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| General Info | ||
|---|---|---|
| Model Number | Dell S2421HN | Acer S277HK |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2020 | 2014 |
| Brand | Dell | Acer |
| Model Number | S2421HN | S277HK |
| Alias | S2421NX | S277HKwmidpp |
| Display | ||
| Screen Size Class | 24" (inches) | 27" (inches) |
| Diagonal Size | 23.8 in 60.4 cm 604.478 mm 1.98 ft |
27 in 68.6 cm 685.8 mm 2.25 ft |
| Screen Width | 20.75 in 52.7 cm 527.04 mm 1.73 ft |
23.47 in 59.6 cm 596.16 mm 1.96 ft |
| Screen Height | 11.67 in 29.6 cm 296.46 mm 0.97 ft |
13.2 in 33.5 cm 335.34 mm 1.1 ft |
| Display Manufacturer | AU Optronics | |
| Display Type | IPS | AHVA IPS |
| 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 | 1920 x 1080 | 3840 x 2160 |
| Screen Pixel Pitch | 0.275 mm | 0.155 mm |
| Screen Pixel Density | 92 ppi | 163 ppi |
| Screen-to-Body Ratio | 90.06 % | 80.2 % |
| Backlight Source | W-LED | W-LED |
| sRGB | 100 % | |
| NTSC 1953 | 72 % | |
| Screen Brightness | 250 cd/m² | 300 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 100000000 : 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 | 6 ms |
| Display Maximum Response Time | 12 ms | |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 2.12 in 5.4 cm 53.8 mm 0.18 ft |
4.45 in 11.3 cm 113 mm 0.37 ft |
| Case Weight | 3.3 kg 7 lbs |
4.94 kg 11 lbs |
| Case Width with Stand | 21.17 in 53.8 cm 537.8 mm 1.76 ft |
24.17 in 61.4 cm 614 mm 2.01 ft |
| Case Height with Stand | 16.25 in 41.3 cm 412.8 mm 1.35 ft |
17.76 in 45.1 cm 451 mm 1.48 ft |
| Case Depth with Stand | 6.02 in 15.3 cm 152.8 mm 0.5 ft |
6.06 in 15.4 cm 154 mm 0.51 ft |
| Case Weight with Stand | 4.1 kg 9 lbs |
5.4 kg 12 lbs |
| Case Color | Black, Silver | White |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 2 x HDMI 1.4 1 x 3.5 mm Audio Out |
1 x DisplayPort 1.2 (Input mini) 1 x DVI-D Dual Link 1 x 3.5 mm Audio Out 1 x 3.5 mm Audio In 1 x HDMI 2.0 1 x DisplayPort 1.2 |
| Audio | ||
| Audio Speakers | 2 x 2W | |
| Features | ||
| Cool Features | Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology |
HDCP (High-bandwidth Digital Content Protection) Picture-by-Picture Picture-in-Picture Blue Light Filter Flicker-free technology |
| Extra Features | Anti-theft stand lock slot - Kensington S2421HN - silver S2421NX - black |
Anti-theft stand lock slot - Kensington |
| Ergonomics | ||
| Case Width | 21.17 in 53.8 cm 537.8 mm 1.76 ft |
24.17 in 61.4 cm 614 mm 2.01 ft |
| Case Height | 12.7 in 32.3 cm 322.6 mm 1.06 ft |
15.98 in 40.6 cm 406 mm 1.33 ft |
| Vesa Mount Support | Yes | No |
| VESA Interface Standard Size | 100 x 100 | 75 x 75 |
| 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 ° | 15 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 48 Hz - 75 Hz | 24 Hz - 75 Hz |
| Horizontal Digital Frequency | 30 kHz - 83 kHz | 31 kHz - 135 kHz |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | HDMI cable | DisplayPort cable DVI-D cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR 8.0 EPEAT RoHS TCO Certified TUV Flicker Free TUV Low Blue Light |
CE ENERGY STAR 6.0 TCO Certified Displays 6.0 TÜV/GS |
| Usage and Storage Requirements | ||
| Safe Operating Temperature Level | 0 °C - 40 °C 32 °F - 104 °F |
|
| Safe Operating Humidity Level | 10 % - 80 % | |
| Internal Storage Temperature | -20 °C - 60 °C -4 °F - 140 °F |
|
| Internal Storage Humidity | 5 % - 90 % | |
| Max Operating Altitude | 5000 | |
| Max Storage Altitude | 12192 |
| Dell S2421HN | Acer S277HK |
