LG B4 65" vs Sony Bravia 9 75"
Side-by-side comparison of viewing distance, PPI, and specifications
Category Ranking
Pixel Density (PPI)28in category
LG B4 65"68 PPI #8
Sony Bravia 9 75"59 PPI #24
57 PPI118 PPI
HDR Peak Brightness28in category
LG B4 65"677 nits #27
Sony Bravia 9 75"2199 nits #9
677 nits5000 nits
DCI-P3 Color Gamut28in category
LG B4 65"99% #4
Sony Bravia 9 75"96% #24
94%100%
Refresh Rate
LG B4 65"120 Hz
Sony Bravia 9 75"120 Hz
StandardHighUltra
Summary
- Sharpness: no visible difference — Both screens exceed the retina threshold at 250cm. The LG B4 65" has 16% higher pixel density (68 vs 59 PPI), but this only becomes visible below 129cm.
- Brightness: advantage Sony Bravia 9 75" — The Sony Bravia 9 75" is 330% brighter in SDR (1609 vs 374 nits), a noticeable difference for outdoor readability. HDR peak: 2199 vs 677 nits.
Key Differences
| Specification | LG B4 65" | Sony Bravia 9 75" |
|---|---|---|
| Pixel Density (PPI) | 68 | 59 |
| Optimal Viewing Distance | 1.3m | 1.5m |
| Response Time | 0.1 ms GTG | 3 ms GTG |
| Contrast Ratio | 1:1,000,000 | 1:5,000 |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 97% | sRGB 100% · DCI-P3 96% · Adobe RGB 89% |
| Screen Size | 65" | 75" |
| SDR Brightness | 374 nits | 1609 nits |
| HDR Peak Brightness | 677 nits | 2199 nits |
All specifications
| Specification | LG B4 65" 2024 | Sony Bravia 9 75" 2024 |
|---|---|---|
| Screen Size | 65" | 75" (Better) |
| Resolution | 3840×2160 | 3840×2160 |
| Pixel Density (PPI) | 68 (Better) | 59 |
| Optimal Viewing Distance | 1.3m (Better) | 1.5m |
| 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 | None |
| Response Time | 0.1 ms GTG (Better) | 3 ms GTG |
| HDR Certification | None | None |
| SDR Brightness | 374 nits | 1609 nits (Better) |
| HDR Peak Brightness | 677 nits | 2199 nits (Better) |
| Contrast Ratio | 1:1,000,000 (Better) | 1:5,000 |
| Ports | 4x HDMI | 4x HDMI |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 97% (Better) | sRGB 100% · DCI-P3 96% · Adobe RGB 89% |
| Year | 2024 | 2024 |
Frequently Asked Questions
Which has better PPI: LG B4 65" or Sony Bravia 9 75"?
The LG B4 65" has 68 PPI compared to 59 PPI for the Sony Bravia 9 75".
Which has a closer optimal viewing distance?
The LG B4 65" requires 1.3m vs 1.5m for the Sony Bravia 9 75" to reach retina quality.
Related Comparisons
Hisense U7N 75" 2024 · 59 PPI · 75" · 144 Hz
vs LG B4 65" 2024 · 68 PPI · 65" · 120 Hz
Hisense U7N 75" 2024 · 59 PPI · 75" · 144 Hz
vs Sony Bravia 9 75" 2024 · 59 PPI · 75" · 120 Hz
Hisense U8N 55" 2024 · 80 PPI · 55" · 144 Hz
vs LG B4 65" 2024 · 68 PPI · 65" · 120 Hz
Hisense U8N 55" 2024 · 80 PPI · 55" · 144 Hz
vs Sony Bravia 9 75" 2024 · 59 PPI · 75" · 120 Hz
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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