Samsung Odyssey G5 LC27G55T Monitor Review

Tested using Methodology v1.1
Reviewed Nov 12, 2020 at 08:05 am
Samsung Odyssey G5 LC27G55T Picture
6.8
Mixed Usage
6.4
Office
7.6
Gaming
6.8
Multimedia
6.7
Media Creation
6.3
HDR Gaming
Size 27"
Resolution 2560x1440
Max Refresh Rate
144 Hz
Pixel Type
VA
Variable Refresh Rate
FreeSync

The Samsung Odyssey G5 is a good budget gaming monitor. Like its sibling, the Samsung Odyssey G7, it has a 1440p resolution and is available in two sizes, a 27 inch and a 32 inch. It's better suited for a dark to moderately-lit room, as it has a high contrast ratio to produce deep blacks but doesn't get bright enough to overcome intense glare. It has a quick response time, high refresh rate, and low input lag, resulting in a smooth and responsive gaming experience. On top of that, it has FreeSync support and G-SYNC compatibility. Unfortunately, it has sub-par viewing angles and terrible ergonomics, so it isn't the best choice for co-op gaming or sharing content. Also, even though it supports HDR, it has a low peak brightness and can't display a wide color gamut.

Our Verdict

6.8 Mixed Usage

Overall, the Samsung Odyssey G5 is okay. It performs well enough to satisfy most gamers thanks to its quick response time, high refresh rate, and variable refresh rate support. However, it can't display a wide color gamut and doesn't get very bright, resulting in a mediocre HDR experience. Its large screen and high resolution are great for productivity, but it has terrible ergonomics and sub-par viewing angles, making it hard to adjust the monitor to your ideal viewing position or share your work with others.

Pros
  • Good contrast ratio.
  • Good reflection handling.
  • Great resolution and size.
Cons
  • Poor viewing angles.
  • Doesn't get very bright.
  • Bad ergonomics.
6.4 Office

The Samsung Odyssey G5 is mediocre for office use. It has a high resolution and a large screen with plenty of space for multitasking. It has good reflection handling, but it might not be able to overcome intense glare, especially if there's sunlight. Ergonomics are terrible because it only allows for tilt adjustment, and its VA panel's narrow viewing angles aren't ideal for sharing work with coworkers. Also, while the 32 inch variant provides more screen real estate, the pixel density might be too low for some.

Pros
  • Good reflection handling.
  • Great resolution and size.
Cons
  • Poor viewing angles.
  • Doesn't get very bright.
  • Bad ergonomics.
7.6 Gaming

The Samsung Odyssey G5 is a good gaming monitor. It has a large screen and high resolution, great for playing atmospheric games like RPGs. Motion handling is good, as it has a high refresh rate and quick response time to make fast motion look clear and buttery smooth. Its input lag is exceptionally low, and it supports variable refresh rate technology to reduce screen tearing. Sadly, it has terrible ergonomics and sub-par viewing angles, so it isn't the best option for co-op gaming.

Pros
  • Good contrast ratio.
  • High refresh rate.
  • Fast response time.
  • Great resolution and size.
Cons
  • Doesn't get very bright.
  • Bad ergonomics.
6.8 Multimedia

The Samsung Odyssey G5 is okay for media consumption. It isn't the best choice for sharing content on the screen with others due to its narrow viewing angles and terrible ergonomics. However, it delivers good picture quality and has a large screen. It has a good contrast ratio that allows it to produce deep blacks, but there's a lot of backlight bleed. That said, uniformity can vary between units, so your experience might be different.

Pros
  • Good contrast ratio.
  • Fast response time.
  • Good reflection handling.
  • Great resolution and size.
Cons
  • Poor viewing angles.
  • Doesn't get very bright.
  • Bad ergonomics.
6.7 Media Creation

The Samsung Odyssey G5 is okay for media creation. It has a large screen and high resolution, allowing you to work comfortably with multiple windows opened side-by-side. It has a great SDR color gamut with excellent coverage of the sRGB color space, and its gradient handling is superb. Unfortunately, it has terrible ergonomics and narrow viewing angles, which isn't ideal for sharing your screen with others.

Pros
  • Good contrast ratio.
  • Good reflection handling.
  • Great resolution and size.
Cons
  • Poor viewing angles.
  • Doesn't get very bright.
  • Bad ergonomics.
6.3 HDR Gaming

The Samsung Odyssey G5 is mediocre for gaming in HDR. It can deliver a pretty good gaming experience due to its fast response time, low input lag, and 144Hz refresh. However, HDR content doesn't look much different from SDR because it can't display a wide color gamut and doesn't get bright enough to make highlights pop.

