LG 42LX3QPUA vs Samsung UN50CU8000FXZA
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Choosing between the LG 42LX3QPUA and Samsung UN50CU8000FXZA? Both compete in the TV segment. Here’s how they compare across the specs that matter most for your home theater.
Looking at overall performance dimensions: The LG 42LX3QPUA scores higher in gaming performance, future-proofing. The Samsung UN50CU8000FXZA leads in value, video quality, form factor, room fit. They score similarly in ease of use.
On the display side, the LG 42LX3QPUA uses a WOLED panel while the Samsung UN50CU8000FXZA uses LED, and screen sizes differ at 42" vs 50". 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 Samsung UN50CU8000FXZA holds an advantage across more performance dimensions, but the LG 42LX3QPUA 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 Samsung UN50CU8000FXZA is the stronger choice — it leads in 4 of 7 scored dimensions. The LG 42LX3QPUA makes more sense if you prioritize the 2 dimensions where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
LG 42" Class OLED Flex Smart TV with Bendable Screen 42LX3QPUA
Samsung UN50CU8000FXZA
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | $2,499.99 | N/A |
| Screen Size | 42" | 50" |
| Resolution | 4K | 4K |
| Panel Type | WOLED | LED |
| Backlight Type | none | direct-lit |
| Native Contrast Ratio | Infinite | Mega Contrast |
| HDR Formats | HDR10, HDR10+, HLG | |
| Refresh Rate | 120Hz | 60Hz |
| VRR | Yes | No |
| VRR Type | FreeSync+G-Sync | — |
| ALLM | No | Yes |
| Smart OS | webOS | Tizen |
| Speaker Config | 2.2 | ?Mechanism in TV that outputs audio. Down firing enhances bass by directing low-end toward ground. |
| Dolby Atmos (Speakers) | Yes | No |
| HDMI Total Ports | 4 | 3 |
| HDMI 2.1 Ports | 0 | 0 |
| eARC Port | Yes | No |
| VESA Pattern | — | ?Wall mount size standard (VESA) that supports extending, pivoting, or tilting the TV. |
| Processor | α9 Gen 5 AI Processor 4K | Crystal Processor 4K |
| Model Year | 2023 | 2023 |
Key Differences
- Processor: LG 42LX3QPUA at α9 Gen 5 AI Processor 4K vs Samsung UN50CU8000FXZA at Crystal Processor 4K
- USB Type: LG 42LX3QPUA at 2 (Side) / 1 (Stand) vs Samsung UN50CU8000FXZA at 2
- Panel Type: LG 42LX3QPUA at WOLED vs Samsung UN50CU8000FXZA at LED. 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 42LX3QPUA at vs Samsung UN50CU8000FXZA at HDR10, 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.
- Smart OS: LG 42LX3QPUA at webOS vs Samsung UN50CU8000FXZA at Tizen
Which Should You Choose?
Choose LG 42LX3QPUA if you want:
- + better refresh rate — 120 Hz provides noticeably smoother motion for sports and gaming
- + better native refresh rate
- + better audio power
- + better hdmi total ports
Choose Samsung UN50CU8000FXZA if you want:
- + larger 50" screen for more immersive viewing
See Where These Rank
Check our editorial rankings to see how LG 42LX3QPUA and Samsung UN50CU8000FXZA 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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