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Samsung Odyssey G5/G51C S27CG51 Monitor Review

Tested using Methodology v1.2
Reviewed Aug 10, 2023 at 09:09 am
Latest change: Writing modified Aug 10, 2023 at 09:09 am
Samsung Odyssey G5/G51C S27CG51 Picture
7.5
Mixed Usage
7.6
Office
7.8
Gaming
7.3
Media Consumption
7.7
Media Creation
6.4
HDR
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The Samsung Odyssey G5/G51C S27CG51 is an entry-level gaming monitor. It has a 1440p resolution and 27-inch screen size, and it's also available in a 32-inch model in various regions. Part of Samsung's Odyssey gaming lineup, it's an updated model of the Samsung Odyssey G5/G55A S27AG55, with the main difference being that it has a flat screen. It's designed with gaming in mind as it has a 165Hz refresh rate with FreeSync variable refresh rate (VRR) and G-SYNC compatibility, and it supports HDMI 2.0 and DisplayPort 1.2 bandwidth. Besides that, it's limited in extra features, but it supports HDR and has some gaming perks, like a virtual crosshair and a Black Equalizer feature.

Our Verdict

7.5 Mixed Usage

The Samsung Odyssey G51C is good for most uses. It's designed as a gaming monitor with a 165Hz refresh rate, VRR support, and low input lag for a responsive feel. While it's good for gaming, motion looks blurry as it has a slow response time at any refresh rate. It's also good for general work use or casual content creation thanks to its sharp text clarity and good reflection handling, which is useful if you want to use it in a bright room, but it has narrow viewing angles, so the image looks washed out from the sides. It has a good contrast ratio and excellent black uniformity, so it's decent for watching SDR or HDR content in dark rooms, but it lacks a local dimming feature, and highlights don't pop against the rest of the image, so HDR looks dull and muted.

Pros
  • Excellent ergonomics.
  • Good reflection handling.
  • FreeSync VRR and G-SYNC compatibility.
  • Good native contrast ratio.
Cons
  • Not bright enough to fight intense glare.
  • Narrow viewing angles.
  • Limited in extra features.
  • Blurry motion due to slow response time.
7.6 Office

The Samsung Odyssey G51C is good for office use. It has good text clarity, and the 27-inch screen is big enough to open two windows side-by-side. It also handles reflections well enough to reduce glare from a few lights around your workspace, but it doesn't get bright enough to fight intense glare, like if you place it opposite a bright window. While it has excellent ergonomics and it's easy to adjust, its narrow viewing angles are disappointing if you need to often share your screen with someone else, as they'll see a washed-out image from the sides.

Pros
  • Good text clarity.
  • Excellent ergonomics.
  • Good reflection handling.
Cons
  • Not bright enough to fight intense glare.
  • Limited in extra features.
7.8 Gaming

The Samsung G51C is good for gaming. It has features you'd expect to find in a gaming monitor, like a 165Hz refresh rate and VRR support to reduce screen tearing. However, with DisplayPort 1.2 and HDMI 2.0 bandwidth, you can't reach its max refresh rate when playing HDR games with 10-bit signals. It has low input lag for a responsive feel, but motion is blurry due to its slow response time. On the plus side, it displays deep blacks, which makes it good for dark room gaming, but it lacks a local dimming feature to further improve the picture quality in dark games.

Pros
  • 165Hz refresh rate.
  • FreeSync VRR and G-SYNC compatibility.
  • Low input lag.
  • Good native contrast ratio.
Cons
  • Narrow viewing angles.
  • Blurry motion due to slow response time.
  • Limited to DisplayPort 1.2 and HDMI 2.0 bandwidth.
7.3 Media Consumption

The Samsung Odyssey G51C is alright for media consumption. Its 27-inch screen is big enough to sit back and watch your favorite shows and movies, but you can't watch the latest content in 4k as it has a 1440p resolution. While it has a good native contrast ratio to display deep blacks and excellent black uniformity, it doesn't have a local dimming feature to improve either of those. Also, it has narrow viewing angles, meaning the image looks washed out from the sides, which isn't ideal if you want to share your screen with someone next to you.

