LG C4 77" vs TCL QM7K 65"
Side-by-side comparison of viewing distance, PPI, and specifications
| Specification | LG C4 77" 2024 | TCL QM7K 65" 2025 |
|---|---|---|
| Screen Size | 77" (Better) | 65" |
| Resolution | 3840×2160 | 3840×2160 |
| Pixel Density (PPI) | 57 | 68 (Better) |
| Optimal Viewing Distance | 1.5m | 1.3m (Better) |
| Panel Type | OLED | Mini-LED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 144 Hz | 144 Hz |
| Variable Refresh Rate (VRR) | FreeSync Premium | FreeSync Premium Pro |
| Response Time | 0.1 ms GTG (Better) | 6 ms GTG |
| HDR Certification | None | None |
| SDR Brightness | 296 nits | 550 nits (Better) |
| HDR Peak Brightness | 1049 nits | 1700 nits (Better) |
| Contrast Ratio | 1:1,000,000 (Better) | 1:5,000 |
| Ports | 4x HDMI · 0x DP | 4x HDMI · 0x DP |
| Color Gamut | sRGB 100% · DCI-P3 98.7% · Adobe RGB 96% (Better) | sRGB 100% · DCI-P3 97% · Adobe RGB 90% |
| Year | 2024 | 2025 (Better) |
Summary
The TCL QM7K 65" has higher pixel density (68 PPI), making it sharper at close range.
The TCL QM7K 65" allows sitting closer (1.3m) while maintaining retina quality.
The LG C4 77" offers a larger 77" display for more immersive viewing.
Frequently Asked Questions
Which has better PPI: LG C4 77" or TCL QM7K 65"?
The TCL QM7K 65" has 68 PPI compared to 57 PPI for the LG C4 77".
Which has a closer optimal viewing distance?
The TCL QM7K 65" requires 1.3m vs 1.5m for the LG C4 77" to reach retina quality.
Methodology & Sources
Formula: Retina distance (cm) = 3438 / PPI. Displayed values are rounded for readability.
Sources: Official manufacturer spec sheets and product pages. Specs are normalized before comparisons.
Comparison winners are calculated metric by metric (higher is better for most specs; lower is better for distance/response time).
Last updated:
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