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AOC

AOC 27 Inch Gaming Monitor QHD 300Hz Mini-LED HDR1000, Q27G4SMN

  • Based on 17 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, Sep 4
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Size: 27" 300Hz Mini-LED


Features

  • 27" QHD MINI-LED DISPLAY Experience sharp 25601440 QHD resolution on a 27-inch mini-LED VA panel with 1152 local dimming zones, delivering deep contrast, vivid colors, and enhanced detail for immersive gaming.
  • 300HZ REFRESH RATE & 1MS RESPONSE TIME Gain a competitive edge with an ultra-smooth 300Hz refresh rate via DisplayPort or HDMI and a fast 1ms GtG response time, minimizing motion blur and ghosting during fast-action gameplay.
  • DISPLAYHDR 1000 CERTIFIED Enjoy brighter highlights and deeper contrast with DisplayHDR 1000 certification, delivering enhanced HDR visuals for gaming, streaming, and multimedia content.
  • WIDE COLOR GAMUT PERFORMANCE Featuring an expanded color range of 150.2% sRGB (CIE1976), this monitor provides vibrant, accurate colors for immersive visuals and improved content clarity.
  • ADAPTIVE-SYNC & ERGONOMIC DESIGN Stay in sync with Adaptive-Sync technology for smooth, tear-free gameplay, while the fully ergonomic stand offers height adjustment (130mm), tilt, swivel, and pivot for optimal comfort during extended sessions.

Description

The AOC GAMING Q27G4SMN delivers elite gaming performance and stunning HDR visuals with a 27-inch mini-LED VA panel featuring 1152 local dimming zones, producing deep blacks and precise contrast for immersive gameplay. The QHD 2560×1440 resolution combined with an ultra-fast 300Hz refresh rate via DisplayPort or HDMI ensures incredibly smooth motion and sharp image clarity during fast-paced gaming. With DisplayHDR 1000 certification, this monitor enhances your viewing experience with brighter highlights and improved dynamic contrast for HDR gaming and entertainment. A wide color gamut reaching over 150% sRGB (CIE1976) delivers vibrant colors and lifelike visuals across games, videos, and creative work. Built for both performance and comfort, the Q27G4SMN includes Adaptive-Sync technology, 1ms GtG response time, Flicker- Free technology, and Low Blue Light features to support long gaming sessions. A fully adjustable ergonomic stand with height, tilt, swivel, and pivot adjustments allows you to find the perfect viewing angle, while versatile connectivity including DisplayPort 1.4 and HDMI 2.1 ports ensures seamless integration with modern gaming setups.

Brand: AOC


Screen Size: 27 inches


Resolution: QHD Wide 1440p


Aspect Ratio: 169


Screen Surface Description: Glossy


Aspect Ratio: 169


Screen Finish: Glossy


Contrast Ratio: 10001


Refresh Rate: 300


Display Type: mini-LED VA panel


Display Technology: VA


Picture Quality Enhancement Technology: DisplayHDR 1000, Wide Color Gamut, Adaptive-Sync


