Samsung Odyssey G9 Monitor Review

Tested using Methodology v1.1
Reviewed Oct 23, 2020 at 10:23 am
Samsung Odyssey G9 Picture
7.7
Mixed Usage
7.4
Office
8.2
Gaming
7.6
Multimedia
7.7
Media Creation
7.2
HDR Gaming
Size 49"
Resolution 5120x1440
Max Refresh Rate
240 Hz
Pixel Type
VA
Variable Refresh Rate
FreeSync

The Samsung Odyssey G9 is a great super ultrawide gaming monitor. It has a curved 49 inch screen with a 32:9 aspect ratio, spanning nearly your entire field of view to deliver an immersive gaming experience. It has a fast response time and a high refresh rate, and it supports variable refresh rate technology to reduce screen tearing. It can display a wide color gamut and gets extremely bright, allowing it to produce vibrant colors and make highlights pop in HDR content. Sadly, even though it has a VA panel with a decent contrast ratio, blacks still look grayish in the dark, and its black uniformity is bad. There are also some limitations when it comes to its 240Hz refresh rate, as it's only achievable with graphics cards that have the Display Stream Compression (DSC) feature. Lastly, it has a terrible local dimming feature, which is rather disappointing.

Our Verdict

7.7 Mixed Usage

The Samsung Odyssey G9 is an overall good monitor. It has great gaming performance thanks to its low input lag, fast response time, and high refresh rate. Its large screen provides plenty of space to work comfortably, and it has a high pixel density to render text clearly. Unfortunately, it has sub-par ergonomics and narrow viewing angles, which isn't ideal for sharing content or playing co-op games. On the bright side, it can display a wide color gamut and gets bright enough to deliver a great HDR experience.

Pros
  • Large screen size.
  • Good reflection handling.
  • Decent contrast ratio.
Cons
  • Disappointing ergonomics.
  • Sub-par viewing angles.
7.4 Office

The Samsung Odyssey G9 is decent for office use. Its 49 inch screen allows you to have multiple windows opened side-by-side, and its high pixel density results in sharp images and text. Unfortunately, it has poor ergonomics and sub-par viewing angles, making it hard to adjust the screen to your optimal viewing position or share work with your coworkers.

Pros
  • Large screen size.
  • Good reflection handling.
Cons
  • Disappointing ergonomics.
  • Sub-par viewing angles.
8.2 Gaming

The Samsung Odyssey G9 is great for gaming. It has low input lag, a fast response time, and a high refresh rate, resulting in a responsive and smooth gaming experience. It supports FreeSync to reduce screen tearing and is compatible with NVIDIA's G-SYNC. However, there are limitations regarding its 240Hz refresh rate, as it's only achievable with certain graphics cards. Also, its contrast ratio is only decent, and it has bad black uniformity, so it isn't the best option for gaming in the dark.

Pros
  • Large screen size.
  • Good response time.
  • High refresh rate.
  • Decent contrast ratio.
Cons
  • Poor black uniformity.
  • Disappointing ergonomics.
7.6 Multimedia

The Samsung Odyssey G9 is good for media consumption. It has a large screen and high resolution to deliver an immersive viewing experience. However, even though it has a VA panel, its contrast ratio is only decent, and it has bad black uniformity, making it less ideal for dark rooms. Additionally, it has sub-par viewing angles and ergonomics, so it isn't the best choice for sharing content.

Pros
  • Large screen size.
  • Good reflection handling.
  • Decent contrast ratio.
  • Outstanding gray uniformity.
Cons
  • Poor black uniformity.
  • Disappointing ergonomics.
  • Sub-par viewing angles.
7.7 Media Creation

The Samsung Odyssey G9 is good for content creators. It has a large screen and high resolution, allowing you to work with multiple windows opened side-by-side to improve your workflow. It handles reflections well and gets bright enough to overcome glare. It isn't the best option for sharing your work, though, as it has narrow viewing angles and sub-par ergonomics. On the upside, it has near full coverage of the sRGB color space and decent color accuracy out-of-the-box.

