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- Table of Contents
- Top
- Main Differences
- Design
- Picture Quality
- Motion
- Inputs
- Features
- Comments
LG 27UD68-B vs LG UltraFine 4k
Side-by-Side Comparison
Products
LG 27UD68-B
LG UltraFine 4k
Tested using Methodology v1.0
Updated Feb 15, 2023 07:49 PM
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Amazon.comTested using Methodology v1.0
Updated Apr 15, 2024 02:42 PM
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Amazon.com
Size27"
LCD TypeIPS
Variable Refresh RateFreeSync
Native Resolution3840 x 2160
Native Refresh Rate60 Hz
Size24"
LCD TypeIPS
Variable Refresh RateNo
Native Resolution3840 x 2160
Native Refresh Rate60 Hz
Variants
- 27UD68P-B (27" Black)
- 27UD68-W (27" White)
- UltraFine 4k (23.7")
Our Verdict
LG 27UD68-B
LG UltraFine 4k
The LG 27UD68 is a bit better than the LG UltraFine 4k for most users. The 27UD68 has better ergonomics, better reflection handling, and a flicker-free backlight. The 27UD68 also delivers better gaming performance, with less input lag and FreeSync variable refresh rate support.
Check Price
27" Black
27UD68P-B
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Finding store23.7"
UltraFine 4k
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Amazon.com27" White
27UD68-W
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UltraFine 4k
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Amazon.comMain Differences for
Threshold
Mixed Usage
7.6
7.4
Ergonomics
6.7
4.7
Full Comparison
Design
Style
Design Picture
Size
27"
24"
Curved
No
No
Curve radius
N/A
N/A
Weight (without stand)
9.9 lbs (4.5 kg)
11.5 lbs (5.2 kg)
Weight (with stand)
12.6 lbs (5.7 kg)
15.4 lbs (7.0 kg)
Stand
Stand picture
Width
19.9" (50.5 cm)
7.7" (19.6 cm)
Depth
9.4" (23.9 cm)
9.1" (23.1 cm)
Ergonomics
6.7
4.7
Ergonomics picture
Height Adjustment
4.8" (12.2 cm)
4.3" (10.9 cm)
Switch portrait/landscape
Yes
No
Swivel Range
N/A
N/A
Tilt Range
-20° to 5°
-25° to 5°
Back
Back picture
Wall Mount
VESA 100x100
VESA 100x100
Borders
Borders picture
Borders
0.4" (1.0 cm)
0.7" (1.8 cm)
Thickness
Thickness picture
Thickness (with stand)
5.7" (14.5 cm)
5.7" (14.5 cm)
Thickness (without stand)
1.5" (3.8 cm)
2.0" (5.1 cm)
Build Quality
6.5
7.5
Build Quality picture
Picture Quality
Contrast
6.3
6.6
Checkerboard Picture
LCD Type
IPS
IPS
Native Contrast
1,165 : 1
1,445 : 1
Contrast with local dimming
N/A
N/A
Local Dimming
0.0
0.0
Local Dimming Video
Local Dimming
No
No
Backlight
Edge
Edge
SDR Peak Brightness
7.6
8.6
SDR Real Scene
313 cd/m²
554 cd/m²
SDR Peak 2% Window
327 cd/m²
563 cd/m²
SDR Peak 10% Window
328 cd/m²
563 cd/m²
SDR Peak 25% Window
329 cd/m²
563 cd/m²
SDR Peak 50% Window
329 cd/m²
563 cd/m²
SDR Peak 100% Window
329 cd/m²
562 cd/m²
SDR Sustained 2% Window
243 cd/m²
562 cd/m²
SDR Sustained 10% Window
239 cd/m²
562 cd/m²
SDR Sustained 25% Window
251 cd/m²
562 cd/m²
SDR Sustained 50% Window
285 cd/m²
561 cd/m²
SDR Sustained 100% Window
327 cd/m²
561 cd/m²
SDR ABL
0.000
0.000
HDR Peak Brightness
0.0
0.0
HDR Real Scene
N/A
N/A
HDR Peak 2% Window
N/A
N/A
HDR Peak 10% Window
N/A
N/A
HDR Peak 25% Window
N/A
N/A
HDR Peak 50% Window
N/A
N/A
HDR Peak 100% Window
N/A
N/A
HDR Sustained 2% Window
N/A
N/A
HDR Sustained 10% Window
N/A
N/A
HDR Sustained 25% Window
N/A
N/A
HDR Sustained 50% Window
N/A
N/A
HDR Sustained 100% Window
N/A
N/A
HDR ABL
N/A
N/A
Horizontal Viewing Angle
6.8
7.3
Horizontal Viewing Angle Video
Horizontal Color Shift Picture
Color Shift from Left
35°
37°
Color Shift from Right
39°
40°
Horizontal Brightness Picture
Brightness from Left
41°
45°
Brightness from Right
35°
48°
Horizontal Black Level Picture
Black Level from Left
75°
75°
Black Level from Right
75°
75°
Curve Radius
N/A
N/A
Vertical Viewing Angle
8.2
8.3
Vertical Viewing Angle Video
Vertical Color Shift Picture
Color Shift from Below
30°
29°
Color Shift from Above
25°
29°
Vertical Brightness Picture
Brightness from Below
38°
37°
Brightness from Above
34°
37°
Vertical Black Level Picture
Black Level from Below
75°
75°
Black Level from Above
75°
75°
Gray Uniformity
8.6
8.7
50% Uniformity Picture
50% Std. Dev.
3.111%
2.882%
50% DSE
0.111%
0.109%
5% Uniformity Picture
5% Std. Dev.
