Comparison between:
- 27" Lenovo L27i-40
- 27" BenQ GW2790
- 27" Acer EK271 Ebmix

Brand, series, model

Information about the brand, series, model and model aliases.

Lenovo L27i-40BenQ GW2790Acer EK271 Ebmix
Lenovo L27i-40BenQ GW2790Acer EK271 Ebmix
Model alias--EK271Ebmix
Model year202220242023

Display

Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.

Size class27 in27 in27 in
Diagonal685.891 mm
68.5891 cm
27.0036 in
2.2503 ft
685.8 mm
68.58 cm
27 in
2.25 ft
685.8 mm
68.58 cm
27 in
2.25 ft
Width597.888 mm
59.7888 cm
23.5389 in
1.9616 ft
597.89 mm
59.789 cm
23.539 in
1.9616 ft
596.16 mm
59.616 cm
23.4709 in
1.9559 ft
Height336.312 mm
33.6312 cm
13.2406 in
1.1034 ft
336.31 mm
33.631 cm
13.2406 in
1.1034 ft
336.312 mm
33.6312 cm
13.2406 in
1.1034 ft
Panel typeIPSIPSIPS
Panel bit depth8 bits (6 bits + FRC)8 bits8 bits (6 bits + FRC)
FRCYesNoYes
Colors16777216 colors
24 bits
16777216 colors
24 bits
16777216 colors
24 bits
Aspect ratio1.778:1
16:9
1.778:1
16:9
1.778:1
16:9
Resolution1920 x 1080 pixels
Full HD / 1080p
1920 x 1080 pixels
Full HD / 1080p
1920 x 1080 pixels
Full HD / 1080p
Pixel pitch0.311 mm
0.0311 cm
0.0123 in
0.001 ft
0.311 mm
0.0311 cm
0.0123 in
0.001 ft
0.311 mm
0.0311 cm
0.0123 in
0.001 ft
Pixel density81 ppi
32 ppcm
81 ppi
32 ppcm
81 ppi
32 ppcm
Display area89.24 %85.56 %-
BacklightW-LEDW-LEDW-LED
sRGB99 %99 %99 %
Brightness300 cd/m²250 cd/m²250 cd/m²
Static contrast1000 : 11300 : 11000 : 1
Dynamic contrast3000000 : 1-100000000 : 1
Horizontal viewing angle178 °178 °178 °
Vertical viewing angle178 °178 °178 °
Minimum response time4 ms
0.0040 s
5 ms
0.0050 s
-
Average response time6 ms
0.0060 s
--
CoatingAnti-glare/MatteAnti-glare/Matte (3H)Anti-glare/Matte (3H)
--Response time - 1 ms (VRB - Visual Response Boost)

3D

3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.

3DNoNoNo

Frequencies

Information about the horizontal and vertical refresh rates/frequencies.

Horizontal frequency (digital)30 kHz - 83 kHz-31 kHz - 110 kHz
Vertical frequency (digital)48 Hz - 75 Hz48 Hz - 100 Hz48 Hz - 100 Hz

Power supply and consumption

Information about the power supply and consumption, energy efficiency class, etc.

110V100 V - 120 V100 V - 120 V100 V - 120 V
220V220 V - 240 V220 V - 240 V220 V - 240 V
Alternating current frequency50 Hz - 60 Hz50 Hz - 60 Hz50 Hz - 60 Hz
Power consumption (off)0.3 W-0.3 W
Power consumption (sleep)0.5 W0.3 W0.5 W
Power consumption (eco)-21 W-
Power consumption (average)19.5 W25 W21 W
Power consumption (maximum)36 W35 W48 W
Energy efficiency class-E-

Dimensions, weight and color

Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.

