AOC U27G4R 27" vs Dell S2725QS
Side-by-side comparison of viewing distance, PPI, and specifications
Category Ranking
Pixel Density (PPI)67in category
AOC U27G4R 27"163 PPI #20
Dell S2725QS163 PPI #20
93 PPI224 PPI
HDR Peak Brightness67in category
AOC U27G4R 27"400 nits #51
Dell S2725QS350 nits #61
250 nits2000 nits
DCI-P3 Color Gamut63in category
AOC U27G4R 27"95.9% #47
Dell S2725QS95% #48
79%100%
Refresh Rate
AOC U27G4R 27"160 Hz
Dell S2725QS120 Hz
StandardHighUltra
Summary
- Sharpness: identical — Both screens are retina at 65cm with identical pixel density (163 PPI). No difference in sharpness.
- Brightness: comparable — Both screens offer similar brightness (400 vs 350 nits SDR). Neither has a meaningful advantage for outdoor use.
Key Differences
| Specification | AOC U27G4R 27" | Dell S2725QS |
|---|---|---|
| Refresh Rate | 160 Hz | 120 Hz |
| SDR Brightness | 400 nits | 350 nits |
| HDR Peak Brightness | 400 nits | 350 nits |
| Color Gamut | sRGB 124.7% · DCI-P3 95.9% · Adobe RGB 93.4% | sRGB 99% · DCI-P3 95% |
| Contrast Ratio | 1:1,000 | 1:1,500 |
| Year | 2024 | 2025 |
All specifications
| Specification | AOC U27G4R 27" 2024 | Dell S2725QS 2025 |
|---|---|---|
| Screen Size | 27" | 27" |
| Resolution | 3840×2160 | 3840×2160 |
| Pixel Density (PPI) | 163 | 163 |
| Optimal Viewing Distance | 54cm | 54cm |
| Panel Type | IPS | IPS |
| Viewing Angle | 178° | 178° |
| Aspect Ratio | 16:9 | 16:9 |
| Refresh Rate | 160 Hz (Better) | 120 Hz |
| Variable Refresh Rate (VRR) | G-SYNC Compatible | FreeSync Premium |
| Response Time | 0.5 ms MPRT | 5 ms GTG |
| HDR Certification | DisplayHDR 400 | None |
| SDR Brightness | 400 nits (Better) | 350 nits |
| HDR Peak Brightness | 400 nits (Better) | 350 nits |
| Contrast Ratio | 1:1,000 | 1:1,500 (Better) |
| Ports | 2x HDMI · 1x DP · USB Hub | 2x HDMI · 1x DP |
| Color Gamut | sRGB 124.7% · DCI-P3 95.9% · Adobe RGB 93.4% (Better) | sRGB 99% · DCI-P3 95% |
| Year | 2024 | 2025 (Better) |
Frequently Asked Questions
Which has better PPI: AOC U27G4R 27" or Dell S2725QS?
Both have 163 PPI.
Which has a closer optimal viewing distance?
Both require 54cm for retina quality.
Related Comparisons
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs AOC U27G4R 27" 2024 · 163 PPI · 27" · 160 Hz
Alienware AW2725DF 27" 2024 · 110 PPI · 26.7" · 360 Hz
vs Dell S2725QS 2025 · 163 PPI · 27" · 120 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs AOC U27G4R 27" 2024 · 163 PPI · 27" · 160 Hz
Alienware AW3225QF 32" 2024 · 139 PPI · 31.6" · 240 Hz
vs Dell S2725QS 2025 · 163 PPI · 27" · 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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