Samsung Galaxy S25 Ultra vs Samsung Galaxy Z Flip7
Side-by-side comparison of viewing distance, PPI, and specifications
Samsung Galaxy S25 Ultra
6.9" · 1440×3120 · AMOLED
Optimal Viewing Distance 18cm
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Category Ranking
Pixel Density (PPI)28in category
Samsung Galaxy S25 Ultra498 PPI #6
Samsung Galaxy Z Flip7397 PPI #27
368 PPI521 PPI
HDR Peak Brightness28in category
Samsung Galaxy S25 Ultra2600 nits #17
Samsung Galaxy Z Flip72600 nits #17
2000 nits4500 nits
DCI-P3 Color Gamut28in category
Samsung Galaxy S25 Ultra100% #1
Samsung Galaxy Z Flip7100% #1
100%100%
Refresh Rate
Samsung Galaxy S25 Ultra120 Hz
Samsung Galaxy Z Flip7120 Hz
StandardHighUltra
Summary
- Sharpness: no visible difference — Both screens exceed the retina threshold at 30cm. The Samsung Galaxy S25 Ultra has 25% higher pixel density (498 vs 397 PPI), but this only becomes visible below 18cm.
- Brightness: comparable — Both screens offer similar brightness (800 vs 700 nits SDR). Neither has a meaningful advantage for outdoor use.
Key Differences
| Specification | Samsung Galaxy S25 Ultra | Samsung Galaxy Z Flip7 |
|---|---|---|
| Resolution | 1440×3120 | 1080×2520 |
| Pixel Density (PPI) | 498 | 397 |
| Optimal Viewing Distance | 18cm | 22cm |
| SDR Brightness | 800 nits | 700 nits |
All specifications
| Specification | Samsung Galaxy S25 Ultra 2025 | Samsung Galaxy Z Flip7 2025 |
|---|---|---|
| Screen Size | 6.9" | 6.9" |
| Resolution | 1440×3120 (Better) | 1080×2520 |
| Pixel Density (PPI) | 498 (Better) | 397 |
| Optimal Viewing Distance | 18cm (Better) | 22cm |
| Panel Type | AMOLED | AMOLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 6:13 | 3:7 |
| Refresh Rate | 120 Hz | 120 Hz |
| Variable Refresh Rate (VRR) | None | None |
| Response Time | 1 ms GTG | 1 ms GTG |
| HDR Certification | None | None |
| SDR Brightness | 800 nits (Better) | 700 nits |
| HDR Peak Brightness | 2600 nits | 2600 nits |
| Contrast Ratio | 1:1,000,000 | 1:1,000,000 |
| Ports | USB-C | USB-C |
| Color Gamut | sRGB 100% · DCI-P3 100% | sRGB 100% · DCI-P3 100% |
| Year | 2025 | 2025 |
Frequently Asked Questions
Which has better PPI: Samsung Galaxy S25 Ultra or Samsung Galaxy Z Flip7?
The Samsung Galaxy S25 Ultra has 498 PPI compared to 397 PPI for the Samsung Galaxy Z Flip7.
Which has a closer optimal viewing distance?
The Samsung Galaxy S25 Ultra requires 18cm vs 22cm for the Samsung Galaxy Z Flip7 to reach retina quality.
Related Comparisons
Apple iPhone 16 2024 · 461 PPI · 6.1" · 60 Hz
vs Samsung Galaxy S25 Ultra 2025 · 498 PPI · 6.9" · 120 Hz
Apple iPhone 16 2024 · 461 PPI · 6.1" · 60 Hz
vs Samsung Galaxy Z Flip7 2025 · 397 PPI · 6.9" · 120 Hz
Apple iPhone 16 Plus 2024 · 460 PPI · 6.7" · 60 Hz
vs Samsung Galaxy S25 Ultra 2025 · 498 PPI · 6.9" · 120 Hz
Apple iPhone 16 Plus 2024 · 460 PPI · 6.7" · 60 Hz
vs Samsung Galaxy Z Flip7 2025 · 397 PPI · 6.9" · 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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