60th Anniversary SaleEnds Sunday. Exclusions, terms and conditions apply.Shop now

Skip to contentGo to Product Search
Main Content
Only at Best Buy

Samsung - 27" Odyssey G4 (G40H) Fast IPS FHD 300Hz 1ms AMD FreeSync Prem Gaming Monitor with HDR 10 (DisplayPort, HDMI) - Black

Model: LS27HG40DENXGO
SKU: 6668943
Sold byBest Buy

Customers are saying

Customers enjoy the impressive picture quality and smooth performance provided by this monitor, which also features a high refresh rate. Users appreciate the simple design, reliable viewing angles, and the ease of the initial setup process. While the display is praised for its brightness and lightweight build, some users noted the lack of built-in speakers and limited connectivity options.

Generated by AI based on customer reviews.
See it in-store: Roseville has a demo model on display.

Highlights

Features
  • Fast IPS

    Enjoy realistic game scenes on the Odyssey G4 with Fast IPS panel. The 178° wide viewing angle accurately delivers clear, crisp hues that remain consistent from multiple viewpoints, while quick response time reduces motion blur and ghosting — providing an engaging gaming experience.

  • 300Hz Refresh Rate & 1ms Response Time

    React fast and stay ahead of the competition on the Odyssey G4 with a 300Hz refresh rate and 1ms GtG response time. This display delivers splitsecond responsiveness and ensures that your moves are captured in real-time, giving you unbeatable gaming precision with minimized lag.²

  • HDR10

    Immerse yourself in lifelike visuals with improved contrast and color accuracy, thanks to HDR10. The high dynamic range on the Odyssey G4 provides brighter highlights and nuanced shadows for added depth — making scenes feel more vivid and realistic.¹

  • G-Sync Compatible and AMD FreeSync Premium

    Get smooth action without disruption. G-Sync compatibility syncs the GPU and panel to reduce choppiness, screen lag and image tearing, while AMD FreeSync Premium creates ultra-smooth scenes that flow smoothly to the next.³

  • Black Equalizer

    Black Equalizer allows you to adjust dark areas in games, to easily locate your opponents, even in the deepest shadows.⁴

  • Virtual Aim Point

    Gain precision in your shots with Virtual Aim Point. Crosshairs on the Odyssey G4's screen increase the accuracy of your aim when the action peaks.

  • Ergonomic Stand

    Reach the height of winning in total comfort with Samsung's Ergonomic Stand. Simply swivel, tilt and adjust your Odyssey G4 until all enemies are in perfect view.

See all features
Specifications
  • Refresh Rate
    300Hz
    Maximum Resolution
    1920 x 1080
    Response Time
    1 milliseconds
    Panel Type
    IPS
    Synchronization Technology
    FreeSync Premium (AMD Adaptive Sync), G-SYNC Compatible (NVIDIA Adaptive Sync)
Sponsored

Reviews

Rating 4.7 out of 5 stars with 100 reviews

95% would recommend to a friend
Customers are sayingCustomers enjoy the impressive picture quality and smooth performance provided by this monitor, which also features a high refresh rate. Users appreciate the simple design, reliable viewing angles, and the ease of the initial setup process. While the display is praised for its brightness and lightweight build, some users noted the lack of built-in speakers and limited connectivity options.
This summary was generated by AI based on customer reviews.
  • Picture Quality (38)
  • Refresh Rate (25)
  • Performance (13)
  • Design (6)
  • Brightness (5)
  • Connectivity (5)
  • Speakers (3)

Customer Images

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.

  • Rated 5 out of 5 stars

    10/10 would recommend

    Great product right out of the box. Clean and smooth look with very easy set up and ultimately great visuals and speed to back it up. Great for new and old PC gamers.

    Posted by ALEXA

  • Rated 5 out of 5 stars

    300hz for the win

    Great monitor. I got it on sale and I don’t think I could have gotten a better deal

    Posted by MATTHEWB

  • Rated 4 out of 5 stars

    Great monitor

    Looks great and runs great picture quality is exactly what I wanted

    Posted by SEBASTIAN

  • Rated 5 out of 5 stars

    Amazing Gaming Monitor

    The Samsung Odyssey G4 27" Gaming Monitor exceeded all of my expectations. As part of my first gaming PC build, I wanted a monitor that could handle fast-paced games while still delivering a great-looking picture, and this monitor does exactly that. The 300Hz refresh rate is incredibly smooth, making games feel responsive and fluid. Whether I'm playing Fortnite, Cyberpunk 2077, GTA, or other action-packed games, everything looks sharp and runs beautifully. The 1ms response time helps eliminate motion blur, and AMD FreeSync Premium keeps gameplay smooth without screen tearing. The Fast IPS panel provides excellent color quality and wide viewing angles, while HDR10 adds extra depth and detail to supported games and content. The 27-inch size is perfect for gaming, offering plenty of screen space without overwhelming my desk. Setup was quick and easy using DisplayPort, and the monitor worked flawlessly right out of the box. The sleek black design also gives my gaming setup a clean, modern look. If you're looking for a high-performance gaming monitor with exceptional speed, image quality, and value, the Samsung Odyssey G4 is an outstanding choice