Screen Size: 27 inches


Item Dimensions D x W x H: 9.45"D x 24.17"W x 20.33"H


Resolution: QHD Wide 1440p


Display Resolution Maximum: 2560 x 1440


Native Resolution: 2560x1440


Response Time: 1 milliseconds


Number of Component Outputs: 2


Additional Features: Adaptive Sync


Color: Black


Brand: AOC


Model Number: Q27G4SMN


Model Name: Q27G4SMN


Warranty Description: 3 Year Manufacturer


UPC: 685417744688


Manufacturer: AOC


Unit Count: 1 Count


Connectivity Technology: DisplayPort, HDMI


Hardware Connectivity: DisplayPort, HDMI


Adaptive Sync: FreeSync


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Sep 4

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Similar Products

Top Amazon Reviews

    • Stellar so far.
Size: 27" 300Hz Mini-LED
Crazy bright, REAL HDR. You can use local dimming in SDR as well, turning it into kind of a "quasi HDR" so that's amazing, and my operating sytem (Linux) can adjust brightness in HDR. Really the best of both worlds there. The "halo effect" on the dimming is minimal, I was struggling to notice it in worst case scenarios. The color gamut is wide and beautiful, and it does get extremely black when it needs to - offering something close to an OLED experience but without many of the drawbacks and babysitting. Mine arrived factory calibrated with a report, which is very nice. It also came with a HDMI 2.1 cable AND displayport cable, which is also great. The stand is OK, it does what most people need - a small gripe would be that the monitor wobbles a bit when you press buttons for the On Screen Display (OSD) menu, but that's a very minor complaint. The status of the Freesync on this monitor is kind of nebulous, as another reviewer mentioned. AOC definitely advertised Freesync Premium Pro on their website's product page, so I might knock a point off later after I test in more games/content. Overall, I'm very pleased after the quick testing I've done, but I will return to update my review IF I find something unfortunate after further experience and tests. ... show more
Reviewed in the United States on July 26, 2026 by Happy feet
    • Great monitor, AOC bugs hamper full five stars.
Size: 27" 300Hz Mini-LED
I can confirm at the very least this monitor supports 10bit color @ 1440p300hz when using Displayport connected to a 9070XT. Local dimming is much better than its predecessor with the G4XMN with the 1100+ local dimming zones v. 336 on the 3XMN. Making it on par with the 4XMN/41XMN2. The main difference between the 4XMN/41XMN2 outside of the refresh rate is that this definitely has 10bit color support and an additional HDMI port. It does use the old school buttons for monitor navigation so if that is a pain point I would avoid but if you don't mind the old way of navigating the OSD then it's fine. Monitor can use VESA mounts if you don't want to use the stand. I would give this monitor a full 5 stars however I'm currently working with AOC support on the exact status of Freesync Premium Pro. On their website it is explicitly advertised with Freesync Premium Pro, however the monitor itself only shows adaptive sync and in the AMD Adrenaline settings on Adaptive sync Compatible is shown as the Dynamic Refreshrate setting. ... show more
Reviewed in the United States on July 13, 2026 by Jonathan
    • Excellent Factory Calibration
Size: 27" 300Hz Mini-LED
Review Image by frugerd
Very satisfied with the monitor. I've been using it for one week. My unit arrived with an individual factory calibration report showing an sRGB Avg. Delta E of 0.45 and luminance uniformity ranging from 95.2% to 101.5% across all measured points. I think I got lucky. The OSD uses four separate buttons, so it's a little complicated to navigate at first. However, if you don't change the settings very often, it's not a problem. ... show more
Reviewed in the United States on July 20, 2026 by frugerd
    • Should you buy this?
Size: 27" 300Hz Mini-LED
Its simple - If you come from something worse like an IPS or 1080p non oled itll probably be great and a good thing to get. If you have better than that you need to spend a lot more and get something much better otherwise itll look the same or even worse depending on what you have 300 for this quality is totally worth it for ips users (or i guess va if you use that), would still recommend it from a 1440p ips too if you dont have money for something nicer ... show more
Reviewed in the United States on July 29, 2026 by Anonymous
    • Great monitor
Size: 27" 300Hz Mini-LED
Great monitor
Reviewed in the United States on July 21, 2026 by Bimmy_Burner
    • Another win for AOC monitors
Size: 27" 300Hz Mini-LED
AOC Just keeps cranking out winner after winner. Another monitor that is beyond expectations at it's price point. Color and image quality are great, and a 300HZ refresh rate makes it very suitable for gaming today. As always, the quality built in to this AOC monitors isa present in this one as well. With all the customization I have come to expect from AOC, you can adjust the screen to fit your play style and preferences. Highly recommended. Pros: Connectivity options, great picture quality, great price for the monitor Cons: None ... show more
Reviewed in the United States on August 17, 2026 by Amazon Customer
    • Great Mini-LED performance with vibrant colors
Size: 27" 300Hz Mini-LED
AOC has a reputation for high-quality budget monitors, and this Mini-LED model fits that description well. It is notably lightweight, which is a big plus if you plan on using a monitor arm like I do. The image quality is excellent, with black levels and vibrant colors that come very close to my OLED screen of the same size. I specifically picked this up because I often leave static windows open for days and wanted to avoid the burn-in risks associated with OLED, and this feels like a perfect middle ground. Performance has been smooth without any noticeable stuttering or smearing. I did have one hurdle with the HDMI 2.1 connection where the refresh rate capped at 144Hz. It could be a cable or setting issue on my end, but I didn't bother troubleshooting extensively since the DisplayPort connection worked flawlessly at the full 300Hz right away. There is also a slight reddish tint when viewing the screen from an angle, though it isn't an issue during normal use since I'm always sitting directly in front of it. For the price, it’s an impressive display that holds its own against more expensive tech. ... show more
Reviewed in the United States on August 6, 2026 by Christopher McLaughlin
    • Works as advertised.
Size: 27" 300Hz Mini-LED
For a 27" gaming monitor, this is a great one to get for the cost. It does have a full array of 4,608 LED beads across it's 1,152 local dimming zones that enhances the picture quality and gaming performance. This advanced structure enhances the contrast of the colors and it will produce a deeper black with no sacrificing of those bright colors (thanks, HDR!!!). It does have a max 25.60x1440 (QHD) resolution in the 16:9 aspect ratio that gives it a strong depth of color and shadow detail than most of the IPS screens out there. Be sure to download the FreeSync technology to help get the tear-free stable gameplay. The monitor does have 2 x HDMI 2.1, 1 x DisplayPort 1.4 with DSC, and 1 x audio output port. Overall, it blends great premium HDR performance, great refresh rates (300Hz), and color accuracy that monitors in this price range find it difficult to complete, especially with the mini LED backlight. If there's anything that I don't like about it is that the viewing angle is narrow so you would need to get it positioned just right if it's not your primary monitor. Overall, great value for your money. Compatibility ... show more
Reviewed in the United States on July 29, 2026 by Bobby D

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