Products
ASUS ROG Swift OLED PG42UQ
LG C4 42 OLED
Tested using Methodology v1.2
Updated Jun 13, 2025 07:29 PM
SEE PRICE
Amazon.com
Tested using Methodology v2.1.1
Updated Nov 07, 2025 02:28 PM
SEE PRICE
Amazon.com
Max Refresh Rate
138 Hz
Size
42"
Panel Type
OLED
Native Resolution
3840 x 2160
Variable Refresh Rate
Yes
HDR10
Yes
Max Refresh Rate
144 Hz
Size
42"
Panel Type
OLED
Native Resolution
3840 x 2160
Variable Refresh Rate
Yes
HDR10
Yes
Our Verdict
ASUS ROG Swift OLED PG42UQ
LG C4 42 OLED
The ASUS ROG Swift OLED PG42UQ and the LG C4 42 OLED are both 42-inch OLED displays. The LG is a better choice if you plan to use your display to watch lots of videos, as it has an integrated smart TV system and a remote. It also has an eARC/ARC port, so you can easily connect it to a soundbar or receiver. However, the ASUS gets brighter in HDR, so it's a better choice if you do lots of HDR gaming in a brighter room.
Variants
- ROG Swift OLED PG42UQ (42")
- OLED42C4PUA (42")
Check Price
42"
ROG Swift OLED PG42UQ
SEE PRICE
Amazon.com
42"
OLED42C4PUA
SEE PRICE
Amazon.com
42"
ROG Swift OLED PG42UQ
SEE PRICE
BestBuy.com
42"
OLED42C4PUA
SEE PRICE
LG.com
42"
ROG Swift OLED PG42UQ
SEE PRICE
Walmart.com
42"
OLED42C4PUA
SEE PRICE
Walmart.com
42"
ROG Swift OLED PG42UQ
SEARCH
B&H
42"
OLED42C4PUA
SEARCH
B&H
42"
ROG Swift OLED PG42UQ
SEARCH
ASUS
42"
OLED42C4PUA
SEARCH
BestBuy.com
Main Differences for
Mixed Usage
Mixed Usage
Threshold
Mixed Usage
8.4
Full Comparison
Design
Style
Design Picture
Compare High-Res
Compare High-Res
Curved
No
No
Curve Radius
Not Curved
Not Curved
Accelerated Longevity Test
Uniformity Pictures
Longevity Graph
Build Quality
9.0
9.0
Build Quality Picture
Compare High-Res
Compare High-Res
Ergonomics
1.3
0.7
Ergonomics Picture
Compare High-Res
Compare High-Res
Back Picture
Compare High-Res
Compare High-Res
Height Adjustment
0.0" (0.0 cm)
0.0" (0.0 cm)
Min Height To Top Of Panel
22.4" (57.0 cm)
Tilt Range
-5° to 5°
No Tilt
Rotate Portrait/Landscape
No
No
Swivel Range
No swivel
No swivel
Wall Mount
VESA 300x300
VESA 300x200
Stand
Stand Picture
Compare High-Res
Compare High-Res
Thickness Picture
Compare High-Res
Compare High-Res
Base Width
28.3" (71.9 cm)
28.3" (71.8 cm)
Base Depth
10.0" (25.5 cm)
6.7" (17.1 cm)
Thickness (With Display)
6.0" (15.2 cm)
3.9" (10.0 cm)
Weight (With Display)
32.6 lbs (14.8 kg)
21.6 lbs (9.8 kg)
Display
Display Picture
Compare High-Res
Compare High-Res
Size
42"
42"
Housing Width
36.7" (93.3 cm)
36.7" (93.2 cm)
Housing Height
22.0" (55.9 cm)
21.3" (54.0 cm)
Thickness (Without Stand)
1.7" (4.2 cm)
1.5" (3.9 cm)
Weight (Without Stand)
30.0 lbs (13.6 kg)
21.2 lbs (9.6 kg)
Borders Size (Bezels)
0.3" (0.7 cm)
0.2" (0.6 cm)
Controls
Controls Picture
Compare High-Res
Compare High-Res
In The Box
