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45 inch LG OLED gaming monitor with 240Hz refresh rate has hundreds slashed off the price in this limited time Amazon deal
This 3440x1440 ultrawide gaming monitor is a fantastic premium display for immersive singleplayer or competitive multiplayer titles
Aaron Ritchie
Last Updated on June 21, 2026
PC Guide is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Read More
Table of Contents
What we like about this LG UltraGear 45GX900A-B monitor
Massive 45-inch OLED ultrawide
240Hz OLED speed
Early Prime Day deals
Deep blacks and strong HDR presentation
HDMI 2.1, DisplayPort, and USB-C
Prime Day is coming â donât miss the deals
Who should buy this OLED ultrawide monitor?
Alternative deals on OLED displays
The LG UltraGear 45GX900A-B is a premium immersive gaming monitor with a huge OLED panel, 240Hz refresh rate, 0.03ms response, deep contrast, and strong connectivity. It is a standout choice for users who want scale and speed in one OLED display. This monitor should feel fast, smooth, and visually dramatic in every scenario you throw at it. The 800R curve pulls the image into your peripheral vision, while OLED contrast gives games and HDR content a premium look. The combination of the high refresh rate and unbeatable OLED response times will also give you that edge in fast-paced competitive titles. Act fast while this excellent offer still lasts!
Prices and savings subject to change. Click through to get the current deal prices.
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Save 47% now!
LG 45GX900A-B 45-Inch Ultragear WQHD OLED Curved Gaming Monitor
3440 x 1440, 240Hz, 0.03ms, NVIDIA G-Sync, VESA DisplayHDR True Black 400, HDMI 2.1, DisplayPort, USB Type-C PD 65W, Black
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What we like about this LG UltraGear 45GX900A-B monitor
Massive 45-inch OLED ultrawide
The LG 45GX900A-B uses a 44.5-inch 3440 x 1440 OLED panel with a 21:9 aspect ratio, giving it an extremely immersive feel. LG claims the 45-inch 21:9 format offers more screen area than a 49-inch 32:9 display, making it excellent for cinematic gaming.
240Hz OLED speed
With a 240Hz refresh rate and 0.03ms response time, this monitor is built for fast, fluid gameplay. OLED’s near-instant pixel response helps reduce ghosting and smearing, while the high refresh rate improves motion clarity and responsiveness.
Early Prime Day deals
Prime Day is almost here, and we've found all the best early deals on tech and gaming.
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Prices correct as of June 18th on Amazon.com.
Deep blacks and strong HDR presentation
OLED contrast is the big visual advantage here, with a claimed 1,500,000:1 contrast ratio, up to 98.5% DCI-P3 coverage, and VESA DisplayHDR True Black 400. Dark scenes should look especially rich, with precise shadow detail and excellent black levels.
HDMI 2.1, DisplayPort, and USB-C
Connectivity is strong, with HDMI 2.1, DisplayPort 1.4, and USB-C with 65W power delivery. FreeSync Premium Pro and G-Sync compatibility also make it flexible for AMD, NVIDIA, PC, and console setups.
Prime Day is coming — don’t miss the deals
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Ages 18–24 can get a 6-month Prime trial for $0
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Who should buy this OLED ultrawide monitor?
The LG 45GX900A-B is for gamers who want maximum immersion from an OLED ultrawide rather than a compact esports display. It is especially suited to racing games, RPGs, simulators, cinematic single-player titles, and high-end PC setups.
Alternative deals on OLED displays
Prices and savings subject to change. Click through to get the current deal prices.
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Save 45% now!
SAMSUNG 27” Odyssey OLED G6 G60SF QHD QD-OLED Gaming Monitor
500Hz Refresh Rate, 0.03ms (GtG) Response Time, G-Sync Compatible, VESA DisplayHDR TrueBlack 500, LS27FG602SNXZA, 2025, 3 Yr Warranty
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Save 22% now!
LG 45GX950A-B 45-inch Ultragear 5K2K WUHD OLED Curved Gaming Monitor
Dual-Mode, 165Hz, 0.03ms, NVIDIA G-Sync, AMD FreeSync Premium Pro, HDR True Black 400, USB Type-C 90W, DP2.1, Black
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Save 30% now!
SAMSUNG 27-Inch Odyssey G6 (G60SD)
OLED Gaming Monitor with QHD 360Hz 0.03ms, Anti-Glare, Sleek Metal Design, LS27DG602SNXZA, 2024, 3 Year Warranty
Best Deals
Deal @ Amazon
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Save 30% & get RE Requiem now!
Samsung 49″ Odyssey OLED G9 (G93SC) Curved Gaming Monitor
QD-OLED, 240Hz, 0.03ms, DQHD, G-Sync Compatible, AMD FreeSync Premium Pro,Height Adjustable Stand,3 Yr Warranty,LS49CG932SNXZA
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Save 10% now!
MSI MPG 321CURX QD-OLED 32-inch monitor
3840 x 2160 (UHD) Computer Monitor, 240Hz, Adaptive-Synch, HDMI, DP Port, VESA Mountable, Tilt, Speaker, 0.03ms, Black
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Save 30% now!
LG 27GX700A-B 27-inch Ultragear QHD (2560 x 1440) OLED Gaming Monitor
280Hz, 0.03ms, NVIDIA G-Sync, AMD FreeSync Premium Pro, VESA DisplayHDR TrueBlack500, with up to DCI-P3 99.5%, HDMI 2.1, Black
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Save 8% now!
Alienware AW2725DF OLED Gaming Monitor
26.7-inch Quantom-Dot WQHD (2560×1440) 360Hz 0.03Ms Display, AMD FreeSync Premium Pro, HDMI/DP/USB 3.2 Gen1, Height/Tilt/Swivel/Pivot Adjustability – Black
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Save 17% now!
ASUS ROG Strix 34” OLED Curved Ultrawide Gaming Monitor (XG34WCDMTG)
240Hz, 0.03ms, FreeSync & GSYNC Compatible, WiFi 6, NVIDIA GeForce Now, Dolby Vision, Dolby Atmos
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Save $250 now!
MSI MPG 321URX (4K, OLED) Gaming Monitor
4K UHD Quantum Dot OLED Gaming Monitor, 3840 x 2160, 0.03ms, 240Hz, True Black HDR 400, 90W USB Type C, HDMI, DP Port
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Save 14% now!
MSI MPG 271QRX QD-OLED
27 OLED Gaming Monitor 2560 x 1440 (QHD), 0.03ms Response time, 360Hz, True Black HDR 400, HDMI, DP Port, USB Type C, Tilt, Height, Black
Best Deals
Deal @ amazon
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About the Author
Aaron Ritchie
Aaron's laptop knowledge makes him the go-to guy on PC Guide. But he still finds time for features, deals and much more.
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Table of Contents
What we like about this LG UltraGear 45GX900A-B monitorMassive 45-inch OLED ultrawide240Hz OLED speedDeep blacks and strong HDR presentationHDMI 2.1, DisplayPort, and USB-CWho should buy this OLED ultrawide monitor?Alternative deals on OLED displays
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