Width612.3 mm
61.23 cm
24.1063 in
2.0089 ft
612 mm
61.2 cm
24.0945 in
2.0079 ft
611.5 mm
61.15 cm
24.0748 in
2.0062 ft
Height368 mm
36.8 cm
14.4882 in
1.2073 ft
384 mm
38.4 cm
15.1181 in
1.2598 ft
-
Depth43.5 mm
4.35 cm
1.7126 in
0.1427 ft
64 mm
6.4 cm
2.5197 in
0.21 ft
-
Weight3.6 kg
7.94 lbs
4.5 kg
9.92 lbs
3 kg
6.61 lbs
Width with stand612.3 mm
61.23 cm
24.1063 in
2.0089 ft
612 mm
61.2 cm
24.0945 in
2.0079 ft
611.5 mm
61.15 cm
24.0748 in
2.0062 ft
Height with stand474.4 mm
47.44 cm
18.6772 in
1.5564 ft
384449 mm
38444.9 cm
15135.8 in
1261.32 ft
454.8 mm
45.48 cm
17.9055 in
1.4921 ft
Depth with stand181.8 mm
18.18 cm
7.1575 in
0.5965 ft
182 mm
18.2 cm
7.1654 in
0.5971 ft
204.9 mm
20.49 cm
8.0669 in
0.6722 ft
Weight with stand4.3 kg
9.48 lbs
5 kg
11.02 lbs
3.5 kg
7.72 lbs
Box width720 mm
72 cm
28.3465 in
2.3622 ft
--
Box height452 mm
45.2 cm
17.7953 in
1.4829 ft
--
Box depth125 mm
12.5 cm
4.9213 in
0.4101 ft
--
Box weight5.9 kg
13.01 lbs
--
Stand depth181.8 mm
18.18 cm
7.1575 in
0.5965 ft
182 mm
18.2 cm
7.1654 in
0.5971 ft
204.9 mm
20.49 cm
8.0669 in
0.6722 ft
ColorsCloud GrayBlackBlack

Ergonomics

Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.

VESA mountYesYesYes
VESA interface100 x 100 mm100 x 100 mm100 x 100 mm
Removable standYesYesYes
Height adjustmentNoNoNo
Landscape/portrait pivotNoNoNo
Left/right swivelNoNoNo
Forward/backward tiltYesYesYes
Forward tilt5 °5 °5 °
Backward tilt22 °20 °20 °
ThinkCentre M Series Tiny support
ThinkCentre M Series Nano support
Cable management
--

Audio

Information about the audio system - number and power of the built-in speakers, supported audio technologies.

Speakers2 x 3 W2 x 2 W2 x 2 W

Camera

Many contemporary desktop monitors and smart TV sets have built-in cameras.

CameraNoNoNo

Connectivity

Available connectivity ports, slots and interfaces.

Connectivity1 x HDMI 1.4
1 x D-sub
1 x 3.5 mm Audio Out
2 x HDMI 1.4
1 x DisplayPort 1.2
1 x 3.5 mm Audio Out
1 x HDMI 1.4
1 x D-sub
1 x 3.5 mm Audio Out
High-bandwidth Digital Content Protection (HDCP)High-bandwidth Digital Content Protection (HDCP) 1.4High-bandwidth Digital Content Protection (HDCP)

Features

Some additional functional features of the model.

Features3-side NearEdgeless design
AMD FreeSync technology
Flicker-free technology
Lenovo Artery
Natural Low Blue Light
AMA (Advanced Motion Accelerator)
Brightness Intelligence Gen 2 (B.I. Gen 2)
Coding Mode
Color Weakness Mode
Eye-CareU
Eye Reminder
Paper Mode
Flicker-free technology
Light Sensor
Low Blue Light Plus
VESA MediaSync Display
Acer Display Widget
AMD FreeSync technology
Blue Light Filter
Flicker-free technology
Zero Frame Design

Certificates, standards and licenses

Licenses from regulatory agencies, standards, certificates.

Certificates, standards and licensesCCC
China Energy Efficiency Standard Tier 2
Eyesafe Display Certification 2.0
RoHS (EU 2002/95/EC)
TÜV Rheinland Eye Comfort
TÜV Low Blue Light (Hardware Solution)
Windows Certification
Energy Star 8.0
EPEAT Bronze
EyeSafe Display 2.0
TCO Certified 9.0
TÜV Eye Comfort 2.0
TÜV Rheinland Flicker-free
TÜV Rheinland Low Blue Light (Hardware Solution)
CCC
CE
FCC
ISO9241-307
PSE
RoHS
VCCI-B

Operating and storage conditions

There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.

Operating temperature0 °C - 45 °C
32 °F - 113 °F
--
Operating humidity10 % - 80 %--
Operating altitude5000 m
16404.2 ft
--
Storage temperature-20 °C - 60 °C
-4 °F - 140 °F
--
Storage humidity5 % - 95 %--
Storage altitude12192 m
40000 ft
--

Accessories

Often the packaging of desktop monitors and smart TV sets includes accessories for them.

AccessoriesHDMI cableHDMI cableHDMI cable

Additional features

Information about other features.

Additional featuresAnti-theft stand lock slot - KensingtonAnti-theft stand lock slot - Kensington-
 Lenovo L27i-40BenQ GW2790Acer EK271 Ebmix