Apple iPhone 16 Pro Max vs Xiaomi Xiaomi 15 Ultra
Side-by-side comparison of viewing distance, PPI, and specifications
Xiaomi Xiaomi 15 Ultra
6.73" · 1440×3200 · AMOLED
Optimal Viewing Distance 17cm
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Category Ranking
Pixel Density (PPI)28in category
Apple iPhone 16 Pro Max458 PPI #17
Xiaomi Xiaomi 15 Ultra521 PPI #1
368 PPI521 PPI
HDR Peak Brightness28in category
Apple iPhone 16 Pro Max2000 nits #25
Xiaomi Xiaomi 15 Ultra3200 nits #5
2000 nits4500 nits
DCI-P3 Color Gamut28in category
Apple iPhone 16 Pro Max100% #1
Xiaomi Xiaomi 15 Ultra100% #1
100%100%
Refresh Rate
Apple iPhone 16 Pro Max120 Hz
Xiaomi Xiaomi 15 Ultra120 Hz
StandardHighUltra
Summary
- Sharpness: no visible difference — Both screens exceed the retina threshold at 30cm. The Xiaomi Xiaomi 15 Ultra has 12% higher pixel density (521 vs 458 PPI), but this only becomes visible below 17cm.
- Brightness: advantage Apple iPhone 16 Pro Max — The Apple iPhone 16 Pro Max is 25% brighter in SDR (1000 vs 800 nits), a noticeable difference for outdoor readability. HDR peak: 2000 vs 3200 nits.
Key Differences
| Specification | Apple iPhone 16 Pro Max | Xiaomi Xiaomi 15 Ultra |
|---|---|---|
| Screen Size | 6.9" | 6.73" |
| SDR Brightness | 1000 nits | 800 nits |
| Contrast Ratio | 1:2,000,000 | 1:1,000,000 |
| Resolution | 1320×2868 | 1440×3200 |
| Pixel Density (PPI) | 458 | 521 |
| Optimal Viewing Distance | 19cm | 17cm |
| HDR Peak Brightness | 2000 nits | 3200 nits |
| Year | 2024 | 2025 |
All specifications
| Specification | Apple iPhone 16 Pro Max 2024 | Xiaomi Xiaomi 15 Ultra 2025 |
|---|---|---|
| Screen Size | 6.9" (Better) | 6.73" |
| Resolution | 1320×2868 | 1440×3200 (Better) |
| Pixel Density (PPI) | 458 | 521 (Better) |
| Optimal Viewing Distance | 19cm | 17cm (Better) |
| Panel Type | OLED | AMOLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 110:239 | 9:20 |
| 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 | 1000 nits (Better) | 800 nits |
| HDR Peak Brightness | 2000 nits | 3200 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 Pro Max or Xiaomi Xiaomi 15 Ultra?
The Xiaomi Xiaomi 15 Ultra has 521 PPI compared to 458 PPI for the Apple iPhone 16 Pro Max.
Which has a closer optimal viewing distance?
The Xiaomi Xiaomi 15 Ultra requires 17cm vs 19cm for the Apple iPhone 16 Pro Max to reach retina quality.
Related Comparisons
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 Xiaomi Xiaomi 15 Ultra 2025 · 521 PPI · 6.73" · 120 Hz
Apple iPhone 16 Plus 2024 · 460 PPI · 6.7" · 60 Hz
vs Apple iPhone 16 Pro Max 2024 · 458 PPI · 6.9" · 120 Hz
Apple iPhone 16 Plus 2024 · 460 PPI · 6.7" · 60 Hz
vs Xiaomi Xiaomi 15 Ultra 2025 · 521 PPI · 6.73" · 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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