Pros
  • Large screen size.
  • Good reflection handling.
  • Decent contrast ratio.
  • Outstanding gray uniformity.
Cons
  • Poor black uniformity.
  • Disappointing ergonomics.
  • Sub-par viewing angles.
7.2 HDR Gaming

The Samsung Odyssey G9 is decent for HDR gaming. It has low input lag, a fast response time, and a high refresh rate to deliver an incredibly smooth gaming experience. It can display a wide color gamut and gets bright enough to make highlights pop in HDR. Sadly, it has a terrible local dimming feature, bad black uniformity, and its VA panel's contrast ratio is only decent, so blacks still look grayish in the dark.

Pros
  • Large screen size.
  • Gets very bright in HDR.
  • High refresh rate.
  • Decent contrast ratio.
Cons
  • Poor black uniformity.
  • Disappointing ergonomics.
  • Terrible local dimming.
  • 7.7 Mixed Usage
  • 7.4 Office
  • 8.2 Gaming
  • 7.6 Multimedia
  • 7.7 Media Creation
  • 7.2 HDR Gaming

Test Results

perceptual testing image
Design
Design
Style
Curved Yes
Curve Radius 1000R
Weight (without stand)
32.2 lbs (14.6 kg)
Weight (with stand)
37.9 lbs (17.2 kg)

The Samsung Odyssey G9 is a super ultrawide monitor with a very aggressive curve. It has relatively thin borders, a wide V-shaped stand, and some RGB lighting on the back.

Design
Stand
Width
31.5" (80.0 cm)
Depth
12.8" (32.4 cm)

The stand's feet are very wide but thin, so there's still a good amount of usable desk space in front. It doesn't support the monitor all that well as there's a lot of wobble, but that's mostly due to its super ultrawide format.

5.3
Design
Ergonomics
Height Adjustment
4.5" (11.5 cm)
Switch Portrait/Landscape No
Swivel Range -15° to 15°
Tilt Range -15° to 5°

The ergonomics are sub-par, although it's somewhat expected of an ultrawide monitor with such an aggressive curve.

Design
Back
Wall Mount VESA 100x100

The back of the monitor has a futuristic design that isn't too gamer-oriented. There's some RGB lighting where the stand connects to the screen, and there's a small plastic hook near the top of the stand to hold your headphones. The stand's white plastic cover is removable, allowing you to hide the cables and route them to the bottom for cable management. You can VESA-mount it, and it comes with a VESA adaptor and screws included in the box.

Design
Borders
Borders
0.4" (1.1 cm)

The borders are relatively thin and aren't distracting.

Design
Thickness
Thickness (with stand)
16.3" (41.5 cm)
Thickness (without stand)
11.4" (28.9 cm)

The screen is very thick, and the stand also takes up a fair amount of space, so you need a large desk to put it on.

8.0
Design
Build Quality

The Samsung Odyssey G9's build quality is great, similar to the Samsung Odyssey G7. The screen is made out of decent-quality plastic, and the stand is metal but covered with a plastic shell. This plastic shell is fairly thin and feels like it can break easily when removed; however, it shouldn't be a problem when installed. Also, the headphone hook is pretty flimsy. There aren't any issues with the overall construction, but it wobbles a lot, which is somewhat expected of a center-mounted super ultrawide monitor.

Picture Quality
7.4
Picture Quality
Contrast
Native Contrast
2231 : 1
Contrast With Local Dimming
2320 : 1

The Samsung Odyssey G9 has a VA panel, but its contrast ratio is only decent, making blacks look grayish in the dark. It's just a little lower than the advertised 2500:1; however, it can vary between individual units. Furthermore, it gets much worse with local dimming enabled, as it causes black level to rise significantly. With local dimming, the contrast ratio drops to 446:1.