Pros
  • Good contrast ratio.
  • High refresh rate.
  • Fast response time.
  • Great resolution and size.
Cons
  • Doesn't get very bright.
  • Can't display a wide color gamut.
  • No local dimming.
  • Bad ergonomics.
  • 6.8 Mixed Usage
  • 6.4 Office
  • 7.6 Gaming
  • 6.8 Multimedia
  • 6.7 Media Creation
  • 6.3 HDR Gaming

Test Results

perceptual testing image
Design
Design
Style
Curved Yes
Curve Radius 1000R
Weight (without stand)
9.7 lbs (4.4 kg)
Weight (with stand)
9.9 lbs (4.5 kg)

From the front, the Samsung Odyssey G5 looks similar to its bigger sibling, the Samsung Odyssey G7, with thin borders on three sides and a wide V-shaped stand. However, the back is very different, as it looks noticeably cheaper due to its small basic stand. It also lacks the RGB lighting that's present on the G7.

Design
Stand
Width
21.7" (55.0 cm)
Depth
10.8" (27.5 cm)

The stand's feet are wide-set, but they're relatively thin, which leaves you a good amount of usable desk space. It's made out of cheap plastic and wobbles quite a bit.

1.2
Design
Ergonomics
Height Adjustment
0.0" (0.0 cm)
Switch Portrait/Landscape No
Swivel Range No swivel
Tilt Range -17.5° to 2.5°

The ergonomics are terrible. It only allows for a narrow tilt adjustment.

Design
Back
Wall Mount VESA 75x75

The back of the monitor is made out of textured plastic. All the inputs are bottom-facing, and there's a passthrough at the top of the stand for cable management. You don't need any tools to set up the stand; it just clicks into place.

Design
Borders
Borders
0.5" (1.2 cm)

The Samsung Odyssey G5 has thin borders on three sides and a thicker bottom bezel. They aren't distracting.

Design
Thickness
Thickness (with stand)
9.4" (24.0 cm)
Thickness (without stand)
4.7" (12.0 cm)

The monitor is very thick due to the screen's curvature, and the stand sticks out a bit at the back.

7.0
Design
Build Quality

The Samsung G5 Odyssey's build quality is decent. It's entirely plastic, but it feels relatively sturdy overall. However, the VESA mounting holes don't line up with the display's center of gravity, causing the display to tilt downwards when VESA-mounted. The tilting hinge doesn't feel like it's strong enough to hold the display up, as it also causes the screen to tilt downwards to the minimum tilt angle. The stand feels cheap, and although it's easy to install, it's hard to remove.

Picture Quality
7.9
Picture Quality
Contrast
Native Contrast
2997 : 1
Contrast With Local Dimming
N/A

The Samsung Odyssey G5 has a good contrast ratio. It's slightly higher than the advertised 2500:1; however, contrast can vary between individual units.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

The Samsung Odyssey G5 doesn't have a local dimming feature. The video above is provided for reference only.

7.2
Picture Quality
SDR Peak Brightness
SDR Real Scene
285 cd/m²
SDR Peak 2% Window
150 cd/m²
SDR Peak 10% Window
281 cd/m²
SDR Peak 25% Window
281 cd/m²
SDR Peak 50% Window
281 cd/m²
SDR Peak 100% Window
281 cd/m²
SDR Sustained 2% Window
150 cd/m²
SDR Sustained 10% Window
281 cd/m²
SDR Sustained 25% Window
281 cd/m²
SDR Sustained 50% Window
281 cd/m²
SDR Sustained 100% Window
281 cd/m²
SDR ABL
0.044

The Samsung G5 Odyssey has decent SDR peak brightness. Except for the dimmer 2% window caused by frame dimming, brightness is very consistent across different content. However, it isn't bright enough to overcome intense glare, so it's better suited for a dark to moderately-lit room.

We measured the SDR peak brightness after calibration in the 'Custom' Picture Mode, with Brightness set to max.

5.9
Picture Quality
HDR Peak Brightness
HDR Real Scene
298 cd/m²
HDR Peak 2% Window
159 cd/m²
HDR Peak 10% Window
297 cd/m²
HDR Peak 25% Window
297 cd/m²
HDR Peak 50% Window
297 cd/m²
HDR Peak 100% Window
297 cd/m²
HDR Sustained 2% Window
158 cd/m²
HDR Sustained 10% Window
296 cd/m²
HDR Sustained 25% Window
297 cd/m²
HDR Sustained 50% Window
297 cd/m²
HDR Sustained 100% Window
297 cd/m²
HDR ABL
0.043

Disappointing HDR peak brightness. It isn't bright enough to make highlights stand out in HDR content, and just like in SDR, the 2% window is dimmer. Samsung's website has an icon indicating VESA HDR600 certification, although it could just be a mistake, as the brightness doesn't get anywhere near 600 cd/m².

We measured the HDR peak brightness after calibration in the 'Custom' Picture Mode, with Brightness set to max.

