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Dell S2725QS vs Samsung Odyssey G9 49"

Side-by-side comparison of viewing distance, PPI, and specifications

Dell S2725QS

27" · 3840×2160 · IPS
Optimal Viewing Distance 54cm
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Samsung Odyssey G9 49"

48.7" · 5120×1440 · VA
Optimal Viewing Distance 80cm
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Category Ranking

Pixel Density (PPI)67in category
Dell S2725QS163 PPI #20
Samsung Odyssey G9 49"109 PPI #55
93 PPI224 PPI
HDR Peak Brightness67in category
Dell S2725QS350 nits #61
Samsung Odyssey G9 49"1000 nits #7
250 nits2000 nits
DCI-P3 Color Gamut63in category
Dell S2725QS95% #48
Samsung Odyssey G9 49"95% #48
79%100%
Refresh Rate
Dell S2725QS120 Hz
Samsung Odyssey G9 49"240 Hz
StandardHighUltra

Summary

  • Sharpness: advantage Dell S2725QS — At 65cm, the Dell S2725QS is retina (163 PPI) while the Samsung Odyssey G9 49" is not — you need to sit at least 80cm away for pixel-free viewing.
  • Brightness: advantage Samsung Odyssey G9 49" — The Samsung Odyssey G9 49" is 20% brighter in SDR (420 vs 350 nits), a noticeable difference for outdoor readability. HDR peak: 1000 vs 350 nits.

Key Differences

Specification Dell S2725QS Samsung Odyssey G9 49"
Resolution 3840×2160 5120×1440
Pixel Density (PPI) 163 109
Optimal Viewing Distance 54cm 80cm
Year 2025 2020
Screen Size 27" 48.7"
Refresh Rate 120 Hz 240 Hz
Response Time 5 ms GTG 1 ms GTG
SDR Brightness 350 nits 420 nits
HDR Peak Brightness 350 nits 1000 nits
Contrast Ratio 1:1,500 1:2,500
Color Gamut sRGB 99% · DCI-P3 95% sRGB 125% · DCI-P3 95% · Adobe RGB 92%
All specifications
Specification Dell S2725QS 2025 Samsung Odyssey G9 49" 2020
Screen Size 27" 48.7" (Better)
Resolution 3840×2160 (Better) 5120×1440
Pixel Density (PPI) 163 (Better) 109
Optimal Viewing Distance 54cm (Better) 80cm
Panel Type IPS VA
Viewing Angle 178° 178°
Aspect Ratio 16:9 32:9
Refresh Rate 120 Hz 240 Hz (Better)
Variable Refresh Rate (VRR) FreeSync Premium FreeSync Premium Pro
Response Time 5 ms GTG 1 ms GTG (Better)
HDR Certification None DisplayHDR 1000
SDR Brightness 350 nits 420 nits (Better)
HDR Peak Brightness 350 nits 1000 nits (Better)
Contrast Ratio 1:1,500 1:2,500 (Better)
Ports 2x HDMI · 1x DP 1x HDMI · 2x DP · USB Hub
Color Gamut sRGB 99% · DCI-P3 95% sRGB 125% · DCI-P3 95% · Adobe RGB 92% (Better)
Year 2025 (Better) 2020

Frequently Asked Questions

Which has better PPI: Dell S2725QS or Samsung Odyssey G9 49"?
The Dell S2725QS has 163 PPI compared to 109 PPI for the Samsung Odyssey G9 49".
Which has a closer optimal viewing distance?
The Dell S2725QS requires 54cm vs 80cm for the Samsung Odyssey G9 49" 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).

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