1.5
Picture Quality
Local Dimming
Local Dimming
Yes
Backlight
Edge

Unfortunately, the Samsung Odyssey G9's local dimming is terrible, and it only works in HDR, not in SDR mode. There are only vertical lighting zones, so the entire column lights up if there's a small object anywhere on the screen. When lit, the black level rises significantly and is very distracting, as there's a big difference between the zones that are lit and those that aren't. Zone transition seems to be faster in the middle than at the edges of the screen, so while the center zones react quickly to objects going in and out, the zones at the edges of the screen are almost always on. Overall, it looks better without local dimming in regular HDR content.

8.2
Picture Quality
SDR Peak Brightness
SDR Real Scene
402 cd/m²
SDR Peak 2% Window
395 cd/m²
SDR Peak 10% Window
399 cd/m²
SDR Peak 25% Window
399 cd/m²
SDR Peak 50% Window
399 cd/m²
SDR Peak 100% Window
399 cd/m²
SDR Sustained 2% Window
395 cd/m²
SDR Sustained 10% Window
398 cd/m²
SDR Sustained 25% Window
399 cd/m²
SDR Sustained 50% Window
398 cd/m²
SDR Sustained 100% Window
398 cd/m²
SDR ABL
0.001

The Samsung Odyssey G9 has great SDR peak brightness. It's very consistent across different content and is bright enough to overcome glare in bright lighting conditions.

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

The screen can get much brighter, reaching a peak of 639 cd/m² in the 10% window, but only in the 'High Brightness' Picture Mode with Local Dimming and Dynamic Brightness enabled.

8.1
Picture Quality
HDR Peak Brightness
HDR Real Scene
601 cd/m²
HDR Peak 2% Window
992 cd/m²
HDR Peak 10% Window
1060 cd/m²
HDR Peak 25% Window
983 cd/m²
HDR Peak 50% Window
756 cd/m²
HDR Peak 100% Window
954 cd/m²
HDR Sustained 2% Window
977 cd/m²
HDR Sustained 10% Window
1044 cd/m²
HDR Sustained 25% Window
971 cd/m²
HDR Sustained 50% Window
754 cd/m²
HDR Sustained 100% Window
668 cd/m²
HDR ABL
0.024

The Samsung Odyssey G9's HDR peak brightness is great. It varies a lot depending on the scene, but overall, it's bright enough to deliver a fantastic HDR experience. It's advertised as having VESA HDR1000 certification, which requires 1000cd/m² brightness in the peak 100% window, so it's only slightly below.

We measured the HDR peak brightness with the Backlight set to max and Local Dimming set to 'Auto'. Dynamic Brightness is enabled automatically when you turn on local dimming.

5.5
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
38 °
Color Washout From Right
39 °
Color Shift From Left
30 °
Color Shift From Right
32 °
Brightness Loss From Left
35 °
Brightness Loss From Right
36 °
Black Level Raise From Left
12 °
Black Level Raise From Right
13 °
Gamma Shift From Left
12 °
Gamma Shift From Right
13 °

Like most monitors with a VA panel, the Samsung Odyssey G9 has sub-par horizontal viewing angles. Images look washed out from the sides, which isn't ideal for sharing content or playing co-op games. Due to its wide format, the edges of the screen can look inaccurate if you sit too close; however, the screen's curvature helps mitigate this issue.

5.4
Picture Quality
Vertical Viewing Angle
Color Washout From Below
28 °
Color Washout From Above
28 °
Color Shift From Below
43 °
Color Shift From Above
40 °
Brightness Loss From Below
32 °
Brightness Loss From Above
31 °
Black Level Raise From Below
12 °
Black Level Raise From Above
11 °
Gamma Shift From Below
14 °
Gamma Shift From Above
12 °

The vertical viewing angles are sub-par. This causes the image to look inaccurate if you have the monitor mounted above eye level.

9.0
Picture Quality
Gray Uniformity
50% Std. Dev.
1.483 %
50% DSE
0.102 %
5% Std. Dev.
0.955 %
5% DSE
0.047 %

Our unit of the Samsung Odyssey G9 has outstanding gray uniformity. The edges appear slightly brighter than the center, and there's a bit of dirty screen effect. However, it shouldn't be noticeable in regular content. Uniformity is much better in near-dark scenes. Note that gray uniformity can vary between individual units.

