Products
LG 27UD58-B
Dell U2518D
Tested using Methodology v1.0
Updated Jun 07, 2024 07:37 PM
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Amazon.com
Tested using Methodology v1.1
Updated Jun 07, 2024 08:54 PM
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Size27"
Pixel Type
IPS
Variable Refresh Rate
FreeSync
Native Resolution3840 x 2160
Max Refresh Rate
60 Hz
Size25"
Pixel Type
IPS
Variable Refresh Rate
No VRR
Native Resolution2560 x 1440
Max Refresh Rate
60 Hz
Our Verdict
LG 27UD58-B
Dell U2518D
The Dell U2518D is much better than the LG 27UD58-B. The Dell U2518D supports HDR whereas the LG 27UD58-B doesn't. The Dell U2518D has better motion blur for slightly better gaming and significantly better ergonomics that allow you to place it more comfortably. The Dell U2518D can get brighter, and this is great for office use. On the other hand, the LG 27UD58-B has a better resolution which makes it slightly better for those who seek the extra detail. Also, the LG 27UD58-B has better input lag and better refresh rate.
Variants
- 27UD58-B (27")
- U2518D (25")
Check Price
27"
27UD58-B
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25"
U2518D
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27"
27UD58-B
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25"
U2518D
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27"
27UD58-B
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25"
U2518D
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27"
27UD58-B
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25"
U2518D
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27"
27UD58-B
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Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
7.2
7.6
Ergonomics
1.5
8.5
Vertical Viewing Angle
7.9
6.6
Resolution and Size
9.1
8.3
Horizontal Viewing Angle
6.8
8.2
Full Comparison
Design
Style
Design Picture
Size
27"
25"
Curved
No
No
Curve Radius
N/A
Not Curved
Weight (without stand)
9.9 lbs (4.5 kg)
7.7 lbs (3.5 kg)
Weight (with stand)
12.1 lbs (5.5 kg)
12.8 lbs (5.8 kg)
Stand
Stand Picture
Width
15.7" (39.9 cm)
11.5" (29.2 cm)
Depth
8.0" (20.3 cm)
7.9" (20.1 cm)
Ergonomics
1.5
8.5
Ergonomics Picture
Height Adjustment
0.0" (0.0 cm)
5.1" (13.0 cm)
Switch Portrait/Landscape
No
Yes, Both Ways
Swivel Range
N/A
-30° to 30°
Tilt Range
-20° to 5°
-22.5° to 2.5°
Back
Back Picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders Picture
Borders
0.9" (2.3 cm)
0.3" (0.8 cm)
Thickness
Thickness Picture
Thickness (with stand)
5.9" (15.0 cm)
5.4" (13.7 cm)
Thickness (without stand)
1.8" (4.6 cm)
2.0" (5.1 cm)
Build Quality
6.5
7.5
Build Quality Picture
Picture Quality
Contrast
6.0
6.3
Checkerboard Picture
LCD Type
IPS
IPS
Native Contrast
989 : 1
1,187 : 1
Contrast With Local Dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming Video
Local Dimming
No
No
Backlight
Direct
Direct
SDR Peak Brightness
6.5
8.2
SDR Real Scene
220 cd/m²
406 cd/m²
SDR Peak 2% Window
239 cd/m²
423 cd/m²
SDR Peak 10% Window
241 cd/m²
426 cd/m²
SDR Peak 25% Window
240 cd/m²
426 cd/m²
SDR Peak 50% Window
240 cd/m²
426 cd/m²
SDR Peak 100% Window
239 cd/m²
426 cd/m²
SDR Sustained 2% Window
241 cd/m²
421 cd/m²
SDR Sustained 10% Window
241 cd/m²
424 cd/m²
SDR Sustained 25% Window
240 cd/m²
425 cd/m²
SDR Sustained 50% Window
240 cd/m²
425 cd/m²
SDR Sustained 100% Window
240 cd/m²
425 cd/m²
SDR ABL
0.000