Pros
  • Excellent ergonomics.
  • Good native contrast ratio.
  • Excellent black uniformity.
Cons
  • Not bright enough to fight intense glare.
  • Narrow viewing angles.
  • Lacks a local dimming feature.
7.7 Media Creation

The Samsung Odyssey G51C is good for casual content creators but isn't meant for professional editors. Its accuracy before calibration is just okay, as there are issues with the white balance, so it needs a full calibration for the most accurate image. It also displays a wide range of colors in SDR, but some colors are undersaturated, while others are oversaturated. The excellent ergonomics make it easy to adjust the screen to your liking, but with narrow viewing angles, it's difficult to share your screen with a coworker or client as they'll see a washed-out image from the sides.

Pros
  • Good text clarity.
  • Excellent ergonomics.
  • Good reflection handling.
Cons
  • Not bright enough to fight intense glare.
  • Narrow viewing angles.
  • Needs calibration for most accurate colors.
6.4 HDR

The Samsung G51C isn't bad for HDR. It displays deep blacks in dark rooms thanks to its high native contrast ratio and excellent black uniformity, but it lacks a local dimming feature to improve the picture quality in dark scenes. Unfortunately, it doesn't display all the colors needed for HDR, so colors look washed out and aren't realistic, and because it has low peak brightness, highlights don't pop against the rest of the image.

Pros
  • Good native contrast ratio.
  • Excellent black uniformity.
Cons
  • Lacks a local dimming feature.
  • Doesn't display wide range of colors in HDR.
  • Limited HDR peak brightness.
  • 7.5 Mixed Usage
  • 7.6 Office
  • 7.8 Gaming
  • 7.3 Media Consumption
  • 7.7 Media Creation
  • 6.4 HDR
  1. Updated Aug 10, 2023: Review published.
  2. Updated Aug 07, 2023: Early access published.
  3. Updated Jul 31, 2023: Our testers have started testing this product.
  4. Updated Jul 11, 2023: The product has arrived in our lab, and our testers will start evaluating it soon.
  5. Updated Jun 23, 2023: We've purchased the product and are waiting for it to arrive in our lab.

Differences Between Sizes And Variants

We tested the 27-inch Samsung Odyssey G51C, which is also available in a 32-inch size in certain regions and will perform similarly. Released in 2023, it's an updated version of past Odyssey G5 models but isn't a direct replacement either. You can see the differences between the models below, but the results are only valid for this monitor.

Model Size(s) Panel Type Max Refresh Rate Curved Model Year
Odyssey G51C 27", 32" VA 165Hz No 2023
Odyssey G55A 27", 32" VA 165Hz Yes 2021
Odyssey G50A 27", 32" IPS 165Hz No 2021

Our unit was manufactured in March 2023; you can see the label here.

Compared To Other Monitors

The Samsung Odyssey G51C is a good entry-level gaming monitor that offers a few improvements over the previous Samsung Odyssey G5/G55A S27AG55. However, it's still limited in performance compared to the rest of the gaming monitor market. It's fine if you need something simple and cheap as it does the trick, but if you prefer a monitor with better motion handling, you can get better performance with the Samsung Odyssey G5 S27AG50 or the Gigabyte M27Q, even if they cost a bit more.

See our recommendations for the best budget and cheap gaming monitors, the best 1440p gaming monitors, and the best gaming monitors under $300.

Dell S2722DGM

The Dell S2722DGM and the Samsung Odyssey G5/G51C S27CG51 are both good gaming monitors, with a few differences. The Dell has a curved screen compared to the flat screen on the Samsung, and the Dell doesn't support HDR either. The Dell is better to use in a well-lit room as it gets brighter, while the Samsung is better for console gaming as it downscales 4k signals, which the Dell doesn't do.

