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| General Info | ||
|---|---|---|
| Model Number | Dell UltraSharp U4919DW | Acer KG251Q |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2018 | 2017 |
| Brand | Dell | Acer |
| Model Number | UltraSharp U4919DW | KG251Q |
| Alias | KG251Qbmiix | |
| Display | ||
| Screen Size Class | 49" (inches) | 25" (inches) |
| Diagonal Size | 49 in 124.5 cm 1244.6 mm 4.08 ft |
24.5 in 62.2 cm 622.3 mm 2.04 ft |
| Screen Width | 47.17 in 119.8 cm 1198.08 mm 3.93 ft |
21.41 in 54.4 cm 543.744 mm 1.78 ft |
| Screen Height | 13.27 in 33.7 cm 336.96 mm 1.11 ft |
11.91 in 30.3 cm 302.616 mm 0.99 ft |
| Display Curvature | 3800 | |
| Display Manufacturer | LG Display | |
| Display Type | IPS | TN |
| Display Bit Depth | 10 bits | 8 bits (6 bits + FRC) |
| Frame Rate Control | No | Yes |
| Max Number of Colors | 1073741824 | 16777216 |
| Bits | 30 | 24 |
| Screen Aspect Ratio | 36:10 | 16:9 |
| Screen Resolution | 5120 x 1440 | 1920 x 1080 |
| Screen Pixel Pitch | 0.234 mm | 0.283 mm |
| Screen Pixel Density | 108 ppi | 89 ppi |
| Screen-to-Body Ratio | 89.55 % | 88.65 % |
| Backlight Source | W-LED | W-LED |
| sRGB | 99 % | |
| Adobe RGB 1998 | 75 % | |
| NTSC 1953 | 72 % | 72 % |
| Screen Brightness | 350 cd/m² | 250 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 100000000 : 1 | |
| Screen Horizontal Viewing Angle | 178 ° | 170 ° |
| Screen Vertical Viewing Angle | 178 ° | 160 ° |
| Screen Input Lag | 10 ms | |
| Display Minimum Response Time | 5 ms | 1 ms |
| Display Average Response Time | 8 ms | |
| Display Maximum Response Time | 15 ms | |
| Display Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 4.3 in 10.9 cm 109.3 mm 0.36 ft |
2.2 in 5.6 cm 56 mm 0.18 ft |
| Case Weight | 11.4 kg 25 lbs |
|
| Case Width with Stand | 47.84 in 121.5 cm 1215.1 mm 3.99 ft |
21.96 in 55.8 cm 557.89 mm 1.83 ft |
| Case Height with Stand | 18.06 in 45.9 cm 458.6 mm 1.5 ft |
16.92 in 43 cm 429.69 mm 1.41 ft |
| Case Depth with Stand | 9.94 in 25.3 cm 252.6 mm 0.83 ft |
8.48 in 21.5 cm 215.46 mm 0.71 ft |
| Case Weight with Stand | 17.2 kg 38 lbs |
4.1 kg 9 lbs |
| Case Color | Black | Black |
| Hardware | ||
| Built-in Camera | No | No |
| Connectivity | 1 x USB 3.0 (charger - 5V/2.0A) 1 x USB 3.1 (Type-C) 1 x DisplayPort 1.4 2 x HDMI 2.0 2 x USB 3.0 (upstream) 4 x USB 3.0 (downstream) |
1 x 3.5 mm Audio Out 1 x HDMI 1.4 1 x D-sub |
| Audio | ||
| Audio Speakers | 2 x 2W | |
| Features | ||
| Cool Features | HDCP (High-bandwidth Digital Content Protection) 2.2 Picture-by-Picture Blue Light Filter Flicker-free technology |
Flicker-free technology HDCP (High-bandwidth Digital Content Protection) AMD FreeSync technology Blue Light Filter |
| Extra Features | Security lock slot | |
| Ergonomics | ||
| Case Width | 47.84 in 121.5 cm 1215.1 mm 3.99 ft |
21.96 in 55.8 cm 557.89 mm 1.83 ft |
| Case Height | 14.61 in 37.1 cm 371 mm 1.22 ft |
13.1 in 33.3 cm 332.7 mm 1.09 ft |
| Vesa Mount Support | Yes | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | Yes | No |
| Height Adjustment Range | 130 mm 13 cm 5.1181 in 0.4265 ft |
|
| Landscape or Portrait Pivot Support | No | No |
| Left or Right Swivel Support | Yes | No |
| Left Swivel | 170 ° | |
| Right Swivel | 170 ° | |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 21 ° | 15 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 24 Hz - 86 Hz | 55 Hz - 75 Hz |
| Horizontal Digital Frequency | 25 kHz - 115 kHz | 30 kHz - 85 kHz |
| Accessories | ||
| Extras | DisplayPort cable HDMI cable USB 3.0 upstream cable USB Type-C cable |
D-sub cable HDMI cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR 7.0 RoHS TCO Certified Displays |
ENERGY STAR ErP TCO Certified Displays |
| 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 UltraSharp U4919DW | Acer KG251Q |
