Comparison between Dell U2421HE vs Philips 278E1A

General Info
Model Number	Dell U2421HE	Philips 278E1A

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2019
Brand	Dell	Philips
Model Series		E-Line
Model Number	U2421HE	278E1A
Alias		278E1A/00 278E1A/01
Display
Screen Size Class	24" (inches)	27" (inches)
Diagonal Size	23.81 in 60.5 cm 604.7 mm 1.98 ft	27 in 68.6 cm 685.9 mm 2.25 ft
Screen Width	20.75 in 52.7 cm 527.04 mm 1.73 ft	23.49 in 59.7 cm 596.736 mm 1.96 ft
Screen Height	11.67 in 29.6 cm 296.46 mm 0.97 ft	13.22 in 33.6 cm 335.664 mm 1.1 ft
Display Curvature		1800
Display Type	IPS	IPS
Display Bit Depth	8 bits	10 bits (8 bits + FRC)
Frame Rate Control		Yes
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	92.49 %	88.79 %
Backlight Source	W-LED	W-LED
DCI P3	89%
sRGB	99 %	109 %
NTSC 1953		91 %
Screen Brightness	250 cd/m²	350 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Minimum Response Time	5 ms	4 ms
Display Average Response Time	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth	1.54 in 3.9 cm 39 mm 0.13 ft	1.77 in 4.5 cm 45 mm 0.15 ft
Case Weight	3.37 kg 7 lbs	4.18 kg 9 lbs
Case Width with Stand	21.2 in 53.9 cm 538.5 mm 1.77 ft	24.13 in 61.3 cm 613 mm 2.01 ft
Case Height with Stand	13.72 in 34.8 cm 348.4 mm 1.14 ft	18.15 in 46.1 cm 461 mm 1.51 ft
Case Depth with Stand	6.5 in 16.5 cm 165 mm 0.54 ft	7.56 in 19.2 cm 192 mm 0.63 ft
Case Weight with Stand	5.32 kg 12 lbs	4.78 kg 11 lbs
Case Color	Black	Black
Hardware
Built-in Camera	No	No
Connectivity	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)	1 x 3.5 mm Audio Out 1 x HDMI 2.0 2 x DisplayPort 1.2
Audio
Audio Speakers		2 x 3W
Features
Cool Features	Flicker-free technology Low Blue Light	SmartContrast SmartImage SmartUniformity SmartImage Game Flicker-free technology Low Blue Light
Extra Features	Security lock slot	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	21.2 in 53.9 cm 538.5 mm 1.77 ft	24.13 in 61.3 cm 613 mm 2.01 ft
Case Height	12.35 in 31.4 cm 313.7 mm 1.03 ft	14.49 in 36.8 cm 368 mm 1.21 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	Yes	No
Left Pivot	90 °
Right Pivot	90 °
Left or Right Swivel Support	Yes	No
Left Swivel	40 °
Right Swivel	40 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	20 °
Frequency and Interpolation
Vertical Digital Frequency	56 Hz - 76 Hz	59 Hz - 61 Hz
Horizontal Digital Frequency	30 kHz - 83 kHz	30 kHz - 83 kHz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	DisplayPort cable USB Type-C to Type-C cable	HDMI cable
Certificates and Standards
Licenses	ENERGY STAR EPEAT TCO Certified RoHS NFPA 99	cETLus EAC / CU TÜV/ISO9241-307 ENERGY STAR 8.0 FCC Class B ISO9241-307 CCC CECP RoHS
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 %	20 % - 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 %
Max Operating Altitude	5000	3658
Max Storage Altitude	12192	12192

Dell U2421HE

Philips 278E1A