Samsung Odyssey G5 S27AG50

The Samsung Odyssey G5/G51C S27CG51 and the Samsung Odyssey G5 S27AG50 are both gaming monitors with a 165Hz refresh rate, but there are a few differences. They have different panel types, with the S27CG51 having a higher contrast ratio and the S27AG50 having wider viewing angles. The S27AG50 also has much better motion handling and even gets brighter, making it the better choice if you want to use it in a well-lit room.

Samsung Odyssey G5 C27G55T

The Samsung Odyssey G5/G51C S27CG51 is a newer model than the Samsung Odyssey G5 C27G55T, with a few differences. The S27CG51 has a flat screen compared to the curved screen on the C27G55T and has a slightly higher 165Hz refresh rate. While they both have blurry motion, the S27CG51 does have a faster overall response time. Lastly, the S27CG51 has a different stand with more ergonomic adjustments, making it easier to place in an ideal position than the C27G55T.

Samsung Odyssey G5/G55A S27AG55

The Samsung Odyssey G5/G51C S27CG51 is a newer model than the Samsung Odyssey G5/G55A S27AG55, with a few improvements. The S27CG51 has a flat screen instead of the curved screen on the S27AG55, and its stand offers much better ergonomics, making it easier to place in an ideal viewing position. The S27CG51 also has a faster response time, but that monitor's motion handling is still limited. On the other hand, the S27AG55 supports DisplayPort 1.4 bandwidth, while the S27CG51 is limited to DisplayPort 1.2 bandwidth, meaning you can reach the S27AG55's max refresh rate even when playing 10-bit games in HDR.

Test Results

perceptual testing image
Design
Design
Style
Curved
No
Curve Radius
Not Curved

The Samsung Odyssey G51C has a gamer-oriented aesthetic with etched lines on the back. There's a blue ring where the stand attaches to the back, but it doesn't feature RGB lighting like on other monitors.

7.0
Design
Build Quality

The build quality is decent. While there isn't anything that stands out as being poorly made, the plastic materials don't feel premium, and the bottom bezel isn't perfectly flush with the entire screen either. The screen wobbles on the stand, and it can be hard to remove the stand from the screen, but that's only an issue if you need to mount it anyways.

8.8
Design
Ergonomics
Height Adjustment
4.7" (12.0 cm)
Tilt Range
-22.5° to 5°
Rotate Portrait/Landscape
Yes, Clockwise
Swivel Range
-30° to 30°
Wall Mount
VESA 100x100

This monitor has excellent ergonomics, as you can adjust it in many ways. As you can only rotate it into portrait mode in one direction, the bottom-facing inputs will always be facing to the left when rotated, as you can see here. At the minimum height in the standard orientation, the screen is about 0.79" (2 cm) from the bottom of the table. The back of the stand also features a clip for cable management.

Design
Stand
Base Width
18.0" (45.8 cm)
Base Depth
8.6" (21.9 cm)
Thickness (With Display)
6.5" (16.4 cm)
Weight (With Display)
10.4 lbs (4.7 kg)
Design
Display
Size
27"
Housing Width
24.3" (61.7 cm)
Housing Height
15.0" (38.0 cm)
Thickness (Without Stand)
2.9" (7.4 cm)
Weight (Without Stand)
7.2 lbs (3.3 kg)
Borders Size (Bezels)
0.2" (0.6 cm)
Design
Controls

There's a single joystick underneath the center of the monitor to control the on-screen display.

Design
In The Box
Power Supply
External Brick

  • DisplayPort cable
  • HDMI cable
  • Power supply
  • Power cord
  • User guides

Picture Quality
7.7
Picture Quality
Contrast
Native Contrast
2,734 : 1
Contrast With Local Dimming
N/A

The Samsung Odyssey G51C has a good native contrast ratio to display fairly deep blacks next to bright highlights in dark rooms.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Edge

The Samsung G51C doesn't have a local dimming feature. We still film these videos on the monitor so you can compare the backlight performance with a monitor that has local dimming.

