LG OLED77G5WUA vs Samsung QN85QN90FAFXZA
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Choosing between the LG OLED77G5WUA and Samsung QN85QN90FAFXZA? Both compete in the TV segment. Here’s how they compare across the specs that matter most for your home theater.
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Looking at overall performance dimensions: The LG OLED77G5WUA scores higher in value, video quality, form factor, room fit. They score similarly in gaming performance, ease of use, future-proofing.
On the display side, the LG OLED77G5WUA uses a WOLED panel while the Samsung QN85QN90FAFXZA uses VA, and screen sizes differ at 77" vs 85". OLED panels produce perfect blacks by turning pixels off entirely. QD-OLED adds a quantum dot layer for wider color. VA panels offer better contrast than IPS but narrower viewing angles. Mini-LED is a backlight technology applied to LCD panels, offering thousands of dimming zones for improved contrast. Bigger isn't always better — it depends on viewing distance. THX recommends a 36-degree viewing angle; SMPTE suggests 30 degrees minimum. Our viewing distance calculator helps find the sweet spot.
The LG OLED77G5WUA holds an advantage across more performance dimensions, but the Samsung QN85QN90FAFXZA may still be the better pick depending on which specs matter most to your setup. See the detailed comparison table below for the full breakdown.
For most home theaters, the LG OLED77G5WUA is the stronger choice — it leads in 4 of 7 scored dimensions. The Samsung QN85QN90FAFXZA makes more sense if budget is the primary constraint.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Screen Size | 77" | 85" |
| Resolution | 4K | 4K |
| Panel Type | WOLED | VA |
| Backlight Type | none | mini-LED |
| Native Contrast Ratio | Infinite | Quantum Mini LED Pro |
| HDR Formats | HDR10, Dolby Vision, HLG | HDR10, HLG |
| Refresh Rate | 120Hz | 120Hz |
| VRR | Yes | Yes |
| VRR Type | FreeSync+G-Sync | FreeSync |
| ALLM | Yes | Yes |
| Smart OS | webOS | Tizen |
| Speaker Config | 4.2 | 4.2.2 |
| Dolby Atmos (Speakers) | Yes | Yes |
| HDMI Total Ports | 4 | 4 |
| HDMI 2.1 Ports | 4 | 4 |
| eARC Port | Yes | No |
| VESA Pattern | 300 x 300 | 600x400 |
| Processor | α11 AI Processor 4K Gen2 | NQ4 AI Gen3 Processor |
| Model Year | 2025 | — |
Key Differences
- Processor: LG OLED77G5WUA at α11 AI Processor 4K Gen2 vs Samsung QN85QN90FAFXZA at NQ4 AI Gen3 Processor
- Series Name: LG OLED77G5WUA at G5 vs Samsung QN85QN90FAFXZA at QN90F
- USB Type: LG OLED77G5WUA at 3ea (v 2.0) vs Samsung QN85QN90FAFXZA at 2 x USB-A
- Panel Type: LG OLED77G5WUA at WOLED vs Samsung QN85QN90FAFXZA at VA. OLED panels produce perfect blacks by turning pixels off entirely. QD-OLED adds a quantum dot layer for wider color. VA panels offer better contrast than IPS but narrower viewing angles. Mini-LED is a backlight technology applied to LCD panels, offering thousands of dimming zones for improved contrast.
- HDR Formats: LG OLED77G5WUA at HDR10, Dolby Vision, HLG vs Samsung QN85QN90FAFXZA at HDR10, HLG. Dolby Vision adds dynamic metadata that adjusts brightness scene-by-scene. HDR10 is the baseline. HDR10+ is Samsung's alternative to Dolby Vision.
Which Should You Choose?
Choose LG OLED77G5WUA if you want:
- + lighter weight for easier placement
- + lighter weight for easier placement
Choose Samsung QN85QN90FAFXZA if you want:
- + larger 85" screen for more immersive viewing
See Where These Rank
Check our editorial rankings to see how LG OLED77G5WUA and Samsung QN85QN90FAFXZA compare to the rest of the field.
Best TV RankingsRelated Calculators
Specifications sourced from manufacturer datasheets and verified against retailer listings. Prices updated hourly from authorized retailers. Scoring uses our open methodology — products are never ranked, promoted, or suppressed based on affiliate commission rates.
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