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| General Info | ||
|---|---|---|
| Model Number | Lenovo ThinkVision X1 (2nd GEN) | Dell U2721DE |
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| Price | ||
| Type | Monitor | Monitor |
| Year | 2018 | 2020 |
| Brand | Lenovo | Dell |
| Model Number | ThinkVision X1 (2nd GEN) | U2721DE |
| Alias | ThinkVision X1 (2018) | |
| Display | ||
| Screen Size Class | 27" (inches) | 27" (inches) |
| Diagonal Size | 26.96 in 68.5 cm 684.7 mm 2.25 ft |
26.96 in 68.5 cm 684.7 mm 2.25 ft |
| Screen Width | 23.49 in 59.7 cm 596.74 mm 1.96 ft |
23.49 in 59.7 cm 596.736 mm 1.96 ft |
| Screen Height | 13.21 in 33.6 cm 335.66 mm 1.1 ft |
13.22 in 33.6 cm 335.664 mm 1.1 ft |
| Display Type | IPS | IPS |
| Display Bit Depth | 10 bits | 8 bits |
| Frame Rate Control | No | |
| Max Number of Colors | 1073741824 | 16777216 |
| Bits | 30 | 24 |
| Screen Aspect Ratio | 16:9 | 16:9 |
| Screen Resolution | 3840 x 2160 | 2560 x 1440 |
| Screen Pixel Pitch | 0.155 mm | 0.233 mm |
| Screen Pixel Density | 163 ppi | 109 ppi |
| Screen-to-Body Ratio | 93.4 % | 92.16 % |
| Backlight Source | W-LED | W-LED |
| DCI P3 | 89% | |
| sRGB | 99 % | 99 % |
| Screen Brightness | 350 cd/m² | 350 cd/m² |
| Static Screen Contrast | 1000 : 1 | 1000 : 1 |
| Dynamic Screen Contrast | 3000000 : 1 | |
| Screen Horizontal Viewing Angle | 178 ° | 178 ° |
| Screen Vertical Viewing Angle | 178 ° | 178 ° |
| Display Minimum Response Time | 4 ms | 5 ms |
| Display Average Response Time | 6 ms | 8 ms |
| Display Maximum Response Time | 14 ms | |
| Display Coating | Anti-glare/Matte | Anti-glare/Matte (3H) |
| 3D | No | No |
| Size, weight, color | ||
| Case Depth | 1.29 in 3.3 cm 32.7 mm 0.11 ft |
1.54 in 3.9 cm 39 mm 0.13 ft |
| Case Weight | 4.29 kg 9 lbs |
4.19 kg 9 lbs |
| Case Width with Stand | 24.01 in 61 cm 609.74 mm 2 ft |
24.1 in 61.2 cm 612.2 mm 2.01 ft |
| Case Height with Stand | 18.69 in 47.5 cm 474.76 mm 1.56 ft |
15.36 in 39 cm 390.2 mm 1.28 ft |
| Case Depth with Stand | 9.24 in 23.5 cm 234.81 mm 0.77 ft |
7.09 in 18 cm 180 mm 0.59 ft |
| Case Weight with Stand | 5.59 kg 12 lbs |
6.24 kg 14 lbs |
| Case Color | Black | Black |
| Hardware | ||
| Built-in Camera | Yes | No |
| Connectivity | 1 x DisplayPort 1.2 1 x Thunderbolt 3.0 1 x 3.5 mm Audio Out 4 x USB 3.0 (downstream) 1 x HDMI 2.0 |
1 x USB 3.1 (Type-C; upstream; DP; 65W) 1 x Ethernet RJ45 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out 1 x DisplayPort 1.4 (Output MST) 1 x HDMI 1.4 2 x USB 3.0 (downstream) 2 x USB 3.0 (downstream; BC 1.2) |
| Audio | ||
| Features | ||
| Cool Features | HDCP (High-bandwidth Digital Content Protection) Low Blue Light |
Flicker-free technology Low Blue Light |
| Extra Features | Anti-theft stand lock slot - Kensington | Security lock slot |
| Ergonomics | ||
| Case Width | 24.01 in 61 cm 609.74 mm 2 ft |
24.1 in 61.2 cm 612.2 mm 2.01 ft |
| Case Height | 13.85 in 35.2 cm 351.71 mm 1.15 ft |
13.98 in 35.5 cm 355 mm 1.16 ft |
| Vesa Mount Support | No | Yes |
| VESA Interface Standard Size | 100 x 100 | 100 x 100 |
| Removable VESA Stand | Yes | Yes |
| Height Adjustment | No | Yes |
| Height Adjustment Range | 130 mm 13 cm 5.1181 in 0.4265 ft |
|
| Landscape or Portrait Pivot Support | No | Yes |
| Left Pivot | 90 ° | |
| Right Pivot | 90 ° | |
| Left or Right Swivel Support | No | Yes |
| Left Swivel | 40 ° | |
| Right Swivel | 40 ° | |
| Forward and Backward Tilt Support | Yes | Yes |
| Forward Tilt | 5 ° | 5 ° |
| Backward Tilt | 30 ° | 21 ° |
| Frequency and Interpolation | ||
| Vertical Digital Frequency | 23 Hz - 80 Hz | 56 Hz - 76 Hz |
| Horizontal Digital Frequency | 24 kHz - 60 kHz | 30 kHz - 90 kHz |
| Screen Interpolation Measurement Unit | NULL | |
| Accessories | ||
| Extras | HDMI cable USB Type-C cable USB Type-C to Type-A cable |
DisplayPort cable USB Type-C to Type-C cable |
| Certificates and Standards | ||
| Licenses | ENERGY STAR 7.0 FCC Class B RoHS TCO Certified Display 7.0 TÜV Eye Comfort WHQL (Windows 10; Windows 8.1; Windows 8; Windows 7) |
ENERGY STAR EPEAT TCO Certified RoHS NFPA 99 |
| Usage and Storage Requirements | ||
| Safe Operating Temperature Level | 0 °C - 45 °C 32 °F - 113 °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 % - 95 % | 5 % - 90 % |
| Max Operating Altitude | 5000 | 5000 |
| Max Storage Altitude | 12192 | 12192 |
| Lenovo ThinkVision X1 (2nd GEN) | Dell U2721DE |
