" vs Sony X90K 65" (Full Array LED)
The Verdict
LG's QNED85 delivers excellent quantum dot performance at a compelling $799 price point, featuring 700 nits brightness, QNED technology for enhanced color accuracy, and snappy 7ms gaming response times. Sony's X90K commands premium positioning with its larger 65-inch display, significantly brighter 1200 nits full-array LED panel, and superior contrast control through independent backlight zones,critical advantages for dark room viewing and HDR content. Both support 120Hz refresh rates, VRR, ALLM, and comprehensive HDR standards with Dolby Atmos audio. Gaming performance is nearly identical (7ms vs 8ms input lag). However, Sony's full-array dimming and brightness advantage justify the $300 premium for enthusiasts prioritizing picture quality. LG's QNED85 remains the smarter choice for budget-conscious buyers seeking excellent all-around performance without sacrificing gaming capabilities. Choose Sony if maximum contrast and brightness matter; choose LG for value-driven gaming and everyday viewing.
Who Should Buy
Buy the LG QNED85 55" if…
- →120Hz with VRR and ALLM provides a solid mid-range gaming TV
- →Dolby Vision and Dolby Atmos for full HDR ecosystem support
- →Quantum Dot + NanoCell produces wider color gamut than basic LCD
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 QNED85 55"
Pros
- 120Hz with VRR and ALLM provides a solid mid-range gaming TV
- Dolby Vision and Dolby Atmos for full HDR ecosystem support
- Quantum Dot + NanoCell produces wider color gamut than basic LCD
- Four HDMI ports (2x HDMI 2.1) handle multiple devices
- α7 Gen6 AI processor upscales and enhances SDR content well
Cons
- IPS panel still has mediocre contrast — blacks look grey
- 700 nits is modest — HDR highlights don't pop like Mini-LED
- 20W speakers are inadequate — soundbar strongly recommended
- QNED branding is confusing — this is not Mini-LED despite the name
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 QNED85 55" | Sony X90K 65" (Full Array LED) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 300mm | 300 x 300mm |
| Weight | 32.4 lbs | 46.3 lbs |
| Dimensions | 48.4 x 28.1 x 2.1 inches | 57.2 x 33.1 x 2.7 inches |
| Dimensions (w/ stand) | 48.4 x 30.4 x 9.4 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 | 55" | 65" |
| Type | QNED (Quantum Dot + NanoCell IPS LCD) | Full Array LED (VA LCD) |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 700 | 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 TCL 5-Series S555 65" (QLED)
- Sony X90K 65" (Full Array LED) vs Sony X90L 65"
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 QNED85 55" or the Sony X90K 65" (Full Array LED).