5.4
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
29 °
Color Washout From Right
29 °
Color Shift From Left
39 °
Color Shift From Right
42 °
Brightness Loss From Left
30 °
Brightness Loss From Right
30 °
Black Level Raise From Left
12 °
Black Level Raise From Right
14 °
Gamma Shift From Left
12 °
Gamma Shift From Right
15 °

Like most VA panels, the Samsung Odyssey G5 has sub-par horizontal viewing angles. The image looks inaccurate when viewed from the side, which isn't ideal for co-op gaming or sharing content.

4.9
Picture Quality
Vertical Viewing Angle
Color Washout From Below
25 °
Color Washout From Above
26 °
Color Shift From Below
25 °
Color Shift From Above
29 °
Brightness Loss From Below
28 °
Brightness Loss From Above
29 °
Black Level Raise From Below
6 °
Black Level Raise From Above
9 °
Gamma Shift From Below
12 °
Gamma Shift From Above
15 °

Poor vertical viewing angles. This makes the image look washed out if you have the monitor mounted above or below eye level.

9.0
Picture Quality
Gray Uniformity
50% Std. Dev.
1.853 %
50% DSE
0.089 %
5% Std. Dev.
0.631 %
5% DSE
0.064 %

Gray uniformity is outstanding; however, this can vary between individual units. It's a little darker on the right edge of the screen, but thankfully, it isn't that noticeable, and there's almost no dirty screen effect. Uniformity is better in near-dark scenes.

3.5
Picture Quality
Black Uniformity
Native Std. Dev.
3.691 %
Std. Dev. w/ L.D.
N/A

Black uniformity is bad on our Samsung Odyssey G5; however, this varies between individual units. There's a lot of backlight bleed along the top and bottom edges of the screen, making the entire screen look gray.

7.0
Picture Quality
Pre Calibration
Picture Mode
Custom
Luminance
188 cd/m²
Luminance Settings
55
Contrast Setting
75
RGB Controls
50-50-50
Gamma Setting
Mode 1
Color Temperature
6642 K
White Balance dE
3.89
Color dE
2.96
Gamma
2.29

Out of the box, the Samsung Odyssey G5 has decent accuracy; however, this can vary between individual units. There are visible inaccuracies with a few colors and shades of gray. Gamma doesn't follow the sRGB curve at all, causing most scenes to appear darker than intended. The color temperature is just a bit cooler than our 6500K target, which results in a slight blueish tint.

9.4
Picture Quality
Post Calibration
Picture Mode
Custom
Luminance
102 cd/m²
Luminance Settings
20
Contrast Setting
74
RGB Controls
48-53-48
Gamma Setting
Mode 3
Color Temperature
6508 K
White Balance dE
0.55
Color dE
1.10
Gamma
2.19

Accuracy is exceptional after calibration. White balance is nearly perfect, and the color temperature is almost right on target. There are still some color inaccuracies, but they're very hard to spot. Gamma is much improved; however, very dark and very bright scenes are over-brightened.

You can download our ICC profile calibration here. This is provided for reference only and shouldn't be used, as the calibration values vary per individual unit even for the same model due to manufacturing tolerances.

8.1
Picture Quality
SDR Color Gamut
sRGB xy
89.6 %
Adobe RGB xy
73.2 %
sRGB Picture Mode
Custom
Adobe RGB Picture Mode
Custom

The Samsung G5 Odyssey has a great SDR color gamut. It has excellent coverage of the sRGB color space used in most content and decent coverage of the Adobe RGB color space, which is used for photo editing.

7.4
Picture Quality
SDR Color Volume
sRGB In ICtCp
79.7 %
Adobe RGB In ICtCp
67.4 %
sRGB Picture Mode
Custom
Adobe RGB Picture Mode
Custom

Decent SDR color volume. It can display dark colors relatively well, but it has trouble producing bright colors.

5.6
Picture Quality
HDR Color Gamut
Wide Color Gamut
No
DCI P3 xy
60.5 %
Rec. 2020 xy
51.8 %
DCI P3 Picture Mode
Custom
Rec. 2020 Picture Mode
Custom

Although the Samsung Odyssey G5 supports HDR, it can't display a wide color gamut. It has mediocre coverage of the commonly-used DCI P3 color space and poor coverage of the wider Rec. 2020.

Samsung hasn't indicated what percentage of the HDR color gamut the monitor is supposed to cover. Due to the way we measure the DCI P3 coverage, our measurement is likely lower than most other reviewers. We measure it by sending a Rec. 2020 signal, but unlike most reviewers, we limit the colors to the DCI P3 primaries. This results in a lower but arguably more accurate measurement.

4.9
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
55.3 %
Rec. 2020 In ICtCp
42.2 %
DCI P3 Picture Mode
Custom
Rec. 2020 Picture Mode
Custom

The HDR color volume is bad, mainly due to its limited color gamut and low brightness. It has difficulty displaying bright colors as well as very dark and saturated colors.

