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| General Info | ||
|---|---|---|
| Model Number | Dell S2721D | Dell S2421HN |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2020 | 2020 |
| Brand | Dell | Dell |
| Model Number | S2721D | S2421HN |
| Alias | S2421NX | |
| Display | ||
| Screen Size Class | 27" (inches) | 24" (inches) |
| Diagonal Size | 26.96 in 68.5 cm 684.7 mm 2.25 ft |
23.8 in 60.4 cm 604.478 mm 1.98 ft |
| Screen Width | 23.49 in 59.7 cm 596.736 mm 1.96 ft |
20.75 in 52.7 cm 527.04 mm 1.73 ft |
| Screen Height | 13.22 in 33.6 cm 335.664 mm 1.1 ft |
11.67 in 29.6 cm 296.46 mm 0.97 ft |
| Display Type | IPS | IPS |
| Display Bit Depth | 8 bits | 8 bits |
| Max Number of Colors | 16777216 | 16777216 |
| Bits | 24 | 24 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 2560 x 1440 | 1920 x 1080 |
| Screen Pixel Pitch | 0.233 mm | 0.275 mm |
| Screen Pixel Density | 109 ppi | 92 ppi |
| Screen-to-Body Ratio | 89.83 % | 90.06 % |
| Backlight Source | W-LED | W-LED |
| sRGB | 99 % | |
| NTSC 1953 | 72 % | |
| Screen Brightness | 320 cd/m² | 250 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Screen Input Lag | 10 ms | |
| Display Minimum Response Time | 4 ms | 4 ms |
| Display Average Response Time | 8 ms | 8 ms |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 2.18 in 5.5 cm 55.4 mm 0.18 ft |
2.12 in 5.4 cm 53.8 mm 0.18 ft |
| Case Weight | 4.4 kg 10 lbs |
3.3 kg 7 lbs |
| Case Width with Stand | 24.08 in 61.2 cm 611.6 mm 2.01 ft |
21.17 in 53.8 cm 537.8 mm 1.76 ft |
| Case Height with Stand | 17.85 in 45.3 cm 453.4 mm 1.49 ft |
16.25 in 41.3 cm 412.8 mm 1.35 ft |
| Case Depth with Stand | 7.35 in 18.7 cm 186.8 mm 0.61 ft |
6.02 in 15.3 cm 152.8 mm 0.5 ft |
| Case Weight with Stand | 5.4 kg 12 lbs |
4.1 kg 9 lbs |
| Case Color | Silver | Black, Silver |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x 3.5 mm Audio Out 2 x HDMI 1.4 1 x DisplayPort 1.2 |
2 x HDMI 1.4 1 x 3.5 mm Audio Out |
| Audio | ||
| Audio Speakers | 2 x 3W | |
| Features | ||
| Cool Features | Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology |
Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology |
| Extra Features | Anti-theft stand lock slot - Kensington | Anti-theft stand lock slot - Kensington S2421HN - silver S2421NX - black |
| Ergonomics | ||
| Case Width | 24.08 in 61.2 cm 611.6 mm 2.01 ft |
21.17 in 53.8 cm 537.8 mm 1.76 ft |
| Case Height | 14.35 in 36.5 cm 364.6 mm 1.2 ft |
12.7 in 32.3 cm 322.6 mm 1.06 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | No | No |
| Landscape or Portrait Pivot Support | No | No |
| Left or Right Swivel Support | No | No |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 21 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 48 Hz - 75 Hz | 48 Hz - 75 Hz |
| Horizontal Digital Frequency | 30 kHz - 115 kHz | 30 kHz - 83 kHz |
| Screen Interpolation Measurement Unit | NULL | NULL |
| Accessories | ||
| Extras | HDMI cable | HDMI cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light |
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 - 40 °C 32 °F - 104 °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 S2721D | Dell S2421HN |
