Comparison between Dell P2721Q vs Dell P2815Q

General Info
Model Number	Dell P2721Q	Dell P2815Q

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2020	2014
Brand	Dell	Dell
Model Number	P2721Q	P2815Q
Display
Screen Size Class	27" (inches)	28" (inches)
Diagonal Size	26.96 in 68.5 cm 684.667 mm 2.25 ft	28 in 71.1 cm 711.2 mm 2.33 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	24.45 in 62.1 cm 620.93 mm 2.04 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	13.44 in 34.1 cm 341.28 mm 1.12 ft
Display Manufacturer		Innolux
Display Type	IPS	TN
Display Bit Depth	10 bits	10 bits (8 bits + FRC)
Frame Rate Control		Yes
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio	16:9	16:9
Screen Resolution	3840 x 2160	3840 x 2160
Screen Pixel Pitch	0.155 mm	0.162 mm
Screen Pixel Density	163 ppi	157 ppi
Screen-to-Body Ratio		83.95 %
Backlight Source	W-LED	W-LED
sRGB	99 %	97 %
Adobe RGB 1998		66 %
NTSC 1953		72 %
Screen Brightness	350 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Screen Horizontal Viewing Angle	178 °	170 °
Screen Vertical Viewing Angle	178 °	160 °
Screen Input Lag		120 ms
Display Minimum Response Time	5 ms	5 ms
Display Average Response Time	8 ms	18 ms
Display Maximum Response Time		25 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
3D	No	No
Size, weight, color
Case Depth		2.21 in 5.6 cm 56.2 mm 0.18 ft
Case Weight	5.1 kg 11 lbs	5.19 kg 11 lbs
Case Width with Stand	24.08 in 61.2 cm 611.6 mm 2.01 ft	26.04 in 66.1 cm 661.3 mm 2.17 ft
Case Height with Stand	15.17 in 38.5 cm 385.2 mm 1.26 ft	17.14 in 43.5 cm 435.3 mm 1.43 ft
Case Depth with Stand	7.28 in 18.5 cm 185 mm 0.61 ft	8.04 in 20.4 cm 204.1 mm 0.67 ft
Case Weight with Stand		7.2 kg 16 lbs
Case Color	Apollo Gray	Black
Hardware
Built-in Camera	No	No
Connectivity	2 x USB 3.2 (Type-A; Gen 1; downstream) 1 x HDMI 2.0 1 x 3.5 mm Audio Out 1 x DisplayPort 1.2 2 x USB 2.0 (Type-A; downstream) 1 x USB 3.2 (Type-C; Gen 1; upstream; 65W; DP Alt Mode)	1 x HDMI 1.4 (MHL) 1 x DisplayPort (Output MST) 1 x DisplayPort 1.2 (Input mini) 1 x 3.5 mm Audio Out 1 x DisplayPort 1.2 4 x USB 3.0 (downstream) 1 x USB 3.0 (upstream)
Audio
Features
Cool Features	Flicker-free technology Low Blue Light	HDCP (High-bandwidth Digital Content Protection)
Extra Features	Anti-theft stand lock slot - Kensington	Security lock slot
Ergonomics
Case Width	24.08 in 61.2 cm 611.6 mm 2.01 ft	26.04 in 66.1 cm 661.3 mm 2.17 ft
Case Height		15.03 in 38.2 cm 381.7 mm 1.25 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	150 mm 15 cm 5.9055 in 0.4921 ft	115 mm 11.5 cm 4.5276 in 0.3773 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		24 Hz - 85 Hz
Horizontal Digital Frequency		31 kHz - 114 kHz
Screen Interpolation Measurement Unit	NULL
Accessories
Extras	DisplayPort cable USB Type-C to Type-C cable USB Type-C to Type-A cable	DisplayPort cable - mini-DP to DP USB 3.0 upstream cable
Certificates and Standards
Licenses	CEC CECP CEL ENERGY STAR 8.0 EPEAT RoHS TCO Certified Displays 8.0 TUV Flicker Free TUV Low Blue Light	ENERGY STAR 6.0 Epeat Gold RoHS TCO Certified Displays
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 %	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 P2721Q

Dell P2815Q