    Posted by GideonP

  • Rated 3 out of 5 stars

    FPS gamers = yes; General purpose users = pass

    It’s 2026 and we have more monitor (and PC solutions) than ever before, while prices have continued to fall (well, all but HDDs and RAM which have reversed during this AI data center explosion). Fortunately most of those servers are headless and not requiring dedicated monitors, which is a benefit to we consumers. Today we’re looking at the Samsung Odyssey G4 27-inch speed demon of a monitor, featuring a 300 Hz scanning rate, with 1 millisecond response, but less resolution than discriminating users may demand. If you play FPS and quick response games you’ll likely love this monster of a monitor. Albeit caveat emptor, this 300 Hz speed comes at a cost of resolution, featuring just 1920x1080p max resolution. If i had my druthers I’d likely have selected a 1440p 240 Hz screen, though my usage is not just gaming, but also general purpose, work, security, etc. When gaming speed matters, it is very noticeable of the refresh rate over 60 Hz (duh?), 120 Hz, 144 Hz, and 165 Hz monitors, supposedly even newer 240 Hz monitors though i could not tell a difference from my primary monitor over DisplayPort 1.2, rightfully so as the HDMI 2.0 input has max refresh of 240Hz. Don’t get me wrong, i remain mostly impressed by this monitor, however i personally feel a 1440p w 240 Hz refresh or ultrawide monitor rate might appease more than just hardcore FPS speed prioritized customers. PROS +simple assembly +HDR 10 support +300Hz refresh rate (DP 1.2) +240Hz refresh rate (HDMI 2.0) +super fast 1ms response rate +anti-glare display screen +included DisplayPort cable +Nvidia G-Sync / AMD FreeSync +IPS panel = excellent wide-screen viewing +both HDMI and DisplayPort inputs (no USB-C though) +makes a great 2nd screen CONS -lack of 4k -no HDMI 2.1 -limited pixel density -slight backlight bleed -only 1920x1080 resolution -needs HDMI dongle on a Mac -no on- board speakers, audio out -on single display not the primary imho -less Cinematic than a deeper black VA panel CONCLUSION While there are several valid use-cases for a low-cost, ultra fast monitor sure to appease speed freaks, I feel the lack of resolution is a major drawback, and recommend a pre versatile product. RECOMMEND - look for Samsung 1440p or 1600p ultrawide res with 240 Hz refresh rate imho if you want to extent the longevity and prevent a 3-5 year paper weight taking up space.

    Posted by TechReviews

From the Manufacturer

Compare similar products

Samsung - 27" Odyssey G4 (G40H) Fast IPS FHD 300Hz 1ms AMD FreeSync Prem Gaming Monitor with HDR 10 (DisplayPort, HDMI) - Black
Samsung - 27" Odyssey G4 (G40H) Fast IPS FHD 300Hz 1ms AMD FreeSync Prem Gaming Monitor with HDR 10 (DisplayPort, HDMI) - Black

Samsung’s 27" Odyssey G4 Gaming Monitor offers brilliant lifelike visuals for exhilarating, engaging gameplay. Fast IPS panel with a 178° wide viewing angle accurately delivers clear, crisp hues that remain consistent from multiple viewpoints. HDR10 provides brighter highlights and nuanced shadows for added depth and more realistic scenes. 300Hz Refresh Rate and 1ms response time (GtG) enables ultra-smooth gaming precision with minimized screen lag, while AMD FreeSync Premium reduces choppiness and image tearing. Black Equalizer enhances visibility in dark scenes, making it easier to view fine details, while Virtual Aim Point provides elevated precision and accuracy. Height-adjustable Ergonomic Stand pivots, tilts, and swivels for the perfect view.

Alienware - AW2726DM 27" QD-OLED QHD 240Hz 0.03ms FreeSync Premium Pro Gaming Monitor with HDR (HDMI, DisplayPort) - Black

Alienware 27 240Hz QD-OLED Gaming Monitor. Take in superb QD-OLED visuals and fluid gameplay on the 27" flat panel monitor featuring a fast 240Hz refresh rate.

