Accurately compare physical screen sizes, pixel densities (PPI), viewing distance thresholds, and aspect ratios between any two monitors.
| Parameter | 27" Quad HD (1440p) | 27" 4K Ultra HD |
|---|---|---|
| Pixel Density | 109 PPI | 163 PPI |
| Native Resolution | 2560 × 1440 | 3840 × 2160 |
| Refresh Rate | 144Hz | 60Hz |
| Panel Type | IPS | IPS |
| Total Pixels | 3.69 MP | 8.29 MP |
| Width × Height | 23.5" × 13.2" (59.8 × 33.6 cm) | 23.5" × 13.2" (59.8 × 33.6 cm) |
| Snellen 20/20 Visual Acuity Distance | ≥ 32" (81 cm) | ≥ 21" (53 cm) |
| Aspect Ratio | 16:9 | 16:9 |
Monitor Tester does not declare: "Monitor A is better". Visual display evaluation involves inherent engineering trade-offs (e.g. OLED infinite contrast vs IPS color consistency and longevity vs Fast-IPS motion response). The user decides which monitor best matches their specific visual requirements and ambient environment.
Record your real-world visual observations side-by-side.