In The Box Picture
Compare High-Res
Compare High-Res
Power Supply
Internal
Internal
Picture Quality
Contrast
10
10
Checkerboard Picture
Compare High-Res
Compare High-Res
Native Contrast
Inf : 1
Inf : 1
Contrast With Local Dimming
N/A
Inf : 1
Local Dimming
10
10
Local Dimming Video
Local Dimming
No
No
Backlight
No Backlight
No Backlight
SDR Brightness
6.1
6.4
Real Scene
203 cd/m²
217 cd/m²
Peak 2% Window
191 cd/m²
227 cd/m²
Peak 10% Window
195 cd/m²
229 cd/m²
Peak 25% Window
196 cd/m²
231 cd/m²
Peak 50% Window
197 cd/m²
231 cd/m²
Peak 100% Window
198 cd/m²
208 cd/m²
Sustained 2% Window
188 cd/m²
223 cd/m²
Sustained 10% Window
192 cd/m²
228 cd/m²
Sustained 25% Window
194 cd/m²
230 cd/m²
Sustained 50% Window
195 cd/m²
230 cd/m²
Sustained 100% Window
196 cd/m²
192 cd/m²
Automatic Brightness Limiting (ABL)
0.002
0.007
Minimum Brightness
16 cd/m²
37 cd/m²
HDR Brightness
7.8
7.2
EOTF
Compare High-Res
Compare High-Res
VESA DisplayHDR Certification
No Certification
No Certification
Real Scene
792 cd/m²
552 cd/m²
Peak 2% Window
774 cd/m²
738 cd/m²
Peak 10% Window
796 cd/m²
744 cd/m²
Peak 25% Window
408 cd/m²
445 cd/m²
Peak 50% Window
204 cd/m²
269 cd/m²
Peak 100% Window
115 cd/m²
175 cd/m²
Sustained 2% Window
737 cd/m²
726 cd/m²
Sustained 10% Window
691 cd/m²
687 cd/m²
Sustained 25% Window
360 cd/m²
408 cd/m²
Sustained 50% Window
202 cd/m²
268 cd/m²
Sustained 100% Window
114 cd/m²
141 cd/m²
Automatic Brightness Limiting (ABL)
0.120
0.101
Gray Uniformity
8.9
8.7
50% Uniformity Picture
Compare High-Res
Compare High-Res
50% Std. Dev.
1.003%
1.571%
50% DSE
0.117%
0.119%
Black Uniformity
10
10
Native Black Uniformity Picture
Compare High-Res
Compare High-Res
Native Std. Dev.
0.213%
0.161%
Black Uniformity Picture With Local Dimming
Compare High-Res
Compare High-Res
Std. Dev. w/ L.D.
N/A
N/A
Color Accuracy (Pre-Calibration)
8.0
9.3
Pre Calibration Picture
Compare High-Res
Compare High-Res
Pre Gamma Curve Picture
Compare High-Res
Compare High-Res
Pre Color Picture
Compare High-Res
Compare High-Res
Picture Mode
sRGB
Game Optimizer
sRGB Gamut Area xy
110.2%
99.8%
White Balance dE (Avg.)
2.03
1.47
Color Temperature (Avg.)
6,397 K
6,478 K
Gamma (Avg.)
2.28
2.21
Color dE (Avg.)
1.78
1.11
Contrast Setting
N/A
85
RGB Settings
Default
Warm 50
Gamma Setting
2.2
2.2
Brightness Setting
60
50
Measured Brightness
122 cd/m²
132 cd/m²
Brightness Locked
No
No
Color Accuracy (Post-Calibration)
9.0
9.5
Post Calibration Picture
Compare High-Res
Compare High-Res
Post Gamma Curve Picture
Compare High-Res
Compare High-Res
Post Color Picture
Compare High-Res
Compare High-Res
Picture Mode
User
Game Optimizer
sRGB Gamut Area xy
105.5%
102.6%
White Balance dE (Avg.)
0.62
0.67
Color Temperature (Avg.)
6,500 K
6,524 K
Gamma (Avg.)
2.21
2.18
Color dE (Avg.)