3.5
Picture Quality
Black Uniformity
Native Std. Dev.
3.277 %
Std. Dev. w/ L.D.
11.967 %

Black uniformity on our unit of the Samsung Odyssey G9 is bad. Without local dimming, there's visible backlight bleed along the top and bottom edges of the screen. Additionally, due to the screen's curvature, the photo is cropped and doesn't show the corners where the backlight bleed is far worse. With local dimming enabled, the test cross causes the entire vertical lighting zone to light up, which is quite distracting. Note that black uniformity can vary between individual units.

7.0
Picture Quality
Pre Calibration
Picture Mode
FPS
Luminance
391 cd/m²
Luminance Settings
100
Contrast Setting
85
RGB Controls
43-46-50
Gamma Setting
Mode 1
Color Temperature
6721 K
White Balance dE
3.75
Color dE
3.10
Gamma
2.24

Out-of-the-box, the color accuracy is decent. Most colors and white balance are inaccurate, and the color temperature is on the cooler side, resulting in a blueish tint. Gamma follows the sRGB curve reasonably well, but most scenes are darker than they should be. Note that color accuracy can vary between individual units.

9.6
Picture Quality
Post Calibration
Picture Mode
Custom
Luminance
98 cd/m²
Luminance Settings
7
Contrast Setting
75
RGB Controls
45-53-50
Gamma Setting
Mode 1
Color Temperature
6506 K
White Balance dE
0.56
Color dE
0.46
Gamma
2.19

After calibration, the Samsung Odyssey G9 has exceptional color accuracy. The remaining inaccuracies shouldn't be visible to the naked eye, and the color temperature is almost right on our 6500K target. Gamma is significantly improved, but both dark and bright scenes are now slightly over-brightened. We encountered a bug during testing, causing our calibration settings to reset and return to the default values. We'll retest it once a firmware update is available.

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.

9.0
Picture Quality
SDR Color Gamut
sRGB xy
98.5 %
Adobe RGB xy
81.9 %
sRGB Picture Mode
Custom
Adobe RGB Picture Mode
Custom

The Samsung Odyssey G9 has an outstanding SDR color gamut. It covers nearly the entire sRGB color space used in most content, and it has great coverage of the Adobe RGB color space used in photo editing.

9.3
Picture Quality
SDR Color Volume
sRGB In ICtCp
98.5 %
Adobe RGB In ICtCp
87.9 %
sRGB Picture Mode
Custom
Adobe RGB Picture Mode
Custom

Exceptional SDR color volume. It has trouble displaying dark colors as its contrast ratio is only decent.

7.2
Picture Quality
HDR Color Gamut
Wide Color Gamut
Yes
DCI P3 xy
80.5 %
Rec. 2020 xy
63.0 %
DCI P3 Picture Mode
HDR Mode
Rec. 2020 Picture Mode
HDR Mode

The Samsung Odyssey G9 has a decent HDR color gamut. It has great coverage of the commonly-used DCI P3 color space, but its Rec. 2020 coverage is much more limited. Note that the DCI P3 coverage is lower than the advertised 95%. This is due to the way we measure DCI P3. 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.

7.0
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
79.5 %
Rec. 2020 In ICtCp
61.0 %
DCI P3 Picture Mode
HDR Mode
Rec. 2020 Picture Mode
HDR Mode

Decent HDR color volume. It doesn't display dark colors well due to its lower contrast ratio, and it has difficulty with bright blues, which is typical for LCDs.

8.9
Picture Quality
Image Retention
IR After 0 Min Recovery
0.41 %
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 %

There's some image retention after displaying a high contrast image for ten minutes; however, it dissipates quickly. Note that image retention can vary between individual units.

