Apple iPhone 16 vs Samsung Galaxy S25 Ultra
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
Apple iPhone 16461 PPI #13
Samsung Galaxy S25 Ultra498 PPI #6
368 PPI521 PPI
HDR Peak Brightness28in category
Apple iPhone 162000 nits #25
Samsung Galaxy S25 Ultra2600 nits #17
2000 nits4500 nits
DCI-P3 Color Gamut28in category
Apple iPhone 16100% #1
Samsung Galaxy S25 Ultra100% #1
100%100%
Refresh Rate
Apple iPhone 1660 Hz
Samsung Galaxy S25 Ultra120 Hz
StandardHighUltra
Summary
- Sharpness: no visible difference — Both screens exceed the retina threshold at 30cm. The Samsung Galaxy S25 Ultra has 7% higher pixel density (498 vs 461 PPI), but this only becomes visible below 18cm.
- Brightness: advantage Apple iPhone 16 — The Apple iPhone 16 is 25% brighter in SDR (1000 vs 800 nits), a noticeable difference for outdoor readability. HDR peak: 2000 vs 2600 nits.
Key Differences
| Specification | Apple iPhone 16 | Samsung Galaxy S25 Ultra |
|---|---|---|
| SDR Brightness | 1000 nits | 800 nits |
| Contrast Ratio | 1:2,000,000 | 1:1,000,000 |
| Screen Size | 6.1" | 6.9" |
| Resolution | 1179×2556 | 1440×3120 |
| Pixel Density (PPI) | 461 | 498 |
| Optimal Viewing Distance | 19cm | 18cm |
| Refresh Rate | 60 Hz | 120 Hz |
| HDR Peak Brightness | 2000 nits | 2600 nits |
| Year | 2024 | 2025 |
All specifications
| Specification | Apple iPhone 16 2024 | Samsung Galaxy S25 Ultra 2025 |
|---|---|---|
| Screen Size | 6.1" | 6.9" (Better) |
| Resolution | 1179×2556 | 1440×3120 (Better) |
| Pixel Density (PPI) | 461 | 498 (Better) |
| Optimal Viewing Distance | 19cm | 18cm (Better) |
| Panel Type | OLED | AMOLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 131:284 | 6:13 |
| Refresh Rate | 60 Hz | 120 Hz (Better) |
| Variable Refresh Rate (VRR) | None | None |
| Response Time | 1 ms GTG | 1 ms GTG |
| HDR Certification | None | None |
| SDR Brightness | 1000 nits (Better) | 800 nits |
| HDR Peak Brightness | 2000 nits | 2600 nits (Better) |
| Contrast Ratio | 1:2,000,000 (Better) | 1:1,000,000 |
| Ports | USB-C | USB-C |
| Color Gamut | sRGB 100% · DCI-P3 100% | sRGB 100% · DCI-P3 100% |
| Year | 2024 | 2025 (Better) |
Frequently Asked Questions
Which has better PPI: Apple iPhone 16 or Samsung Galaxy S25 Ultra?
The Samsung Galaxy S25 Ultra has 498 PPI compared to 461 PPI for the Apple iPhone 16.
Which has a closer optimal viewing distance?
The Samsung Galaxy S25 Ultra requires 18cm vs 19cm for the Apple iPhone 16 to reach retina quality.
Related Comparisons
Apple iPhone 16 2024 · 461 PPI · 6.1" · 60 Hz
vs Apple iPhone 16 Plus 2024 · 460 PPI · 6.7" · 60 Hz
Apple iPhone 16 2024 · 461 PPI · 6.1" · 60 Hz
vs Apple iPhone 16 Pro 2024 · 458 PPI · 6.3" · 120 Hz
Apple iPhone 16 2024 · 461 PPI · 6.1" · 60 Hz
vs Apple iPhone 16 Pro Max 2024 · 458 PPI · 6.9" · 120 Hz
Apple iPhone 16 2024 · 461 PPI · 6.1" · 60 Hz
vs Apple iPhone 17 2025 · 458 PPI · 6.3" · 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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