10
Picture Quality
Image Retention
IR After 0 Min Recovery
0.00 %
IR After 2 Min Recovery
0.00 %
IR After 4 Min Recovery
0.00 %
IR After 6 Min Recovery
0.00 %
IR After 8 Min Recovery
0.00 %
IR After 10 Min Recovery
0.00 %

The Samsung Odyssey G5 doesn't exhibit any signs of image retention, even after displaying a high-contrast image for ten minutes. However, this can vary between units.

9.8
Picture Quality
Gradient
Color Depth
10 Bit

Gradient handling is superb. There's a tiny amount of banding in the darker shades of gray, red, and green, but it shouldn't be noticeable in most content.

10
Picture Quality
Color Bleed
Pixel Row Error
0.001 %
Pixel Column Error
0.001 %

There are no signs of color bleed on this monitor.

7.8
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
5.2 %
Indirect Reflections
3.6 %
Calculated Direct Reflections
1.5 %

The Samsung Odyssey G5's reflection handling is good. Its matte anti-reflective coating does a good job of diffusing bright reflections; however, visibility can still be an issue in well-lit environments due to the monitor's low brightness.

7.0
Picture Quality
Text Clarity
Sub-Pixel Layout
RGB

Text clarity is decent. Windows ClearType (top photo) helps with diagonal lines, such as on the R and N, but it can make vertical lines look slightly thinner.

Motion
7.6
Motion
Response Time @ Max Refresh Rate
Best Overdrive Setting
Faster
Rise / Fall Time
7.3 ms
Total Response Time
14.7 ms
Overshoot Error
0.2 %
Dark Rise / Fall Time
12.6 ms
Dark Total Response Time
23.4 ms
Dark Overshoot Error
0.0 %

Overdrive Setting Response Time Chart Response Time Tables Motion Blur Photo
Standard Chart Table Photo
Faster Chart Table Photo
Fastest Chart Table Photo

The Samsung Odyssey G5 has a good response time when running at its max refresh rate, resulting in only a short blur trail behind fast-moving objects. The recommended overdrive setting is 'Faster', as it provides the best performance with almost no overshoot.

7.2
Motion
Response Time @ 60Hz
Best Overdrive Setting
Faster
Rise / Fall Time
7.2 ms
Total Response Time
18.2 ms
Overshoot Error
2.3 %
Dark Rise / Fall Time
9.8 ms
Dark Total Response Time
27.4 ms
Dark Overshoot Error
3.3 %

Overdrive Setting Response Time Chart Response Time Tables Motion Blur Photo
Standard Chart Table Photo
Faster Chart Table Photo
Fastest Chart Table Photo

The response time at 60Hz is decent. It's a bit slow in the darker transitions, causing slightly more motion blur in dark scenes. The recommended overdrive setting is again 'Faster' because 'Fastest' causes much more overshoot.

2.0
Motion
Image Flicker
Flicker-Free No
PWM Dimming Frequency
144 Hz

The Samsung G5 Odyssey is advertised to have a flicker-free backlight. It's flicker-free when the backlight is set above 0%; however, there's a 144Hz flickering when the backlight is at 0%, which matches the monitor's refresh rate.

9.0
Motion
Black Frame Insertion (BFI)
Black Frame Insertion (BFI)
Yes
BFI Maximum Frequency
144 Hz
BFI Minimum Frequency
60 Hz

The Samsung G5 Odyssey has an optional Black Frame Insertion feature to improve motion clarity, but like most monitors, it can't be used at the same time as VRR. When enabled, the screen becomes noticeably darker due to the lack of brightness compensation, and it remains active as long as you don't adjust the screen's brightness. It sometimes causes the screen to dim so much that we can barely navigate the on-screen menu, and we could only get the brightness to return to normal after unplugging the monitor. Additionally, it causes noticeable dark smearing behind fast-moving objects. To use BFI, set the monitor's overdrive setting to 'Fastest (MBR)'.

9.0
Motion
Refresh Rate
Native
144 Hz
Max Refresh Rate
144 Hz
Variable Refresh Rate
Yes
FreeSync
Yes
G-SYNC
Compatible (Tested)
VRR Maximum
144 Hz
VRR Minimum
< 20 Hz
VRR Supported Connectors DisplayPort, HDMI

The Samsung G5 Odyssey supports FreeSync natively to reduce screen tearing. It's compatible with NVIDIA's G-SYNC as well, but it only works over a DisplayPort connection.

Inputs
9.3
Inputs
Input Lag
Native Resolution
4.2 ms
Native Resolution @ 60Hz
23.5 ms
Variable Refresh Rate
4.6 ms
Variable Refresh Rate @ 60Hz
9.7 ms
10 Bit HDR