Compare Lenovo E28u-20 vs ThinkVision M15 Mobile Monitor vs Lenovo L27i-30
Connectivity
Ports
2x 3.5 mm Audio Out, 2x HDMI 2.0, 1x DisplayPort 1.4
2x USB-C 3.2 Gen1 (DP 1.2 Alt Mode)
1x 3.5 mm Audio Out, 1x HDMI 1.4, 1x D-sub
Construction
Adjustment | Height
200 mm / 7.874 in
N/A
Adjustment | Pivot
-90° ~ 90°
N/A
Adjustment | Swivel
-360° ~ 360°
N/A
Adjustment | Tilt
-5° ~ 22°
0° ~ 90°
-5° ~ 22°
Camera
No
No
Colors
Raven Black
Black
Speakers
2x 2W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm
Dimensions
Bezels
89.03% screen-to-body ratio
7.3mm (sides / top), 31.9mm (bottom)
89.28% screen-to-body ratio
Size | Depth
1.93 in / 48.9 mm w/o stand, 8.66 in / 220 mm w/ stand
108.4mm / 4.27"
1.7 in / 43.2 mm w/o stand, 6.89 in / 175 mm w/ stand
Size | Height
14.71 in / 373.7 mm w/o stand, 14.98 in / 380.6 mm w/ stand
235.5mm / 9.27" (lowest position)
14.48 in / 367.7 mm w/o stand, 18.73 in / 475.8 mm w/ stand
Size | Width
25.07 in / 636.9 mm
360mm / 14.17"
24.11 in / 612.5 mm
Weight
4.6 kg / 10 lbs w/o stand , 6.8 kg / 15 lbs w/ stand
0.86kg / 1.90lbs
3.6 kg / 8 lbs w/o stand , 4.41 kg / 10 lbs w/ stand
Display
Aspect Ratio
16:9
16:9
16:9
Brightness
300 nits
250 nits
250 nits
Contrast Ratio
1000:1 (static), 3000000:1 (dynamic)
1000:1
1000:1 (static), 3000000:1 (dynamic)
Display Backlight
W-LED
WLED edge-lit
W-LED
Display Color Depth
10 bits (8 bits + FRC), 1073741824 colors
8-bit (16.7 Million colors)
8 bits (6 bits + FRC), 16777216 colors
Display Diagonal
28" (28 in / 711.2 mm)
15.6 inch
27" (27 in / 685.891 mm)
Display Type
AAS IPS, Anti-glare/Matte, Innolux
IPS, anti-glare
IPS, Anti-glare/Matte
Gamut
90% DCI-P3, 99% sRGB
45% NTSC
72% NTSC
Pixel Density
157 ppi
141 ppi
81 ppi
Pixel Pitch
0.16 mm
0.1793 mm x 0.1793 mm
0.311 mm
Refresh Rate
60 Hz
60 Hz
48 Hz ~ 75 Hz
Resolution
4K (3840x2160)
FHD (1920x1080)
FHD (1920x1080)
Response Time
4 ms (min) / 6 ms (avg) / 14 ms (max)
6ms (Extreme Mode) / 14ms (Normal Mode)
4 ms (min) / 6 ms (avg)
Viewing Angle
178° H / 178° V
178° / 178°
178° H / 178° V
Function
HDR
HDR10
Licenses
CCC, China Energy Efficiency Standard Tier 2, ENERGY STAR, Eyesafe Display Certification, RoHS (EU 2002/95/EC), TCO 9.0, TCO Edge 2.0, TÜV Low Blue Light (Hardware Solution), TÜV Rheinland Eye Comfort, Volatile Organic Compound Certification, Windows C...
CCC, China Energy Efficiency Standard Tier 1, RoHS (EU 2002/95/EC), TÜV Rheinland Eye Comfort, WHQL (Windows 10; Windows 8.1; Windows 8; Windows 7)
Operating Humidity
10 % ~ 80 %
10 % ~ 80 %
Operating Temperature
0 °C ~ 45 °C , 32 °F ~ 113 °F
0 °C ~ 45 °C , 32 °F ~ 113 °F
Variable Framerate
AMD FreeSync
AMD FreeSync
Video
Flicker-free technology, Natural Low Blue Light, 3-side NearEdgeless design
Flicker-free technology, Low Blue Light, 3-side NearEdgeless design
Performance
Power Consumption
30 W (average) / 50 W (max) / 25.25 W (eco) / 0.5 W (sleep) / 0.3 W (off)
8W (typical) / 9.5W (max)
18 W (average) / 24 W (max) / 0.5 W (sleep) / 0.3 W (off)
Power Supply
65 W Power Delivery
Production
Accessory
HDMI cable
HDMI cable
Availability
2021 Q3
Debut
2022
2021-06 (MWC 2021)
2021
Reviews
Neofiliac score
64%
26%
Pros
- Rich color reproduction
- Stand with tilt, swivel, pivot, and height adjustments
- High 1000:1 contrast ratio
- 10-bit display panel
- Build-in speakers included
- High 1000:1 contrast ratio
Cons
- Older ThinkVision styling
- No publicized HDR support
- Only tilt adjustment
- 8-bit display panel
- Display panel not very bright
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