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| General Info | ||
|---|---|---|
| Model Number | Dell P2815Q | Dell S2721QS |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2014 | 2020 |
| Brand | Dell | Dell |
| Model Number | P2815Q | S2721QS |
| Display | ||
| Screen Size Class | 28" (inches) | 27" (inches) |
| Diagonal Size | 28 in 71.1 cm 711.2 mm 2.33 ft |
26.96 in 68.5 cm 684.7 mm 2.25 ft |
| Screen Width | 24.45 in 62.1 cm 620.93 mm 2.04 ft |
23.49 in 59.7 cm 596.736 mm 1.96 ft |
| Screen Height | 13.44 in 34.1 cm 341.28 mm 1.12 ft |
13.22 in 33.6 cm 335.664 mm 1.1 ft |
| Display Manufacturer | Innolux | |
| Display Type | TN | IPS |
| Display Bit Depth | 10 bits (8 bits + FRC) | 10 bits |
| Frame Rate Control | Yes | |
| Max Number of Colors | 1073741824 | 1073741824 |
| Bits | 30 | 30 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 3840 x 2160 | 3840 x 2160 |
| Screen Pixel Pitch | 0.162 mm | 0.155 mm |
| Screen Pixel Density | 157 ppi | 163 ppi |
| Screen-to-Body Ratio | 83.95 % | 89.83 % |
| Backlight Source | W-LED | W-LED |
| sRGB | 97 % | 99 % |
| Adobe RGB 1998 | 66 % | |
| NTSC 1953 | 72 % | |
| Screen Brightness | 300 cd/m² | 350 cd/m² |
| Max Screen Brightness | 390 cd/m² | |
| Static Screen Contrast | 1000 : 1 | 1300 : 1 |
| Screen Horizontal Viewing Angle | 170 ° | 178 ° |
| Screen Vertical Viewing Angle | 160 ° | 178 ° |
| Screen Input Lag | 120 ms | |
| Display Minimum Response Time | 5 ms | 4 ms |
| Display Average Response Time | 18 ms | 8 ms |
| Display Maximum Response Time | 25 ms | |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 2.21 in 5.6 cm 56.2 mm 0.18 ft |
2.18 in 5.5 cm 55.4 mm 0.18 ft |
| Case Weight | 5.19 kg 11 lbs |
4.7 kg 10 lbs |
| Case Width with Stand | 26.04 in 66.1 cm 661.3 mm 2.17 ft |
24.08 in 61.2 cm 611.6 mm 2.01 ft |
| Case Height with Stand | 17.14 in 43.5 cm 435.3 mm 1.43 ft |
15.75 in 40 cm 400.1 mm 1.31 ft |
| Case Depth with Stand | 8.04 in 20.4 cm 204.1 mm 0.67 ft |
6.88 in 17.5 cm 174.7 mm 0.57 ft |
| Case Weight with Stand | 7.2 kg 16 lbs |
6.4 kg 14 lbs |
| Case Color | Black | Silver |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x HDMI 1.4 (MHL) 1 x DisplayPort (Output MST) 1 x DisplayPort 1.2 (Input mini) 1 x 3.5 mm Audio Out 1 x DisplayPort 1.2 4 x USB 3.0 (downstream) 1 x USB 3.0 (upstream) |
1 x 3.5 mm Audio Out 2 x HDMI 2.0 1 x DisplayPort 1.2 |
| Audio | ||
| Audio Speakers | 2 x 3W | |
| Features | ||
| Cool Features | HDCP (High-bandwidth Digital Content Protection) | Flicker-free technology Low Blue Light 3-sided bezeless design AMD FreeSync technology |
| Extra Features | Security lock slot | Anti-theft stand lock slot - Kensington |
| Ergonomics | ||
| Case Width | 26.04 in 66.1 cm 661.3 mm 2.17 ft |
24.08 in 61.2 cm 611.6 mm 2.01 ft |
| Case Height | 15.03 in 38.2 cm 381.7 mm 1.25 ft |
14.35 in 36.5 cm 364.6 mm 1.2 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 | 115 mm 11.5 cm 4.5276 in 0.3773 ft |
110 mm 11 cm 4.3307 in 0.3609 ft |
| Landscape or Portrait Pivot Support | Yes | Yes |
| Left Pivot | 90 ° | 90 ° |
| Right Pivot | 90 ° | 90 ° |
| Left or Right Swivel Support | Yes | Yes |
| Left Swivel | 45 ° | 30 ° |
| Right Swivel | 45 ° | 30 ° |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 21 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 24 Hz - 85 Hz | 40 Hz - 60 Hz |
| Horizontal Digital Frequency | 31 kHz - 114 kHz | 130 kHz - 137 kHz |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | DisplayPort cable - mini-DP to DP USB 3.0 upstream cable |
HDMI cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR 6.0 Epeat Gold RoHS 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 - 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 P2815Q | Dell S2721QS |