6.8
Picture Quality
SDR Brightness
Real Scene
242 cd/m²
Peak 2% Window
249 cd/m²
Peak 10% Window
250 cd/m²
Peak 25% Window
250 cd/m²
Peak 50% Window
250 cd/m²
Peak 100% Window
250 cd/m²
Sustained 2% Window
249 cd/m²
Sustained 10% Window
250 cd/m²
Sustained 25% Window
250 cd/m²
Sustained 50% Window
250 cd/m²
Sustained 100% Window
249 cd/m²
Automatic Brightness Limiting (ABL)
0.000
Minimum Brightness
42 cd/m²

The SDR peak brightness is alright. Its brightness is consistent across different scenes, which is fantastic, and while it doesn't get extremely bright, it's still fine if you have a few lights around. However, it struggles in bright environments, like if you place it opposite a bright window. These results are from after calibration in the 'Custom' Picture Mode with the Brightness at its max.

5.9
Picture Quality
HDR Brightness
VESA DisplayHDR Certification
No Certification
Real Scene
279 cd/m²
Peak 2% Window
295 cd/m²
Peak 10% Window
296 cd/m²
Peak 25% Window
297 cd/m²
Peak 50% Window
297 cd/m²
Peak 100% Window
297 cd/m²
Sustained 2% Window
295 cd/m²
Sustained 10% Window
296 cd/m²
Sustained 25% Window
296 cd/m²
Sustained 50% Window
297 cd/m²
Sustained 100% Window
296 cd/m²
Automatic Brightness Limiting (ABL)
0.000

The HDR brightness is disappointing. Without a local dimming feature, small highlights don't pop against the rest of the image, and they're dull and muted. It doesn't follow the target PQ EOTF either, as it severely darkens images. These results are in the HDR Standard mode with the Brightness at its max.

6.3
Picture Quality
Horizontal Viewing Angle
Color Washout From Left
34°
Color Washout From Right
34°
Color Shift From Left
70°
Color Shift From Right
70°
Brightness Loss From Left
43°
Brightness Loss From Right
43°
Black Level Raise From Left
20°
Black Level Raise From Right
22°
Gamma Shift From Left
11°
Gamma Shift From Right
11°

This monitor has a narrow horizontal viewing angle. Images look washed out and darker from the sides, so it isn't ideal for sharing your screen with others.

5.7
Picture Quality
Vertical Viewing Angle
Color Washout From Below
26°
Color Washout From Above
28°
Color Shift From Below
57°
Color Shift From Above
57°
Brightness Loss From Below
30°
Brightness Loss From Above
32°
Black Level Raise From Below
19°
Black Level Raise From Above
21°
Gamma Shift From Below
11°
Gamma Shift From Above
14°

The vertical viewing angle is disappointing. The image looks washed out at wide angles, so you won't see a consistent image if you stand up and look down at the monitor.

8.6
Picture Quality
Gray Uniformity
50% Std. Dev.
1.959%
50% DSE
0.122%

The gray uniformity is excellent. While some of the edges are a bit darker, the screen is uniform throughout, and there aren't any noticeable issues.

8.5
Picture Quality
Black Uniformity
Native Std. Dev.
0.748%
Std. Dev. w/ L.D.
N/A

The Samsung G51C has excellent black uniformity. While it doesn't have a local dimming feature to further improve the black levels, there isn't much noticeable blooming around bright objects.

6.9
Picture Quality
Color Accuracy (Pre-Calibration)
Picture Mode
Custom
sRGB Gamut Area xy
100.5%
White Balance dE (Avg.)
7.86
Color Temperature (Avg.)
8,063 K
Gamma (Avg.)
2.16
Color dE (Avg.)
4.95
Contrast Setting
70
RGB Settings
50-50-50
Gamma Setting
Mode 1
Brightness Setting
100
Measured Brightness
294 cd/m²
Brightness Locked
No

The accuracy before calibration is alright. Although Samsung advertises that it has a dedicated sRGB mode, it isn't available in the list of Picture Modes, as you can see here and here. While colors are still locked to the sRGB color space, most colors are still inaccurate with a cold temperature, meaning they have a blue tint. The white balance is also awful, and the monitor displays too much blue. Lastly, gamma seems to follow a 2.2 target instead of sRGB, so dark scenes are too dark, while bright scenes are slightly over-brightened.

