Comparison between Dell UltraSharp U2518D vs Dell S2721DGF

General Info
Model Number	Dell UltraSharp U2518D	Dell S2721DGF

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Type	Monitor	Monitor
Year	2017	2020
Brand	Dell	Dell
Model Number	UltraSharp U2518D	S2721DGF
Display
Screen Size Class	25" (inches)	27" (inches)
Diagonal Size	24.98 in 63.4 cm 634.4 mm 2.08 ft	26.96 in 68.5 cm 684.7 mm 2.25 ft
Screen Width	21.77 in 55.3 cm 552.96 mm 1.81 ft	23.49 in 59.7 cm 596.736 mm 1.96 ft
Screen Height	12.25 in 31.1 cm 311.04 mm 1.02 ft	13.22 in 33.6 cm 335.664 mm 1.1 ft
Display Manufacturer	LG Display
Display Type	AH-IPS	IPS
Display Bit Depth	8 bits	10 bits
Frame Rate Control	No
Max Number of Colors	16777216	1073741824
Bits	24	30
Screen Aspect Ratio	16:9	16:9
Screen Resolution	2560 x 1440	2560 x 1440
Screen Pixel Pitch	0.216 mm	0.233 mm
Screen Pixel Density	117 ppi	109 ppi
Screen-to-Body Ratio	91.41 %	90.07 %
Backlight Source	W-LED	W-LED
DCI P3	79.3%	98%
sRGB	99 %
Adobe RGB 1998	65 %
Screen Brightness	350 cd/m²	400 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast	2000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	5 ms
Display Minimum Response Time	5 ms	1 ms
Display Average Response Time	8 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR	HDR10	DisplayHDR 400
3D	No	No
Size, weight, color
Case Depth	1.94 in 4.9 cm 49.2 mm 0.16 ft	2.67 in 6.8 cm 67.8 mm 0.22 ft
Case Weight	3.44 kg 8 lbs	4.5 kg 10 lbs
Case Width with Stand	22.35 in 56.8 cm 567.6 mm 1.86 ft	24.08 in 61.2 cm 611.6 mm 2.01 ft
Case Height with Stand	15.64 in 39.7 cm 397.2 mm 1.3 ft	15.51 in 39.4 cm 393.9 mm 1.29 ft
Case Depth with Stand	7.88 in 20 cm 200.1 mm 0.66 ft	7.89 in 20 cm 200.3 mm 0.66 ft
Case Weight with Stand	6.24 kg 14 lbs
Case Color	Silver	Black
Hardware
Built-in Camera	No	No
Connectivity	1 x USB 3.0 (upstream) 1 x HDMI 2.0 1 x DisplayPort 1.2 (Input mini) 1 x 3.5 mm Audio Out 1 x DisplayPort 1.2 (Output MST) 1 x DisplayPort 1.2 2 x USB 3.0 (charger - 5V/2.0A) 2 x USB 3.0 (downstream)	2 x HDMI 2.0 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out 1 x 3.5 mm Audio In 4 x USB 3.0 (Type-A; downstream) 1 x USB 3.0 (Type-B; upstream)
Audio
Features
Cool Features	Low Blue Light Flicker-free technology HDCP (High-bandwidth Digital Content Protection)	Low Blue Light NVIDIA G-SYNC Compatible RGB lights AMD FreeSync Premium Pro Flicker-free technology
Extra Features	Anti-theft stand lock slot Security lock slot	Security lock slot
Ergonomics
Case Width	22.35 in 56.8 cm 567.6 mm 1.86 ft	24.08 in 61.2 cm 611.6 mm 2.01 ft
Case Height	13.05 in 33.2 cm 331.5 mm 1.09 ft	14.31 in 36.4 cm 363.6 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	130 mm 13 cm 5.1181 in 0.4265 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 °	45 °
Right Swivel	45 °	45 °
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	21 °	21 °
Frequency and Interpolation
Vertical Digital Frequency	56 Hz - 76 Hz	30 Hz - 165 Hz
Horizontal Digital Frequency	30 kHz - 144 kHz
Screen Interpolation Measurement Unit		NULL
Accessories
Extras	DisplayPort cable - mini-DP to DP Factory calibration report USB 3.0 upstream cable	DisplayPort cable HDMI cable USB 3.0 cable
Certificates and Standards
Licenses	ENERGY STAR Epeat Gold RoHS Compliant TCO Certified Displays	ENERGY STAR EPEAT TCO Certified RoHS
Usage and Storage Requirements
Safe Operating Temperature Level	0 °C - 35 °C 32 °F - 95 °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 UltraSharp U2518D

Dell S2721DGF