Comparison between Dell P2421DC vs Samsung C34J791

General Info
Model Number	Dell P2421DC	Samsung C34J791

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2018
Brand	Dell	Samsung
Model Number	P2421DC	C34J791
Alias		LC34J791WTEXXS
Display
Screen Size Class	24" (inches)	34" (inches)
Diagonal Size	23.78 in 60.4 cm 604 mm 1.98 ft	34 in 86.4 cm 863.6 mm 2.83 ft
Screen Width	20.74 in 52.7 cm 526.85 mm 1.73 ft	31.49 in 80 cm 799.8 mm 2.62 ft
Screen Height	11.67 in 29.6 cm 296.35 mm 0.97 ft	13.18 in 33.5 cm 334.8 mm 1.1 ft
Display Curvature		1500
Display Manufacturer		Samsung
Display Type	IPS	SVA
Display Bit Depth	8 bits (6 bits + FRC)	8 bits
Frame Rate Control	Yes	No
Max Number of Colors	16777216	16777216
Bits	24	24
Screen Aspect Ratio	16:9	21:9
Screen Resolution	2560 x 1440	3440 x 1440
Screen Pixel Pitch	0.206 mm	0.233 mm
Screen Pixel Density	123 ppi	109 ppi
Screen-to-Body Ratio	90.13 %	91.27 %
Backlight Source	W-LED	Edge LED
sRGB	99 %	125 %
Adobe RGB 1998		92 %
Screen Brightness	300 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	3000 : 1
Dynamic Screen Contrast		100000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag		6 ms
Display Minimum Response Time	5 ms	4 ms
Display Average Response Time	8 ms	14 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (2H)
3D		No
Size, weight, color
Case Depth	1.68 in 4.3 cm 42.7 mm 0.14 ft	6.57 in 16.7 cm 167 mm 0.55 ft
Case Weight	3.77 kg 8 lbs	6.3 kg 14 lbs
Case Width with Stand	21.17 in 53.8 cm 537.8 mm 1.76 ft	31.84 in 80.9 cm 808.7 mm 2.65 ft
Case Height with Stand	14.02 in 35.6 cm 356.1 mm 1.17 ft	20.31 in 51.6 cm 516 mm 1.69 ft
Case Depth with Stand	6.54 in 16.6 cm 166 mm 0.54 ft	12.18 in 30.9 cm 309.4 mm 1.02 ft
Case Weight with Stand		7.7 kg 17 lbs
Case Color		White, Silver
Hardware
Built-in Camera	No	No
Connectivity	2 x USB 3.0 (downstream) 1 x HDMI 1.4 1 x DisplayPort 1.2 (in) 1 x DisplayPort 1.2 (out) 1 x USB (Type-C; 65W) 2 x USB 2.0 (downstream)	1 x DisplayPort 1.2 2 x Thunderbolt 3.0 1 x 3.5 mm Audio Out 2 x USB 2.0 (downstream) 1 x HDMI 1.4
Audio
Audio Speakers		2 x 7W
Features
Cool Features	Low Blue Light Daisy Chain Availability Flicker-free technology	Eye Saver Mode Flicker-free technology Picture-by-Picture Picture-in-Picture HDCP (High-bandwidth Digital Content Protection) AMD FreeSync technology Eco Saving Plus
Extra Features	Security lock slot	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	21.17 in 53.8 cm 537.8 mm 1.76 ft	31.84 in 80.9 cm 808.7 mm 2.65 ft
Case Height	12.68 in 32.2 cm 322.1 mm 1.06 ft	14.28 in 36.3 cm 362.8 mm 1.19 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	130 mm 13 cm 5.1181 in 0.4265 ft	100 mm 10 cm 3.937 in 0.3281 ft
Landscape or Portrait Pivot Support	Yes	No
Left Pivot	90 °
Right Pivot	90 °
Left or Right Swivel Support	Yes	No
Left Swivel	45 °
Right Swivel	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	2 °
Backward Tilt	21 °	34 °
Frequency and Interpolation
Vertical Digital Frequency	60 Hz	48 Hz - 100 Hz
Horizontal Digital Frequency		30 kHz - 152 kHz
Screen Interpolation Measurement Unit	NULL
Accessories
Extras	DisplayPort cable USB Type-C cable
Certificates and Standards
Licenses	ENERGY STAR EPEAT RoHS TCO Certified Display	ENERGY STAR FCC Class B ISO9241-307 TÜV/Ergonomics
Usage and Storage Requirements
Safe Operating Temperature Level	0 °C - 40 °C 32 °F - 104 °F	10 °C - 40 °C 50 °F - 104 °F
Safe Operating Humidity Level	10 % - 90 %	10 % - 80 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F	-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity	10 % - 90 %	5 % - 95 %
Max Operating Altitude	5000
Max Storage Altitude	12192

Dell P2421DC

Samsung C34J791