9.0
Picture Quality
Color Accuracy (Post-Calibration)
Picture Mode
Custom
sRGB Gamut Area xy
99.7%
White Balance dE (Avg.)
0.58
Color Temperature (Avg.)
6,539 K
Gamma (Avg.)
2.19
Color dE (Avg.)
3.61
Contrast Setting
70
RGB Settings
42-41-41
Gamma Setting
Mode 3
Brightness Setting
24
Measured Brightness
100 cd/m²
ICC Profile
Download

The Samsung G51C has remarkable accuracy after calibration. A full two-point calibration fixes most issues, especially with the white balance and gamma, but some colors are still slightly inaccurate.

8.6
Picture Quality
SDR Color Gamut
sRGB Coverage xy
95.2%
sRGB Picture Mode
Custom
Adobe RGB Coverage xy
74.7%
Adobe RGB Picture Mode
Custom

The SDR color gamut is excellent. It has near-full coverage of the common sRGB color space, but it's a bit inaccurate as reds and greens are oversaturated, while blues are undersaturated. It also has limited coverage of the Adobe RGB color space, which is disappointing for professional photo editors and publishers.

9.4
Picture Quality
SDR Color Volume
sRGB In ICtCp
97.2%
sRGB Picture Mode
Custom
Adobe RGB In ICtCp
83.2%
Adobe RGB Picture Mode
Custom

The SDR color volume is incredible. It displays most bright colors well, and while it does a good job with darker colors, it doesn't perfectly display all dark colors.

5.7
Picture Quality
HDR Color Gamut
Wide Color Gamut
No
DCI-P3 Coverage xy
73.5%
DCI-P3 Picture Mode
HDR Standard
Rec. 2020 Coverage xy
52.9%
Rec. 2020 Picture Mode
HDR Standard

The HDR color gamut is disappointing. It doesn't display the wide range of colors needed for HDR content in either the DCI-P3 and Rec. 2020 color spaces, and it struggles with tone mapping, so most colors are inaccurate.

6.5
Picture Quality
HDR Color Volume
DCI-P3 In ICtCp
66.7%
DCI-P3 Picture Mode
HDR Standard
Rec. 2020 In ICtCp
48.2%
Rec. 2020 Picture Mode
HDR Standard

The Samsung G51C has an okay HDR color volume. It struggles to display colors as bright as pure white, and it also struggles with dark colors.

7.5
Picture Quality
Reflections
Screen Finish
Matte
Total Reflections
5.8%
Indirect Reflections
3.8%
Calculated Direct Reflections
1.9%

The reflection handling is good. It's fine if you have a few lights around, but the glare can be distracting if you place it opposite a bright window.

7.5
Picture Quality
Text Clarity
Pixel Type
VA
Subpixel Layout
RGB

The Samsung Odyssey G51C has good text clarity. Enabling Windows ClearType (top photo) helps improve the clarity with diagonal lines, but straight lines aren't as bold. These photos are in Windows 10, and you can also see it in Windows 11 with ClearType on and with ClearType off.

9.3
Picture Quality
Gradient
Color Depth
10 Bit

The gradient handling is fantastic. While there's some banding with darker colors, you won't notice much banding with most content.

Motion
8.5
Motion
Refresh Rate
Native Refresh Rate
165 Hz
Max Refresh Rate
165 Hz
Max Refresh Rate Over DP
165 Hz
Max Refresh Rate Over HDMI
144 Hz
Max Refresh Rate Over DP @ 10-bit
120 Hz
Max Refresh Rate Over HDMI @ 10-Bit
60 Hz
Motion
Variable Refresh Rate (VRR)
FreeSync
Yes
G-SYNC
Compatible (Tested)
VRR Maximum
165 Hz
VRR Minimum
< 20 Hz
VRR Supported Connectors
DisplayPort, HDMI
Variable Refresh Rate
Yes

This monitor has FreeSync support that works over DisplayPort and over HDMI (up to 144Hz), but the G-SYNC compatibility only works over DisplayPort. Unfortunately, using VRR in dark scenes can cause some flicker, as you can see here, but it's only in certain scenarios, and it's hard to see.