Samsung - 32" Odyssey G51F QHD 180Hz 1ms AMD FreeSync Gaming Monitor with HDR10 (DisplayPort, HDMI) - Black

Samsung’s 32” Odyssey G5 G51F Gaming Monitor boasts incredibly detailed, pin-sharp images with QHD resolution (2560x1440). HDR10 provides brighter highlights, improved contrast and color accuracy, making every scene feel more vivid and realistic. 180Hz Refresh Rate and near-instant 1ms Response Time (MPRT) captures all your moves with reduced lag for ultra-smooth gameplay. AMD FreeSync Premium Pro reduces choppiness, screen lag, and image tears. Black Equalizer allows you to adjust dark areas in games, so you can locate opponents hiding in the deepest shadows. Virtual Aim Point allows you to hit your marks with next-level accuracy, giving you the optimal aim with crosshairs on the screen. Auto Source Switch+ instantly switches to a new source signal when connected devices are turned on, without having to use multiple inputs. Ergonomic stand makes it simple to tilt and adjust the monitor for total gaming comfort.

Samsung - 27" Odyssey G5 (G50F) QHD Fast IPS 180Hz 1ms G-Sync & FreeSync Compatible Gaming Monitor (DisplayPort, HDMI) - Black

Samsung’s 27" Odyssey G5 QHD Gaming Monitor delivers brilliant visuals for exhilarating gameplay that’s more immersive than ever before. QHD resolution (2560 x 1440), with more than 1.7 times the pixel density of Full HD, boasts incredibly detailed, pin-sharp images. The fast IPS panel, with its 178º viewing angle, provides an engaging gaming experience by consistently delivering crisp, clear hues from various viewpoints. 180Hz Refresh Rate and 1ms response time (GtG) allow ultimate speed for ultra-smooth gaming precision, while G-Sync compatibility syncs the GPU and panel to reduce choppiness, screen lag, and image tearing. Scenes feel more realistic with HDR10, which provides brighter highlights and nuanced shadows for added depth. Black Equalizer improves visibility in the deepest shadows, while Virtual Aim Point increases the accuracy of the player’s aim when the action peaks. Auto Source Switch+ allows instantaneous switching between connected devices without having to flip through multiple inputs. Maintain winning streaks in total comfort with the height-adjustable Ergonomic Stand that easily pivots, tilts, and swivels for the perfect view.

Pros for Samsung - 27" Odyssey G4 (G40H) Fast IPS FHD 300Hz 1ms AMD FreeSync Prem Gaming Monitor with HDR 10 (DisplayPort, HDMI) - Black
Refresh Rate, Picture Quality, Performance, Design, BrightnessRefresh Rate, Overall Performance, OLED Quality, Stand AdjustabilityOverall Performance, Refresh Rate, Resolution, Screen SizeOverall Performance, Refresh Rate, Resolution
Cons for Samsung - 27" Odyssey G4 (G40H) Fast IPS FHD 300Hz 1ms AMD FreeSync Prem Gaming Monitor with HDR 10 (DisplayPort, HDMI) - Black
Connectivity, SpeakersBrightness, USB Ports, Built-in SpeakersSpeakers, Connectivity, Black Levels, HDR PerformanceConnectivity, Button Placement

Specs

Questions & Answers
  • Can the base be changed? Maybe I am not calling it the correct name, the big plate that is approx 10 inches that is balancing it. I want to know if that stand can be changed to something smaller so it doesn't take up so much room on my desk.

    lonintoknow: Yes, the large flat stand base (often called the pedestal or foot) can be completely replaced with a much smaller desk mount or monitor arm. The Samsung Odyssey G40H supports a standard 100 x 100 mm VESA mount on the back, meaning you can remove the factory stand and attach a compact desk stand or a clamp-style monitor arm. - Samsung Monitors

    Answered by Samsung
    Samsung response
  • Does this support 4k?

    Phantomgreen: No, the Samsung G40H monitor does not support 4K resolution. It is strictly a Full HD (FHD) 1920 × 1080 display. - Samsung Monitors

    Answered by Samsung
    Samsung response
  • Is the stand height adjustable for this monitor?

    Yes, the stand is height adjustable.

    This question and answer was generated by AI based on customer and product data.
  • What is the refresh rate for this monitor?

    The refresh rate of this monitor is 300Hz.

    This question and answer was generated by AI based on customer and product data.
  • Are there built-in speakers in this monitor?

    No, this monitor does not have integrated speakers.

    This question and answer was generated by AI based on customer and product data.
Ask a question
No content

Customers often buy these together

Sponsored

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later
Lease to own

Special Offers

Top Offers
Included with Purchase

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later
Lease to own

Special Offers

Top Offers
Included with Purchase