1.25
0.78
Contrast Setting
80
85
RGB Settings
100-90-76
High (-1, 1, 1), Low (0, 1, -1)
Gamma Setting
2.2
2.2
Brightness Setting
47
33
Measured Brightness
100 cd/m²
100 cd/m²
SDR Color Gamut
9.6
9.6
sRGB Color Gamut Picture
Compare High-Res
Compare High-Res
sRGB Coverage xy
100.0%
100.0%
sRGB Picture Mode
User
Game Optimizer
Adobe RGB Color Gamut Picture
Compare High-Res
Compare High-Res
Adobe RGB Coverage xy
86.9%
88.7%
Adobe RGB Picture Mode
User
Game Optimizer
HDR Color Gamut
8.8
9.2
Wide Color Gamut
Yes
Yes
DCI-P3 Color Gamut Picture
Compare High-Res
Compare High-Res
DCI-P3 Coverage xy
95.5%
97.9%
DCI-P3 Picture Mode
Asus Gaming HDR
Game Optimizer
Rec. 2020 Color Gamut Picture
Compare High-Res
Compare High-Res
Rec. 2020 Coverage xy
68.8%
70.4%
Rec. 2020 Picture Mode
Asus Gaming HDR
Game Optimizer
HDR Color Volume
8.0
7.9
DCI-P3 Color Volume ITP Picture
Compare High-Res
Compare High-Res
1,000 cd/m² DCI-P3 Coverage ICtCp
81.9%
76.9%
DCI-P3 Picture Mode
Asus Gaming HDR
Game Optimizer
Rec. 2020 Color Volume ITP Picture
Compare High-Res
Compare High-Res
10,000 cd/m² Rec. 2020 Coverage ICtCp
59.2%
33.7%
Rec. 2020 Picture Mode
Asus Gaming HDR
Game Optimizer
Viewing Angle
8.7
8.8
Viewing Angle Video
Chroma Graph
Compare High-Res
Compare High-Res
Color Washout From Left
47°
47°
Color Washout From Right
47°
57°
Hue Graph
Compare High-Res
Compare High-Res
Color Shift From Left
34°
34°
Color Shift From Right
34°
39°
Lightness Graph
Compare High-Res
Compare High-Res
Brightness Loss From Left
65°
62°
Brightness Loss From Right
63°
62°
Black Level Raise From Left
70°
70°
Black Level Raise From Right
70°
70°
Gamma Shift From Left
68°
65°
Gamma Shift From Right
65°
65°
Text Clarity
6.5
7.0
ClearType On
Compare High-Res
Compare High-Res
ClearType Off
Compare High-Res
Compare High-Res
Panel Type
OLED
OLED
Pixels
Compare High-Res
Compare High-Res
Subpixel Layout
RWBG
RWBG
Direct Reflections
5.1
Ring Light Picture
Direct Reflections Graph
Peak Direct Reflection Intensity
51.7%
Screen Finish
Matte
Glossy
Ambient Black Level Raise
9.1
Black Level Raise Picture
Ambient Black Level Raise Graph
Black Luminance @ 0 lx
0.00 cd/m²
Black Luminance @ 1000 lx
0.34 cd/m²
Total Reflected Light
8.7
Bright Room Off Picture
Compare High-Res
Compare High-Res
Total Reflection Ring Light Picture
Total Reflected Light Intensity
8,480% ⋅ pixel
Diffraction Artifacts
No
Gradient
9.4
9.6
Gradient Picture
Compare High-Res
Compare High-Res
Color Depth
10 Bit
10 Bit
Vertical Viewing Angle
9.1
Vertical Viewing Angle Video
Vertical Chroma Graph
Color Washout From Below
54°
Color Washout From Above
53°
Vertical Hue Graph
Color Shift From Below
35°
Color Shift From Above
33°
Vertical Lightness Graph
Brightness Loss From Below
70°
Brightness Loss From Above
70°
Black Level Raise From Below
70°
Black Level Raise From Above
70°
Gamma Shift From Below
69°
Gamma Shift From Above
70°
SDR Color Volume
9.9
sRGB Color Volume ITP Picture
sRGB In ICtCp
100.0%
sRGB Picture Mode
User
Adobe RGB Color Volume ITP Picture
Adobe RGB In ICtCp
94.2%
Adobe RGB Picture Mode
User
Reflections
8.9
Average Room
Average Room Off Picture
Bright Room Off Picture
Compare High-Res
Compare High-Res
Screen Finish
Matte
Glossy
Total Reflections
2.2%
Indirect Reflections
1.0%
Calculated Direct Reflections
1.2%
Motion
Refresh Rate