6.5
Motion
Response Time @ Max Refresh Rate
Recommended Overdrive Setting
AMD FreeSync Premium
Rise / Fall Time
6.2 ms
Total Response Time
14.0 ms
Overshoot Error
3.1%
Worst 3 Rise / Fall Time
21.4 ms
Worst 3 Total Response Time
36.8 ms
Worst 3 Overshoot Error
17.3%

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
StandardChartTablePhoto
FasterChartTablePhoto
ExtremeChartTablePhoto
VRRChartTablePhoto

The response time at the max refresh rate of 165Hz is adequate, but there's visible smearing with fast-moving objects. Enabling FreeSync Premium on the monitor turns off the Response Time setting, so you can't adjust the pixel overdrive with VRR on. That said, motion looks similar with VRR as with the 'Faster' overdrive setting. The downside of using VRR is that there's some flicker in dark scenes, as explained in the Variable Refresh Rate section.

6.2
Motion
Response Time @ 120Hz
Recommended Overdrive Setting
AMD FreeSync Premium
Rise / Fall Time
5.7 ms
Total Response Time
16.0 ms
Overshoot Error
5.9%
Worst 3 Rise / Fall Time
17.7 ms
Worst 3 Total Response Time
37.1 ms
Worst 3 Overshoot Error
22.4%

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
StandardChartTablePhoto
FasterChartTablePhoto
ExtremeChartTablePhoto
VRRChartTablePhoto

The Samsung Odyssey G51C has a mediocre response time at 120Hz. There's visible smearing and blur with fast-moving objects. Although enabling VRR turns off the overdrive settings, it performs similarly to using the 'Faster' and 'Extreme' settings, but 'Normal' has a slower response time.

5.6
Motion
Response Time @ 60Hz
Recommended Overdrive Setting
AMD FreeSync Premium
Rise / Fall Time
4.7 ms
Total Response Time
23.7 ms
Overshoot Error
15.1%
Worst 3 Rise / Fall Time
7.7 ms
Worst 3 Total Response Time
43.5 ms
Worst 3 Overshoot Error
36.7%

Overdrive SettingResponse Time ChartResponse Time TablesMotion Blur Photo
StandardChartTablePhoto
FasterChartTablePhoto
ExtremeChartTablePhoto
VRRChartTablePhoto

The response time at 60Hz is disappointing. Motion is still blurry with noticeable smearing and even image duplication with fast-moving objects with VRR enabled. With VRR disabled, the 'Faster' and 'Extreme' response times have overshoot that causes inverse ghosting, and using 'Standard' instead results in more black smearing.

Motion
Backlight Strobing (BFI)
Backlight Strobing (BFI)
Yes
Maximum Frequency
165 Hz
Minimum Frequency
120 Hz
Longest Pulse Width Brightness
54 cd/m²
Shortest Pulse Width Brightness
54 cd/m²
Pulse Width Control
No
Pulse Phase Control
No
Pulse Amplitude Control
No
VRR At The Same Time
No

Refresh RateFlickerMotion Photo
165HzChartSamsung Odyssey G51C BFI 165Hz
144HzChartSamsung Odyssey G51C BFI 144Hz
120HzChartSamsung Odyssey G51C BFI 120Hz

This monitor has an optional backlight strobing feature, otherwise known as black frame insertion. It only works with Refresh Rate in the on-screen display set to 165Hz, 144Hz, or 120Hz, and you can't enable VRR at the same time. While it reduces motion blur, there's still smearing, and it dims the screen.

10
Motion
Image Flicker
Flicker-Free
Yes
PWM Dimming Frequency
0 Hz

The backlight doesn't use pulse-width modulation and remains flicker-free at all brightness levels, which helps if you're sensitive to flicker.