0.000
HDR Peak Brightness
0.0
7.2
HDR Real Scene
N/A
498 cd/m²
HDR Peak 2% Window
N/A
476 cd/m²
HDR Peak 10% Window
N/A
520 cd/m²
HDR Peak 25% Window
N/A
545 cd/m²
HDR Peak 50% Window
N/A
562 cd/m²
HDR Peak 100% Window
N/A
584 cd/m²
HDR Sustained 2% Window
N/A
279 cd/m²
HDR Sustained 10% Window
N/A
304 cd/m²
HDR Sustained 25% Window
N/A
317 cd/m²
HDR Sustained 50% Window
N/A
328 cd/m²
HDR Sustained 100% Window
N/A
340 cd/m²
HDR ABL
N/A
0.012
Horizontal Viewing Angle
6.8
8.2
Horizontal Viewing Angle Video
Horizontal Chroma Graph
Color Washout From Left
44°
Color Washout From Right
47°
Horizontal Color Shift Picture
Horizontal Hue Graph
Color Shift From Left
34°
50°
Color Shift From Right
30°
55°
Horizontal Brightness Picture
Horizontal Black Level Picture
Horizontal Lightness Graph
Brightness Loss From Left
42°
46°
Brightness Loss From Right
38°
49°
Black Level Raise From Left
75°
70°
Black Level Raise From Right
75°
70°
Curve Radius
N/A
Gamma Shift From Left
45°
Gamma Shift From Right
53°
Vertical Viewing Angle
7.9
6.6
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
34°
Color Washout From Above
34°
Vertical Color Shift Picture
Vertical Hue Graph
Color Shift From Below
25°
34°
Color Shift From Above
24°
37°
Vertical Brightness Picture
Vertical Black Level Picture
Vertical Lightness Graph
Brightness Loss From Below
32°
39°
Brightness Loss From Above
33°
39°
Black Level Raise From Below
75°
23°
Black Level Raise From Above
75°
52°
Gamma Shift From Below
33°
Gamma Shift From Above
34°
Gray Uniformity
8.6
8.6
50% Uniformity Picture
50% Std. Dev.
3.494%
3.180%
50% DSE
0.110%
0.109%
5% Uniformity Picture
5% Std. Dev.
0.443%
0.340%
5% DSE
0.053%
0.046%
Black Uniformity
4.6
5.9
Native Black Uniformity Picture
Native Std. Dev.
2.916%
2.053%
Black Uniformity Picture With Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Pre Calibration
8.3
9.2
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Custom
Standard
Luminance
254 cd/m²
275 cd/m²
Luminance Settings
100
75
Contrast Setting
70
75
RGB Controls
50-50-50
100-100-100
Gamma Setting
No Gamma Setting
Color Temperature
6,521 K
6,720 K
White Balance dE
2.28
1.28
Color dE
2.12
1.15
Gamma
2.15
2.19
Post Calibration
9.4
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom
Custom Color
Luminance
100 cd/m²
99 cd/m²
Luminance Settings
20
17
Contrast Setting
70
75
RGB Controls
45-44-50
99-98-100
Gamma Setting
No Gamma Setting
Color Temperature
6,368 K
6,513 K
White Balance dE
0.89
0.45
Color dE
0.64
0.48
Gamma
2.18
2.18
SDR Color Gamut
8.7
8.7
Color Gamut sRGB Picture
sRGB xy
98.4%
98.1%
Color Gamut ARGB Picture
Adobe RGB xy
75.4%
76.1%
sRGB Picture Mode
Custom Color
Adobe RGB Picture Mode
Custom Color
SDR Color Volume
8.8
8.9
sRGB Color Volume ITP Picture
sRGB In ICtCp
95.9%
95.9%
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
79.3%
80.8%
sRGB Picture Mode
Custom Color
Adobe RGB Picture Mode
Custom Color
HDR Color Gamut
0.0
6.5
Wide Color Gamut
No
No
Color Gamut DCI-P3 Picture
DCI P3 xy
N/A
72.6%
Color Gamut Rec.2020 Picture
Rec. 2020 xy
N/A
56.9%
DCI P3 Picture Mode
Custom Color
Rec. 2020 Picture Mode
Custom Color
HDR Color Volume
0.0
5.9
P3 Color Volume ITP Picture
DCI-P3 In ICtCp
N/A
66.6%
2020 Color Volume ITP Picture
Rec. 2020 In ICtCp
N/A
49.6%
DCI P3 Picture Mode
Custom Color
Rec. 2020 Picture Mode
Custom Color
Image Retention
10
10
Image Retention Picture