8.2
7.4
Native Refresh Rate
120 Hz
120 Hz
Max Refresh Rate
138 Hz
144 Hz
Max Refresh Rate Over DP
138 Hz
N/A
Max Refresh Rate Over HDMI
138 Hz
144 Hz
Max Refresh Rate Over DP @ 10-bit
138 Hz
N/A
Max Refresh Rate Over HDMI @ 10-Bit
138 Hz
144 Hz
DSC Toggle
No
DSC Off Max Refresh Rate Over DP
N/A
DSC Off Max Refresh Rate Over HDMI
N/A
Variable Refresh Rate (VRR)
Variable Refresh Rate
Yes
Yes
FreeSync
Compatible (Tested)
Yes
G-SYNC
Compatible (NVIDIA Certified)
Compatible (NVIDIA Certified)
VRR Maximum
138 Hz
144 Hz
VRR Minimum
< 20 Hz
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
HDMI
VRR Motion Performance
9.8
Pursuit Photo VRR
OD Mode CAD Comparison
Recommended VRR OD Setting
No OD Mode
Variable Overdrive Advertised
No
Avg. CAD
19
Best CAD
18
Worst CAD
21
Refresh Rate Compliance
9.6
Fast GTG Sequence
VRR Compliance
Compliance @ Max Hz
94%
Compliance @ 120 FPS
93%
Compliance @ 60 FPS
96%
Response Time @ 60Hz
9.5
Motion Blur Picture
Response Time Table
Compare High-Res
Compare High-Res
Recommended Overdrive Setting
No Overdrive
No OD Mode
Rise / Fall Time
0.8 ms
0.4 ms
Total Response Time
5.5 ms
1.2 ms
Overshoot Error
1.7%
1 RGB
Worst 3 Rise / Fall Time
0.9 ms
1.7 ms
Worst 3 Total Response Time
16.7 ms
8.3 ms
Worst 3 Overshoot Error
11.6%
9 RGB
CAD @ Max Refresh Rate
9.9
Pursuit Photo At Max Refresh
Compare High-Res
Compare High-Res
CAD Heatmap At Max Refresh
Compare High-Res
Compare High-Res
OD Transition Max Refresh Rate
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
18
Best 10% CAD
6
Worst 10% CAD
49
Response Time @ Max Refresh Rate
First Response Time
0.8 ms
0.3 ms
Total Response Time
2.8 ms
1.3 ms
Recommended Overdrive Setting
No Overdrive
No OD Mode
Motion Blur Picture
Compare High-Res
Compare High-Res
RGB Overshoot
1.5%
3 RGB
Worst 10% RGB Overshoot
10.0%
25 RGB
Worst 10% First Response Time
0.9 ms
0.5 ms
Worst 10% Total Response Time
7.3 ms
6.9 ms
Heatmap First Response
Heatmap Total Response
Heatmap RGB Overshoot
Response Time Table
Compare High-Res
Compare High-Res
CAD @ 120Hz
9.9
Pursuit Photo 120Hz
Compare High-Res
Compare High-Res
CAD Heatmap 120Hz
Compare High-Res
Compare High-Res
OD Transition 120Hz
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
16
Best 10% CAD
6
Worst 10% CAD
39
Response Time @ 120Hz
Worst 10% First Response Time
0.9 ms
0.6 ms
RGB Overshoot
1.4%
1 RGB
Total Response Time
2.8 ms
1.4 ms
First Response Time
0.8 ms
0.3 ms
Recommended Overdrive Setting
No Overdrive
No OD Mode
Worst 10% Total Response Time
8.4 ms
8.3 ms
Worst 10% RGB Overshoot
10.3%
10 RGB
120Hz First Response Heatmap
120Hz Total Response Heatmap
120Hz Heatmap RGB Overshoot
Motion Blur Picture
Compare High-Res
Compare High-Res
Response Time Table
Compare High-Res
Compare High-Res
CAD @ 60Hz
9.9
Pursuit Photo 60Hz
Compare High-Res
Compare High-Res
CAD Heatmap 60Hz
OD Transition 60Hz
OD noodmode
0 to 31
Recommended Overdrive Setting
No OD Mode
Avg. CAD
16
Best 10% CAD
6
Worst 10% CAD
33
Response Time @ 60Hz
Recommended Overdrive Setting
No Overdrive
No OD Mode
First Response Time
0.8 ms
0.4 ms
Total Response Time
5.5 ms
1.2 ms
RGB Overshoot
1.7%
1 RGB
Worst 10% Total Response Time
16.7 ms
8.3 ms
Worst 10% First Response Time
0.9 ms
1.7 ms
Worst 10% RGB Overshoot
11.6%
9 RGB
60Hz First Response Heatmap
60Hz Total Response Heatmap
