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LG’s UltraGear 720Hz dual-mode OLED gaming monitor hits lowest price at $300 off ahead of Prime Day

As part of its early Prime Day deals, Amazon is now offering LG’s 27-inch UltraGear dual-mode OLED gaming monitor for $699.99 shipped. This is one of the fastest OLED monitors out there, sporting a panel that can hit refresh rates of up to 720Hz. It typically goes for $1,000, but today’s deal takes $300 off its usual going rate to land it $50 below the previous all-time low it first hit earlier this year. This is the lowest we have seen this model drop to date, and you can learn more about it in detail below.

The highlight of this gaming monitor is its support for the dual-mode feature, with which it can run at 720Hz in HD for the fastest possible competitive play, or switch to QHD at 540Hz if you would rather have a sharper image for slower-paced cinematic games. LG pairs that flexibility with a 0.02ms response time, NVIDIA G-Sync and AMD FreeSync support, and its 4th Gen Primary RGB Tandem OLED panel, which it says makes this its brightest OLED gaming monitor yet at up to 335 nits. This panel also offers a good set of connectivity options to get you a DisplayPort 2.1, a USB-C port, and two HDMI 2.1 ports.

Samsung’s Odyssey G9 49-inch gaming monitor is also worth considering while it’s down to $650, if you would rather buy an ultrawide display for your battlestation. It sports a DQHD 240Hz panel, and it’s down from its usual price of $1,000.

LG UltraGear 27GX790B-B 27-inch dual-mode monitor features:

  • Outrageous Speed with LG’s Brightest OLED Gaming Monitor – Experience the brightness and speed of 4th Gen OLED on a vivid 27″ QHD display—engineered for ultra-smooth, tear-free gameplay. With a refresh rate up to 720Hz and lightning-fast 0.02ms response time, you’ll react faster, track every movement with precision, and outpace your opponents frame by frame with astounding brightness, clarity and speed.
  • Our Brightest, Boldest OLED Gaming Monitor – Powered by UltraGear’s latest OLED with Primary RGB Tandem tech, this is LG’s brightest OLED gaming monitor yet—reaching 335 nits typical brightness for clear visibility in bright scenes. Enhanced APL and reduced ABL keep critical visuals sharp during intense action, while UL Verified Perfect Black and DisplayHDR True Black 500 deliver deep contrast and pinpoint detail.
  • Next-Gen OLED Brilliance – 4th Gen Primary RGB Tandem OLED reaches 335 nits typical brightness while using less power than previous UltraGear OLED generations. The display’s advanced 4-stack RGB structure delivers enhanced contrast, sharper detail, and color precision that stays consistent across every frame.
  • Dual Mode: QHD 540Hz for Detail or HD 720Hz for Speed – Dual Mode pushes gaming speed to the edge, letting you toggle between QHD resolution at 540Hz or HD at 720Hz from a hotkey. Gain outrageous speed and responsiveness for split-second decisions and competitive domination.

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Avatar for Karthik Iyer Karthik Iyer

Karthik Iyer is a writer at 9to5Toys, serving recommendations and deals on PC, games, computing parts, and other gaming accessories.


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