Apple MacBook Air 15" M4 vs Dell XPS 13 OLED (9345)
Side-by-side comparison of viewing distance, PPI, and specifications
Advantages of Apple MacBook Air 15" M4
| Specification | Apple MacBook Air 15" M4 | Dell XPS 13 OLED (9345) |
|---|---|---|
| Screen Size | 15.3" | 13.4" |
| Resolution | 2880×1864 | 2880×1800 |
| SDR Brightness | 500 nits | 400 nits |
| HDR Peak Brightness | 600 nits | 500 nits |
| Year | 2025 | 2024 |
Advantages of Dell XPS 13 OLED (9345)
| Specification | Apple MacBook Air 15" M4 | Dell XPS 13 OLED (9345) |
|---|---|---|
| Pixel Density (PPI) | 224 | 254 |
| Optimal Viewing Distance | 39cm | 35cm |
| Response Time | 20 ms GTG | 0.2 ms GTG |
| Contrast Ratio | 1:1,600 | 1:1,000,000 |
| USB-C Power Delivery | 70 W | 130 W |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 88% | sRGB 100% · DCI-P3 100% · Adobe RGB 95% |
Identical
| Specification | Apple MacBook Air 15" M4 | Dell XPS 13 OLED (9345) |
|---|---|---|
| Panel Type | IPS | OLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:10 | 16:10 |
| Refresh Rate | 60 Hz | 60 Hz |
| Variable Refresh Rate (VRR) | None | None |
| HDR Certification | None | DisplayHDR True Black 500 |
| Ports | USB-C | USB-C |
Summary
Sharpness: no visible difference
Both screens exceed the retina threshold at 50cm. The Dell XPS 13 OLED (9345) has 12% higher pixel density (254 vs 224 PPI), but this only becomes visible below 35cm.
Brightness: advantage Apple MacBook Air 15" M4
The Apple MacBook Air 15" M4 is 25% brighter in SDR (500 vs 400 nits), a noticeable difference for outdoor readability. HDR peak: 600 vs 500 nits.
All specifications
| Specification | Apple MacBook Air 15" M4 2025 | Dell XPS 13 OLED (9345) 2024 |
|---|---|---|
| Screen Size | 15.3" (Better) | 13.4" |
| Resolution | 2880×1864 (Better) | 2880×1800 |
| Pixel Density (PPI) | 224 | 254 (Better) |
| Optimal Viewing Distance | 39cm | 35cm (Better) |
| Panel Type | IPS | OLED |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:10 | 16:10 |
| Refresh Rate | 60 Hz | 60 Hz |
| Variable Refresh Rate (VRR) | None | None |
| Response Time | 20 ms GTG | 0.2 ms GTG (Better) |
| HDR Certification | None | DisplayHDR True Black 500 |
| SDR Brightness | 500 nits (Better) | 400 nits |
| HDR Peak Brightness | 600 nits (Better) | 500 nits |
| Contrast Ratio | 1:1,600 | 1:1,000,000 (Better) |
| Ports | USB-C | USB-C |
| USB-C Power Delivery | 70 W | 130 W (Better) |
| Color Gamut | sRGB 100% · DCI-P3 99% · Adobe RGB 88% | sRGB 100% · DCI-P3 100% · Adobe RGB 95% (Better) |
| Year | 2025 (Better) | 2024 |
Frequently Asked Questions
Which has better PPI: Apple MacBook Air 15" M4 or Dell XPS 13 OLED (9345)?
The Dell XPS 13 OLED (9345) has 254 PPI compared to 224 PPI for the Apple MacBook Air 15" M4.
Which has a closer optimal viewing distance?
The Dell XPS 13 OLED (9345) requires 35cm vs 39cm for the Apple MacBook Air 15" M4 to reach retina quality.
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).
Last updated:
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