9.8
Picture Quality
Gradient
Color Depth
10 Bit

The Samsung Odyssey G9's gradient handling is superb. There's only a little bit of banding in the greens and grays, but it shouldn't be noticeable in regular content.

10
Picture Quality
Color Bleed
Pixel Row Error
0.001 %
Pixel Column Error
0.003 %

There are no signs of color bleed on the Samsung Odyssey G9.

7.6
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
5.3 %
Indirect Reflections
3.5 %
Calculated Direct Reflections
1.8 %

The Samsung Odyssey G9 has good reflection handling. Combined with the screen's high brightness, you shouldn't have any visibility issues in bright lighting conditions.

7.5
Picture Quality
Text Clarity
Sub-Pixel Layout
RGB

Text clarity is good. Window ClearType helps make the letters look more fleshed-out (top photo), especially diagonal lines. The photo of the pixels looks blurry due to the screen's anti-reflective coating.

Motion
7.9
Motion
Response Time @ Max Refresh Rate
Best Overdrive Setting
Standard
Rise / Fall Time
1.7 ms
Total Response Time
8.2 ms
Overshoot Error
18.3 %
Dark Rise / Fall Time
2.1 ms
Dark Total Response Time
9.8 ms
Dark Overshoot Error
32.5 %

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 G9 has a good response time when running at its max refresh rate, resulting in only a short blur trail behind fast-moving objects. The best overdrive setting is 'Standard', as it's the option with the least amount of overshoot.

9.1
Motion
Response Time @ 60Hz
Best Overdrive Setting
Standard
Rise / Fall Time
2.5 ms
Total Response Time
8.3 ms
Overshoot Error
6.9 %
Dark Rise / Fall Time
3.1 ms
Dark Total Response Time
11.6 ms
Dark Overshoot Error
16.3 %

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

The Samsung Odyssey G9's response time at 60Hz is outstanding. Again, the best overdrive setting is 'Standard' because the 'Faster' and 'Fastest' options have too much overshoot.

10
Motion
Image Flicker
Flicker-Free Yes
PWM Dimming Frequency
>1000 Hz

The Samsung Odyssey G9 uses Pulse-Width Modulation (PWM) to dim the backlight; however, the flickering frequency is extremely high and shouldn't be visible. There are reports of visible image flickering when HDR is enabled at 240Hz, but the issue isn't present on our unit.

0
Motion
Black Frame Insertion (BFI)
Black Frame Insertion (BFI)
No
BFI Maximum Frequency
N/A
BFI Minimum Frequency
N/A

The Samsung Odyssey G9 doesn't have an optional Black Frame Insertion feature.

9.6
Motion
Refresh Rate
Native
240 Hz
Max Refresh Rate
240 Hz
Variable Refresh Rate
Yes
FreeSync
Yes
G-SYNC
Compatible (NVIDIA Certified)
VRR Maximum
240 Hz
VRR Minimum
< 20 Hz
VRR Supported Connectors DisplayPort

The Samsung Odyssey G9 has a very high refresh rate to deliver a smooth and responsive gaming experience. It supports FreeSync and is compatible with G-SYNC as well. However, there are some limitations. The maximum refresh rate is limited to 60Hz over HDMI, and VRR isn't available. Over DisplayPort, it's only possible to get 240Hz with graphics cards that have the Display Stream Compression (DSC) feature, such as NVIDIA RTX 20- Series cards and AMD 5300 or newer. It should work with NVIDIA 30- series cards, but there are issues with the drivers, so we'll retest it once a firmware update is available. With our Radeon graphics card, we can only achieve a maximum of 120Hz. There are reports of image flickering when VRR is enabled, like on the Samsung Odyssey G7, but it isn't present on our unit.

Inputs
9.6
Inputs
Input Lag
Native Resolution
2.1 ms
Native Resolution @ 60Hz
22.5 ms
Variable Refresh Rate
2.2 ms
Variable Refresh Rate @ 60Hz
N/A
10 Bit HDR
N/A
Black Frame Insertion (BFI)