LG OLED55B5PUA vs TCL 75QM6K
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Choosing between the LG OLED55B5PUA and TCL 75QM6K? 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 OLED55B5PUA scores higher in form factor, room fit, future-proofing. The TCL 75QM6K leads in value. They score similarly in video quality, gaming performance, ease of use.
On the display side, the LG OLED55B5PUA uses a WOLED panel while the TCL 75QM6K uses VA, and screen sizes differ at 55" vs 75". 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 OLED55B5PUA holds an advantage across more performance dimensions, but the TCL 75QM6K 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 OLED55B5PUA is the stronger choice — it leads in 3 of 7 scored dimensions. The TCL 75QM6K makes more sense if you prioritize the 1 dimension where it leads.
Performance Overview
Scores based on specs and category benchmarks (0–100 scale)
Detailed Specifications
| Specification | ||
|---|---|---|
| Price | N/A | N/A |
| Screen Size | 55" | 75" |
| Resolution | 4K | 4K |
| Panel Type | WOLED | VA |
| Backlight Type | none | mini-LED |
| Native Contrast Ratio | Infinite | — |
| HDR Formats | HDR10, Dolby Vision, HLG | HDR10, Dolby Vision, HLG |
| Refresh Rate | 120Hz | 144Hz |
| VRR | Yes | Yes |
| VRR Type | FreeSync+G-Sync | — |
| ALLM | Yes | No |
| Smart OS | webOS | Google TV |
| Speaker Config | 2.0 | — |
| Dolby Atmos (Speakers) | Yes | Yes |
| HDMI Total Ports | 4 | 4 |
| HDMI 2.1 Ports | 4 | 0 |
| eARC Port | Yes | Yes |
| VESA Pattern | 300x200 | 300x300 |
| Processor | α8 AI Processor 4K Gen2 | — |
| Model Year | — | — |
Key Differences
- Panel Type: LG OLED55B5PUA at WOLED vs TCL 75QM6K 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.
- Smart OS: LG OLED55B5PUA at webOS vs TCL 75QM6K at Google TV
- USB Type: LG OLED55B5PUA at 2ea (v 2.0) vs TCL 75QM6K at 1 x USB 2.0, 1 x USB 3.0
- Weight (w/ Stand): LG OLED55B5PUA at 32lbs vs TCL 75QM6K at 51.8lbs
- Weight (w/o Stand): LG OLED55B5PUA at 31.5lbs vs TCL 75QM6K at 50.7lbs
Which Should You Choose?
Choose LG OLED55B5PUA if you want:
- + better hdmi 2.1 ports — hDMI 2
- + better depth (w/ stand)
- + lighter weight for easier placement
- + lighter weight for easier placement
Choose TCL 75QM6K if you want:
- + larger 75" screen for more immersive viewing
- + better refresh rate — 120 Hz provides noticeably smoother motion for sports and gaming
- + better native refresh rate
See Where These Rank
Check our editorial rankings to see how LG OLED55B5PUA and TCL 75QM6K 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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