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| General Info | ||
|---|---|---|
| Model Number | Dell UltraSharp U2518D | Dell S3221QS |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2017 | 2020 |
| Brand | Dell | Dell |
| Model Number | UltraSharp U2518D | S3221QS |
| Display | ||
| Screen Size Class | 25" (inches) | 32" (inches) |
| Diagonal Size | 24.98 in 63.4 cm 634.4 mm 2.08 ft |
31.5 in 80 cm 800.1 mm 2.63 ft |
| Screen Width | 21.77 in 55.3 cm 552.96 mm 1.81 ft |
27.45 in 69.7 cm 697.31 mm 2.29 ft |
| Screen Height | 12.25 in 31.1 cm 311.04 mm 1.02 ft |
15.44 in 39.2 cm 392.26 mm 1.29 ft |
| Display Curvature | 1800 | |
| Display Manufacturer | LG Display | |
| Display Type | AH-IPS | VA |
| Display Bit Depth | 8 bits | 10 bits |
| Frame Rate Control | No | |
| Max Number of Colors | 16777216 | 1073741824 |
| Bits | 24 | 30 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 2560 x 1440 | 3840 x 2160 |
| Screen Pixel Pitch | 0.216 mm | 0.182 mm |
| Screen Pixel Density | 117 ppi | 140 ppi |
| Screen-to-Body Ratio | 91.41 % | 90.79 % |
| Backlight Source | W-LED | W-LED |
| DCI P3 | 79.3% | 90% |
| sRGB | 99 % | 99 % |
| Adobe RGB 1998 | 65 % | 80 % |
| Screen Brightness | 350 cd/m² | 300 cd/m² |
| Max Screen Brightness | 370 cd/m² | |
| Static Screen Contrast | 1000 : 1 | 3000 : 1 |
| Dynamic Screen Contrast | 2000000 : 1 | |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Screen Input Lag | 5 ms | |
| Display Minimum Response Time | 5 ms | 4 ms |
| Display Average Response Time | 8 ms | 8 ms |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| HDR | HDR10 | |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 1.94 in 4.9 cm 49.2 mm 0.16 ft |
2.52 in 6.4 cm 64 mm 0.21 ft |
| Case Weight | 3.44 kg 8 lbs |
7.4 kg 16 lbs |
| Case Width with Stand | 22.35 in 56.8 cm 567.6 mm 1.86 ft |
27.92 in 70.9 cm 709.2 mm 2.33 ft |
| Case Height with Stand | 15.64 in 39.7 cm 397.2 mm 1.3 ft |
17.64 in 44.8 cm 448.1 mm 1.47 ft |
| Case Depth with Stand | 7.88 in 20 cm 200.1 mm 0.66 ft |
8.15 in 20.7 cm 207 mm 0.68 ft |
| Case Weight with Stand | 6.24 kg 14 lbs |
10.9 kg 24 lbs |
| Case Color | Silver | Silver |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x USB 3.0 (upstream) 1 x HDMI 2.0 1 x DisplayPort 1.2 (Input mini) 1 x 3.5 mm Audio Out 1 x DisplayPort 1.2 (Output MST) 1 x DisplayPort 1.2 2 x USB 3.0 (charger - 5V/2.0A) 2 x USB 3.0 (downstream) |
2 x HDMI 2.0 1 x DisplayPort 1.2 1 x 3.5 mm Audio Out 2 x USB 3.0 (Type-A; downstream) 1 x USB 3.0 (Type-B; upstream) |
| Audio | ||
| Audio Speakers | 2 x 5W | |
| Features | ||
| Cool Features | Low Blue Light Flicker-free technology HDCP (High-bandwidth Digital Content Protection) |
Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology |
| Extra Features | Anti-theft stand lock slot Security lock slot |
Anti-theft stand lock slot - Kensington |
| Ergonomics | ||
| Case Width | 22.35 in 56.8 cm 567.6 mm 1.86 ft |
27.92 in 70.9 cm 709.2 mm 2.33 ft |
| Case Height | 13.05 in 33.2 cm 331.5 mm 1.09 ft |
16.72 in 42.5 cm 424.8 mm 1.39 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | Yes | Yes |
| Height Adjustment Range | 130 mm 13 cm 5.1181 in 0.4265 ft |
70 mm 7 cm 2.7559 in 0.2297 ft |
| Landscape or Portrait Pivot Support | Yes | No |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° | |
| Left or Right Swivel Support | Yes | No |
| Left Swivel | 45 ° | |
| Right Swivel | 45 ° | |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 21 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 56 Hz - 76 Hz | 40 Hz - 60 Hz |
| Horizontal Digital Frequency | 30 kHz - 144 kHz | 29 kHz - 140 kHz |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | DisplayPort cable - mini-DP to DP Factory calibration report USB 3.0 upstream cable |
HDMI cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR Epeat Gold RoHS Compliant TCO Certified Displays |
ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light |
| Usage and Storage Requirements | ||
| Safe Operating Temperature Level | 0 °C - 35 °C 32 °F - 95 °F |
0 °C - 40 °C 32 °F - 104 °F |
| Safe Operating Humidity Level | 10 % - 80 % | 10 % - 80 % |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
-20 °C - 60 °C -4 °F - 140 °F |
| Internal Storage Humidity | 5 % - 90 % | 5 % - 90 % |
| Max Operating Altitude | 5000 | 5000 |
| Max Storage Altitude | 12192 | 12192 |
| Dell UltraSharp U2518D | Dell S3221QS |