60Hz RGB Overshoot Heatmap
Backlight Strobing (BFI)
Backlight Strobing Picture
Compare High-Res
Compare High-Res
Backlight Strobing Frequency Picture
Compare High-Res
Compare High-Res
Backlight Strobing (BFI)
No BFI
Yes
Maximum Frequency
N/A
60 Hz
Minimum Frequency
N/A
60 Hz
Longest Pulse Width Brightness
N/A
117 cd/m²
Shortest Pulse Width Brightness
N/A
117 cd/m²
Pulse Width Control
No BFI
No
Pulse Phase Control
No BFI
No
Pulse Amplitude Control
No BFI
Yes
VRR At The Same Time
No BFI
No
VRR Flicker
6.2
VRR Flicker Video
VRR Flicker Graph
Dark Gray Flicker
3.3 RGB
Middle Gray Flicker
1.4 RGB
Light Gray Flicker
1.2 RGB
Image Flicker
10
10
Backlight Picture
Compare High-Res
Compare High-Res
Flicker-Free
No
No
PWM Dimming Frequency
0 Hz
0 Hz
Inputs
Input Lag
8.6
8.5
Native Resolution @ Max Hz
4.2 ms
4.4 ms
Native Resolution @ 120Hz
4.9 ms
5.1 ms
Native Resolution @ 60Hz
28.6 ms
9.6 ms
Backlight Strobing (BFI)
N/A
29.9 ms
Resolution
8.8
7.8
Native Resolution
3840 x 2160
3840 x 2160
Aspect Ratio
16:9
16:9
Megapixels
8.3 MP
8.3 MP
Pixel Density
106 PPI
105 PPI
Measured Screen Diagonal
41.5"
Screen Area
737 in²
PS5 Compatibility
10
10
PS5 Compatibility Photo
Compare High-Res
Compare High-Res
PS5 Compatibility Table
4k @ 120Hz
Yes
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
VRR
Yes
Xbox Series X|S Compatibility
10
9.7
XSX Compatibility Photo
Compare High-Res
Compare High-Res
XSX Compatibility Table
4k @ 120Hz
Yes
Yes
4k @ 60Hz
Yes
Yes
1440p @ 120Hz
Yes
Yes
1440p @ 60Hz
Yes
Yes
1080p @ 120Hz
Yes
Yes
1080p @ 60Hz
Yes
Yes
HDR
Yes
VRR
Yes
Inputs Photos
Inputs 1
Compare High-Res
Compare High-Res
Inputs 2
Compare High-Res
Compare High-Res
Inputs
Inputs 1
Compare High-Res
Compare High-Res
Inputs 2
Compare High-Res
Compare High-Res
DisplayPort
1 (DP 1.4)
No
DisplayPort Transmission Bandwidth
No DisplayPort 2.1
Mini DisplayPort
No
No
DVI
No
HDMI
2 (HDMI 2.1), 2 HDMI (2.0)
4 (HDMI 2.1)
VGA
No
HDMI 2.1 Bandwidth
48Gbps (FRL 12x4)
48Gbps (FRL 12x4)
Daisy Chaining
No
No
3.5mm Audio Out
1
Yes
3.5mm Audio In
No
3.5mm Microphone In
No
Ethernet
Yes
HDR10
Yes
Yes
Dolby Vision
Yes
USB
USB-A Ports
4
3
USB-A Rated Speed
10Gbps (USB 3.2 Gen 2)
480Mbps (USB 2.0)
USB-B Upstream Port
Yes
No
USB-C Ports
0
0
USB-C Upstream
No USB-C Ports
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
No USB-C Ports
Thunderbolt
No
No
macOS Compatibility
macOS Screenshot
Compare High-Res
Compare High-Res
Features
Additional Features
Speakers
Yes
Yes
RGB Illumination
No
No
Multiple Input Display
PIP + PBP
PBP
KVM Switch
No
No
Smart OS
Yes
On-Screen Display (OSD)
OSD Picture
Compare High-Res
Compare High-Res
Check Price
42"
ROG Swift OLED PG42UQ
SEE PRICE
Amazon.com
42"
OLED42C4PUA
SEE PRICE
Amazon.com
42"
ROG Swift OLED PG42UQ
SEE PRICE
BestBuy.com
42"
OLED42C4PUA
SEE PRICE
LG.com
42"
ROG Swift OLED PG42UQ
SEE PRICE
Walmart.com
42"
OLED42C4PUA
SEE PRICE
Walmart.com
42"
ROG Swift OLED PG42UQ
SEARCH
B&H
42"
OLED42C4PUA
SEARCH
B&H
42"
ROG Swift OLED PG42UQ
SEARCH
ASUS
42"
OLED42C4PUA
SEARCH
BestBuy.com
ASUS ROG Swift OLED PG42UQ
LG C4 42 OLED
Comments
ASUS ROG Swift OLED PG42UQ vs LG C4 42 OLED: Main Discussion
What do you think of these products? Let us know below.
Looking for a personalized buying advice from the RTINGS.com experts? Insiders have direct access to buying advice on our insider forum.