DELL
P2721Q LED display
vs
Acer
B7 B277D
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DELL P2721Q LED display alternatives
Acer B7 B277D alternatives
specs
DELL
P2721Q LED display
Other Features
compared
Acer
B7 B277D
not available
Energy efficiency class (old):
A+
DELL
P2721Q LED display
Weight & Dimensions
compared
Acer
B7 B277D
1.77 cm
Bezel width (bottom):
not available
7.4 mm
Bezel width (top):
not available
7.4 mm
Bezel width (side):
not available
5.1 kg
Weight (without stand):
not available
36.1 cm
Height (without stand):
not available
5.21 cm
Depth (without stand):
not available
61.2 cm
Width (without stand):
not available
6.9 kg
Weight (with stand):
not available
535.2 mm
Height (with stand):
not available
185 mm
Depth (with stand):
not available
611.6 mm
Width (with stand):
not available
DELL
P2721Q LED display
Operational Conditions
compared
Acer
B7 B277D
5 - 90%
Storage relative humidity (H-H):
not available
10 - 80%
Operating relative humidity (H-H):
not available
-20 - 60 °C
Storage temperature (T-T):
not available
0 - 40 °C
Operating temperature (T-T):
not available
DELL
P2721Q LED display
Packaging Data
compared
Acer
B7 B277D
9.7 kg
Package weight:
not available
not available
Cables included:
AC, HDMI, USB
not available
Stand included:
DELL
P2721Q LED display
Power
compared
Acer
B7 B277D
A to G
Energy efficiency scale:
not available
not available
Annual energy consumption:
29 kWh
50/60 Hz
AC input frequency:
not available
100 - 240 V
AC input voltage:
120 - 230 V
22 W
Power consumption (PowerSave):
not available
0.2 W
Power consumption (off):
not available
138 W
Power consumption (max):
not available
0.2 W
Power consumption (standby):
not available
21.8 W
Power consumption (typical):
20 W
22 kWh
Energy consumption (SDR) per 1000 hours:
not available
F
Energy efficiency class (SDR):
not available
DELL
P2721Q LED display
Ergonomics
compared
Acer
B7 B277D
-5 - 21°
Tilt angle range:
-5 - 25°
True
Tiltable:
True
-45 - 45°
Swivel angle range:
not available
True
Pivot:
not available
-90 - 90°
Pivot angle:
not available
True
Swivelling:
not available
15 cm
Height adjustment:
12 cm
Height adjustment:
Cable lock slot:
not available
not available
Panel mounting interface:
100 x 100 mm
VESA mounting:
DELL
P2721Q LED display
Performance
compared
Acer
B7 B277D
not available
VESA Adaptive Sync support:
DELL
P2721Q LED display
Sustainability
compared
Acer
B7 B277D
ENERGY STAR
Sustainability certificates:
TCO
DELL
P2721Q LED display
Design
compared
Acer
B7 B277D
Silver
Feet colour:
Black
Black
Front bezel colour:
not available
not available
Frameless design:
Black
Product colour:
Black
Business
Market positioning:
Home
DELL
P2721Q LED display
Multimedia
compared
Acer
B7 B277D
not available
RMS rated power:
4 W
not available
Number of speakers:
2
not available
Built-in camera:
not available
Built-in speaker(s):
DELL
P2721Q LED display
Ports & Interfaces
compared
Acer
B7 B277D
not available
Headphone outputs:
3
not available
Headphone out:
1.2
DisplayPort version:
not available
1
DisplayPorts quantity:
1
2.0
HDMI version:
not available
1
HDMI ports quantity:
1
True
HDMI:
True
not available
VGA (D-Sub) ports quantity:
1
65 W
USB Power Delivery up to:
not available
4
USB Type-A downstream ports quantity:
not available
1
Number of upstream ports:
not available
USB Type-C
USB upstream port type:
not available
2.0 / 3.2 Gen 1 (3.1 Gen 1)
USB hub version:
not available
Built-in USB hub:
DELL
P2721Q LED display
Display
compared
Acer
B7 B277D
not available
NTSC coverage (typical):
72%
99%
Colour gamut:
not available
not available
Colour depth:
6 bit
not available
Display diagonal (metric):
68.6 cm
68.5 cm
Viewable size diagonal:
not available
33.6 cm
Viewable size, vertical:
not available
59.7 cm
Viewable size, horizontal:
not available
24 - 86 Hz
Vertical scan range:
48 - 75 Hz
15 - 135 kHz
Horizontal scan range:
30 - 85 kHz
163 ppi
Pixel density:
not available
0.1554 x 0.1554 mm
Pixel pitch:
not available
5 ms
Response time (fast):
not available
1.07 billion colours
Display number of colours:
16.7 million colours
178°
Viewing angle, vertical:
178°
178°
Viewing angle, horizontal:
178°
60 Hz
Maximum refresh rate:
75 Hz
not available
Contrast ratio (dynamic):
100000000:1
1000:1
Contrast ratio (typical):
1000:1
480i,480p,576i,576p,720p,1080i,1080p,2160p
Supported video modes:
not available
640 x 480 (VGA),720 x 400,800 x 600 (SVGA),1024 x 768 (XGA),1152 x 864 (XGA+),1280 x 1024 (SXGA),1920 x 1080 (HD 1080),2048 x 1280,2560 x 1440,3840 x 2160
Supported graphics resolutions:
not available
Flat
Screen shape:
Flat
LED
Backlight type:
LED
LCD
Display technology:
LCD
4K Ultra HD
HD type:
Full HD
8 ms
Response time:
4 ms
350 cd/m²
Display brightness (typical):
250 cd/m²
IPS
Panel type:
IPS
16:9
Native aspect ratio:
16:9
3840 x 2160 pixels
Display resolution:
1920 x 1080 pixels
68.6 cm (27")
Display diagonal:
68.6 cm (27")