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Dell S2725QS vs LG 27GP850-B 27"

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

Dell S2725QS

27" · 3840×2160 · IPS
Optimal Viewing Distance 54cm
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LG 27GP850-B 27"

27" · 2560×1440 · IPS
Optimal Viewing Distance 80cm
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Category Ranking

Pixel Density (PPI)67in category
Dell S2725QS163 PPI #20
LG 27GP850-B 27"109 PPI #55
93 PPI224 PPI
HDR Peak Brightness67in category
Dell S2725QS350 nits #61
LG 27GP850-B 27"400 nits #51
250 nits2000 nits
DCI-P3 Color Gamut63in category
Dell S2725QS95% #48
LG 27GP850-B 27"98% #31
79%100%
Refresh Rate
Dell S2725QS120 Hz
LG 27GP850-B 27"165 Hz
StandardHighUltra

Summary

  • Sharpness: advantage Dell S2725QS — At 65cm, the Dell S2725QS is retina (163 PPI) while the LG 27GP850-B 27" is not — you need to sit at least 80cm away for pixel-free viewing.
  • Brightness: comparable — Both screens offer similar brightness (350 vs 400 nits SDR). Neither has a meaningful advantage for outdoor use.

Key Differences

Specification Dell S2725QS LG 27GP850-B 27"
Resolution 3840×2160 2560×1440
Pixel Density (PPI) 163 109
Optimal Viewing Distance 54cm 80cm
Contrast Ratio 1:1,500 1:1,000
Year 2025 2021
Refresh Rate 120 Hz 165 Hz
Response Time 5 ms GTG 1 ms GTG
SDR Brightness 350 nits 400 nits
HDR Peak Brightness 350 nits 400 nits
Color Gamut sRGB 99% · DCI-P3 95% sRGB 135% · DCI-P3 98% · Adobe RGB 93%
All specifications
Specification Dell S2725QS 2025 LG 27GP850-B 27" 2021
Screen Size 27" 27"
Resolution 3840×2160 (Better) 2560×1440
Pixel Density (PPI) 163 (Better) 109
Optimal Viewing Distance 54cm (Better) 80cm
Panel Type IPS IPS
Viewing Angle 178° 178°
Aspect Ratio 16:9 16:9
Refresh Rate 120 Hz 165 Hz (Better)
Variable Refresh Rate (VRR) FreeSync Premium FreeSync Premium
Response Time 5 ms GTG 1 ms GTG (Better)
HDR Certification None DisplayHDR 400
SDR Brightness 350 nits 400 nits (Better)
HDR Peak Brightness 350 nits 400 nits (Better)
Contrast Ratio 1:1,500 (Better) 1:1,000
Ports 2x HDMI · 1x DP 2x HDMI · 1x DP · USB Hub
Color Gamut sRGB 99% · DCI-P3 95% sRGB 135% · DCI-P3 98% · Adobe RGB 93% (Better)
Year 2025 (Better) 2021

Frequently Asked Questions

Which has better PPI: Dell S2725QS or LG 27GP850-B 27"?
The Dell S2725QS has 163 PPI compared to 109 PPI for the LG 27GP850-B 27".
Which has a closer optimal viewing distance?
The Dell S2725QS requires 54cm vs 80cm for the LG 27GP850-B 27" 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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