IR After 0 Min Recovery
0.00%
0.00%
IR After 2 Min Recovery
0.00%
0.00%
IR After 4 Min Recovery
0.00%
0.00%
IR After 6 Min Recovery
0.00%
0.00%
IR After 8 Min Recovery
0.00%
0.00%
IR After 10 Min Recovery
0.00%
0.00%
Gradient
9.8
9.4
Gradient Picture
Color Depth
10 Bit
10 Bit
Color Bleed
10
10
Color Bleed Horizontal
Pixel Row Error
0.000%
0.000%
Color Bleed Vertical
Pixel Column Error
0.000%
0.001%
Reflections
7.0
6.9
Average Room
Average Room Off Picture
Bright Room Off Picture
Screen Finish
Matte
Total Reflections
6.3%
Indirect Reflections
3.3%
Calculated Direct Reflections
3.0%
Text Clarity
8.0
ClearType On
Pixel Type
IPS
IPS
ClearType Off
Pixels
Sub-Pixel Layout
RGB
Motion
Response Time @ Max Refresh Rate
8.2
7.7
Motion Blur Picture
Motion Blur Picture
Response Time Chart
Response Time Table
Best Overdrive Setting
Middle
Normal
Rise / Fall Time
5.6 ms
8.0 ms
Total Response Time
16.8 ms
15.5 ms
Overshoot Error
1.7%
Dark Rise / Fall Time
8.5 ms
Dark Total Response Time
16.7 ms
Dark Overshoot Error
3.2%
Response Time @ 60Hz
7.7
Motion Blur Picture
Response Time Table
Best Overdrive Setting
Normal
Rise / Fall Time
8.0 ms
Total Response Time
15.5 ms
Overshoot Error
1.7%
Dark Rise / Fall Time
8.5 ms
Dark Total Response Time
16.7 ms
Dark Overshoot Error
3.2%
Image Flicker
7.5
10
Backlight Picture
Flicker-Free
Yes
No
PWM Dimming Frequency
0 Hz
940 Hz
Black Frame Insertion (BFI)
No
No
BFI Picture
BFI Frequency Picture
BFI Maximum Frequency
N/A
N/A
BFI Minimum Frequency
N/A
N/A
Black Frame Insertion (BFI)
0.0
Black Frame Insertion (BFI)
No
No
BFI Picture
BFI Frequency Picture
BFI Maximum Frequency
N/A
N/A
BFI Minimum Frequency
N/A
N/A
Refresh Rate
7.8
5.9
Variable Refresh Rate
FreeSync
No VRR
Native
60 Hz
Max Refresh Rate
60 Hz
60 Hz
Factory Overclock
N/A
Variable Refresh Rate
FreeSync
No
FreeSync
No
G-SYNC
Partial
No
VRR Maximum
60 Hz
N/A
VRR Minimum
40 Hz
No VRR
VRR Maximum With OC
N/A
VRR Supported Connectors
DisplayPort
No VRR
Inputs
Input Lag
9.0
8.0
Native Resolution
8.8 ms
15.8 ms
Non-Native Res @ Native Refresh
8.8 ms
Native Resolution @ 60Hz
8.8 ms
15.8 ms
Variable Refresh Rate
9.5 ms
N/A
Variable Refresh Rate @ 60Hz
N/A
10 Bit HDR
N/A
19.8 ms
Black Frame Insertion (BFI)
N/A
N/A
Resolution And Size
9.1
8.3
Native Resolution
3840 x 2160
2560 x 1440
Aspect Ratio
16:9
16:9
Megapixels
8.3 MP
3.7 MP
Pixel Density
164 PPI
118 PPI
Screen Diagonal
26.9"
25.0"
Screen Area
310 in²
266 in²
Inputs
Inputs 1
Inputs 2
Total Inputs
DisplayPort
1 (DP 1.2)
1 (DP 1.2)
Mini DisplayPort
No
1 (DP 1.2)
HDMI
2 (HDMI 2.0)
1 (HDMI 2.0)
DVI
No
No
VGA
No
No
DisplayPort Out
No
1 (DP 1.2)
USB
No
4 (USB 3.0)
USB C
No
No
Analog Audio Out 3.5mm
1
1
Microphone In 3.5mm
No
No
Digital Optical Audio Out
No
No
Analog Audio Out RCA
No
No
Power Supply
Internal
Internal
Features
Additional Features
RGB Illumination
No
Speakers
No
No
HDR10
No
Yes
Multiple Input Display
No
No
On-Screen Display (OSD)
OSD Picture
Controls
Controls Picture
In The Box
In The Box Picture
Check Price
27"
27UD58-B
SEE PRICE
Amazon.com
25"
U2518D
SEE PRICE
Amazon.com
27"
27UD58-B
SEE PRICE
Walmart.com
25"
U2518D
SEE PRICE
BestBuy.com
27"
27UD58-B
SEARCH
B&H
25"
U2518D
SEE PRICE
Walmart.com
27"
27UD58-B
SEARCH
BestBuy.com
25"
U2518D
SEARCH
B&H
27"
27UD58-B
SEARCH
LG.com
LG 27UD58-B
Dell U2518D
Comments
LG 27UD58-B vs Dell U2518D: Main Discussion
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