0.377%
0.396%
5% DSE
0.042%
0.053%
Black Uniformity
4.8
6.3
Native Black Uniformity Picture
Native Std. Dev.
2.778%
1.805%
Black Uniformity Picture with Local Dimming
Std. Dev. w/ L.D.
N/A
N/A
Pre Calibration
8.4
7.7
Pre Calibration Picture
Pre Gamma Curve Picture
Pre Color Picture
Picture Mode
Custom
N/A
Luminance
318 cd/m²
292 cd/m²
Luminance Settings
100
50
Contrast Setting
70
N/A
RGB controls
50-50-50
N/A
Color Temperature
6,563 K
6,427 K
White Balance dE
1.68
2.02
Color dE
2.65
3.54
Gamma
2.09
2.24
Post Calibration
9.4
9.7
Post Calibration Picture
Post Gamma Curve Picture
Post Color Picture
Picture Mode
Custom
N/A
Luminance
100 cd/m²
103 cd/m²
Luminance Settings
10
18
Contrast Setting
70
N/A
RGB Controls
53-50-50
N/A
Color Temperature
6,374 K
6,455 K
White Balance dE
0.88
0.51
Color dE
0.71
0.29
Gamma
2.27
2.18
SDR Color Gamut
8.8
9.3
Color Gamut sRGB Picture
sRGB xy
97.8%
99.6%
Color Gamut ARGB Picture
Adobe RGB xy
76.5%
84.9%
SDR Color Volume
8.9
9.4
sRGB Color Volume ITP picture
sRGB in ICtCp
95.8%
97.8%
Adobe RGB Color Volume ITP Picture
Adobe RGB in ICtCp
81.8%
89.5%
HDR Color Gamut
0.0
0.0
Wide Color Gamut
No
N/A
Color Gamut DCI-P3 Picture
DCI P3 xy
N/A
N/A
Color Gamut Rec.2020 Picture
Rec. 2020 xy
N/A
N/A
HDR Color Volume
0.0
0.0
P3 Color Volume ITP Picture
DCI-P3 in ICtCp
N/A
N/A
2020 Color Volume ITP Picture
Rec. 2020 in ICtCp
N/A
N/A
Image Retention
1.9
5.6
Image Retention Picture
IR after 0 min recovery
1.11%
0.37%
IR after 2 min recovery
0.41%
0.10%
IR after 4 min recovery
0.12%
0.00%
IR after 6 min recovery
0.09%
0.00%
IR after 8 min recovery
0.06%
0.00%
IR after 10 min recovery
0.00%
0.00%
Gradient
9.9
9.9
Gradient Picture
Color Depth
10 Bit
10 Bit
Color Bleed
10
10
Color bleed horizontal
Pixel row error
0.000%
0.004%
Color bleed vertical
Pixel column error
0.000%
0.004%
Reflections
7.0
6.0
Average room
Average room off picture
Bright room off picture
Motion
Motion Blur
8.4
8.5
Motion Blur Picture
Response Time Chart
80% Response Time
5.0 ms
5.6 ms
100% Response Time
16.6 ms
13.9 ms
Best Overdrive Setting
Middle
N/A
Image Flicker
7.5
5.7
Backlight Picture
Flicker-free
Yes
No
PWM Dimming Frequency
0 Hz
700 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
Refresh Rate
7.8
6.7
Variable Refresh Rate
FreeSync
No
Native Refresh Rate
60 Hz
60 Hz
Factory Overclock
N/A
N/A
Variable Refresh Rate
FreeSync
No
G-SYNC Compatible
Yes
No
VRR Maximum
60 Hz
N/A
VRR Minimum
40 Hz
N/A
VRR Maximum With OC
N/A
N/A
VRR Supported Connectors
DisplayPort
N/A
Inputs
Input Lag
8.9
8.4
Native Resolution
9.3 ms
13.2 ms
Non-Native Res @ Native Refresh
9.3 ms
11.3 ms
Native Resolution @ 60 Hz
9.3 ms
13.2 ms
Variable Refresh Rate
8.7 ms
N/A
10 bit HDR
N/A
N/A
Black Frame Insertion (BFI)
N/A
N/A
Resolution and Size
9.1
8.9
Native Resolution
3840 x 2160
3840 x 2160
Aspect Ratio
16:9
16:9
Megapixels
8.3 MP
8.3 MP
Pixel Density
164 PPI
186 PPI
Screen Diagonal
26.9"
23.7"
Screen Area
310 in²
240 in²
Inputs
Inputs 1
Inputs 2
Total Inputs
DisplayPort
1 (DP 1.2)
No
Mini DisplayPort
No
No
HDMI
2 (HDMI 2.0)
No
DVI
No
No
VGA
No
No
DisplayPort Out
No
No
USB
No
No
USB C
No
5 (2x Thunderbolt 3 with PD, 3x USB-C)
Analog Audio Out 3.5mm
1
No
Microphone In 3.5mm
No
No
Digital Optical Audio Out
No
No
Analog Audio Out RCA
No
No
Power Supply
External Brick
Internal
Features
Additional Features
Speakers
No
Yes
HDR10
No
No
Multiple input display
PBP
No
On-Screen Display (OSD)
OSD picture
Controls
Controls picture
In The Box
In The Box picture
Check Price
27" Black
27UD68P-B
Searching
Finding store23.7"
UltraFine 4k
SEE PRICE
Amazon.com27" White
27UD68-W
Searching
Finding store23.7"
UltraFine 4k
SEARCH
Amazon.com
LG 27UD68-B
LG UltraFine 4k
Comments
LG 27UD68-B vs LG UltraFine 4k: Main Discussion
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