LG B4 65" vs Samsung QN85D 65"
Side-by-side comparison of viewing distance, PPI, and specifications
Category Ranking
Pixel Density (PPI)28in category
LG B4 65"68 PPI #8
Samsung QN85D 65"68 PPI #8
57 PPI118 PPI
HDR Peak Brightness28in category
LG B4 65"677 nits #27
Samsung QN85D 65"1243 nits #22
677 nits5000 nits
DCI-P3 Color Gamut28in category
LG B4 65"99% #4
Samsung QN85D 65"94% #28
94%100%
Refresh Rate
LG B4 65"120 Hz
Samsung QN85D 65"120 Hz
StandardHighUltra
Summary
- Sharpness: identical — Both screens are retina at 250cm with identical pixel density (68 PPI). No difference in sharpness.
- Brightness: advantage Samsung QN85D 65" — The Samsung QN85D 65" is 111% brighter in SDR (790 vs 374 nits), a noticeable difference for outdoor readability. HDR peak: 1243 vs 677 nits.
Key Differences
| Specification | LG B4 65" | Samsung QN85D 65" |
|---|---|---|
| Response Time | 0.1 ms GTG | 6 ms GTG |
| Contrast Ratio | 1:1,000,000 | 1:5,500 |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 97% | sRGB 99% · DCI-P3 94% · Adobe RGB 87% |
| SDR Brightness | 374 nits | 790 nits |
| HDR Peak Brightness | 677 nits | 1243 nits |
All specifications
| Specification | LG B4 65" 2024 | Samsung QN85D 65" 2024 |
|---|---|---|
| Screen Size | 65" | 65" |
| Resolution | 3840×2160 | 3840×2160 |
| Pixel Density (PPI) | 68 | 68 |
| Optimal Viewing Distance | 1.3m | 1.3m |
| Panel Type | OLED | Mini-LED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 120 Hz | 120 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 | 374 nits | 790 nits (Better) |
| HDR Peak Brightness | 677 nits | 1243 nits (Better) |
| Contrast Ratio | 1:1,000,000 (Better) | 1:5,500 |
| Ports | 4x HDMI | 4x HDMI |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 97% (Better) | sRGB 99% · DCI-P3 94% · Adobe RGB 87% |
| Year | 2024 | 2024 |
Frequently Asked Questions
Which has better PPI: LG B4 65" or Samsung QN85D 65"?
Both have 68 PPI.
Which has a closer optimal viewing distance?
Both require 1.3m for retina quality.
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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).
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