Inputs
8.8
Inputs
Input Lag
Native Resolution @ Max Hz
4.6 ms
Native Resolution @ 120Hz
5.8 ms
Native Resolution @ 60Hz
9.9 ms
Backlight Strobing (BFI)
7.9 ms

The Samsung G51C has low input lag for a responsive feel, and it doesn't increase at lower refresh rates either, which is great.

8.0
Inputs
Resolution And Size
Native Resolution
2560 x 1440
Aspect Ratio
16:9
Megapixels
3.7 MP
Pixel Density
109 PPI
Measured Screen Diagonal
27.0"
Screen Area
311 in²
7.0
Inputs
PS5 Compatibility
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
VRR
No

This monitor works well with the PS5, but without HDMI 2.1 bandwidth, it can't take full advantage of everything the console offers. You need to disable FreeSync Premium on the monitor for 4k to work with the PS5, but because the VRR doesn't work with the console anyways, it's best to leave that disabled when using the PS5. It displays 4k signals by downscaling them, which results in a more detailed image than native 1440p.

9.2
Inputs
Xbox Series X|S Compatibility
4k @ 120Hz
No
4k @ 60Hz
Yes
1440p @ 120Hz
Yes
1440p @ 60Hz
Yes
1080p @ 120Hz
Yes
1080p @ 60Hz
Yes
HDR
Yes
VRR
Yes

The Samsung Odyssey G51C works well with the Xbox Series X|S but can't take full advantage due to its lack of HDMI 2.1 bandwidth. You need to disable VRR on the monitor for 4k to work, and because the Xbox only supports HDR with 4k signals, you can't enable VRR and HDR at the same time. It displays 4k signals by downscaling them, which results in a more detailed image than native 1440p. Besides that, VRR works well with 1080p and 1440p signals up to 120Hz.

Inputs
Inputs Photos
Inputs
Video And Audio Ports
DisplayPort
1 (DP 1.2)
Mini DisplayPort
No
HDMI
2 (HDMI 2.0)
HDMI 2.1 Rated Speed
No HDMI 2.1
DVI
No
VGA
No
Daisy Chaining
No
3.5mm Audio Out
1
3.5mm Audio In
No
HDR10
Yes
3.5mm Microphone In
No

Although Samsung advertises it supports DisplayPort 1.4, it's limited to DisplayPort 1.2 bandwidth. Even the on-screen display confirms that it supports DisplayPort 1.2, as you can see here.

Inputs
USB
USB-A Ports
1 (Service Port Only)
USB-A Rated Speed
480Mbps (USB 2.0)
USB-B Upstream Port
No
USB-C Ports
0
USB-C Upstream
No USB-C Ports
USB-C Rated Speed
No USB-C Ports
USB-C Power Delivery
No USB-C Ports
USB-C DisplayPort Alt Mode
No USB-C Ports
Thunderbolt
No

You can only use the USB port with a USB drive for firmware updates.

Inputs
macOS Compatibility

The Samsung Odyssey G51C works well with macOS, and there aren't any obvious issues. VRR works well, and while you can enable HDR, it looks washed out and has a cold color temperature. If you're using a MacBook, windows return to their original place when reopening the lid or after waking the laptop up from sleep.

Features
Features
Additional Features
Speakers
No
RGB Illumination
No
Multiple Input Display
No
KVM Switch
No

This entry-level monitor has limited features, and unlike some higher-end Samsung monitors, it doesn't support the Tizen smart platform either. However, it does have a few extra features that you can find in the OSD:

  • Black Equalizer: Adjusts gamma so that it's easier to see opponents in dark areas of games.
  • Eye Saver Mode: Removes blue light to help with eye strain.
  • Refresh Rate: Lets you change the refresh rate directly from the OSD.
  • Virtual Aim Point: Displays a virtual crosshair that your game's anti-cheat tool won't detect, giving you a competitive advantage.

Features
On-Screen Display (OSD)