10 Best 4k monitor 40 inch oled

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Last Updated: 11-29-2025

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LG 32GX870A-B 32-inch Ultragear 4K UHD (3840 x 2160) OLED Gaming Monitor, Dual-Mode, 240Hz, 0.03ms, NVIDIA, AMD FreeSync Premium Pro, VESA DisplayHDR True Black 400, USB Type-C, DP2.1, Black

9.8

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- 25%

MSI MPG 491CQPX QD-OLED 49-inch QD-OLED 5120 x 1440 (DQHD) Computer Monitor, 240Hz, Adaptive-Sync, HDMI, Display Port, VGA Port, VESA Mountable, Tilt, Height Adjustable, Speaker, 0.03ms, Black

msi

9.6

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- 31%

ASUS ROG Swift 32” 4K OLED Gaming Monitor (PG32UCDM) - UHD (3840 x 2160), QD-OLED, 240Hz, 0.03ms, G-SYNC Compatible, Custom Heatsink, Graphene Film, 99% DCI-P3, True 10-bit, 90W USB-C

ASUS

9.5

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- 47%

LG 45GX900A-B 45-Inch Ultragear WQHD (3440 x 1440) OLED Curved Gaming Monitor, 240Hz, 0.03ms, NVIDIA G-Sync, VESA DisplayHDR True Black 400, HDMI 2.1, DisplayPort, USB Type-C PD 65W, Black

9.2

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- 10%

LG 42-Inch Class OLED evo AI 4K C5 Series Smart TV w/Dolby Atmos, Dolby Vision, HDR10, AI Super Upscaling 4K, Filmmaker Mode, Wow Orchestra, Alexa Built-in (OLED42C5PUA, 2025)

9.1

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- 25%

MSI MAG 321UPX QD-OLED, 32" 4K UHD Quantum Dot OLED Gaming Monitor, 3840 x 2160, 0.03ms, 240Hz, True Black HDR 400, 15W USB Type C, HDMI, DP Port

msi

8.8

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LG 34GX900A-B 34-Inch Ultragear WQHD (3440 x 1440) OLED Curved Gaming Monitor, 240Hz, 0.03ms, NVIDIA G-Sync, VESA DisplayHDR True Black 400, HDMI 2.1, DisplayPort, USB Type-C PD 65W, Black

8.6

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- 29%

Dell 32 Plus 4K QD-OLED Monitor S3225QC - 31.6-inch (3840 x 2160) 120Hz 0.03ms Display, AI-Enhanced 3D Spatial Audio, Height/Tilt/Swivel/Slant Adjustment - Ash White

Dell

8.4

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- 35%

INNOCN 40C1R Ultrawide Monitor 40" WQHD 3440 x 1440p 144Hz FreeSync Premium HDR400 21:9 Computer Display 95% DCI-P3 500Nits IPS USB Type-C HDMI Tilt/Height Adjustable, Mountable

INNOCN

8.2

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- 28%

Samsung 43” Smart Monitor M7 (M70F) 4K UHD Display, Samsung Vision AI, Smart TV Apps, Gaming Hub, USB-C, HDMI and USB-A, Black, LS43FM702UNXZA, 2025

Samsung

8.1

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LG 32GX870A-B 32-inch Ultragear 4K UHD (3840 x 2160) OLED Gaming Monitor, Dual-Mode, 240Hz, 0.03ms, NVIDIA, AMD FreeSync Premium Pro, VESA DisplayHDR True Black 400, USB Type-C, DP2.1, Black

MSI MPG 491CQPX QD-OLED 49-inch QD-OLED 5120 x 1440 (DQHD) Computer Monitor, 240Hz, Adaptive-Sync, HDMI, Display Port, VGA Port, VESA Mountable, Tilt, Height Adjustable, Speaker, 0.03ms, Black

ASUS ROG Swift 32” 4K OLED Gaming Monitor (PG32UCDM) - UHD (3840 x 2160), QD-OLED, 240Hz, 0.03ms, G-SYNC Compatible, Custom Heatsink, Graphene Film, 99% DCI-P3, True 10-bit, 90W USB-C

LG 45GX900A-B 45-Inch Ultragear WQHD (3440 x 1440) OLED Curved Gaming Monitor, 240Hz, 0.03ms, NVIDIA G-Sync, VESA DisplayHDR True Black 400, HDMI 2.1, DisplayPort, USB Type-C PD 65W, Black

LG 42-Inch Class OLED evo AI 4K C5 Series Smart TV w/Dolby Atmos, Dolby Vision, HDR10, AI Super Upscaling 4K, Filmmaker Mode, Wow Orchestra, Alexa Built-in (OLED42C5PUA, 2025)

MSI MAG 321UPX QD-OLED, 32" 4K UHD Quantum Dot OLED Gaming Monitor, 3840 x 2160, 0.03ms, 240Hz, True Black HDR 400, 15W USB Type C, HDMI, DP Port

LG 34GX900A-B 34-Inch Ultragear WQHD (3440 x 1440) OLED Curved Gaming Monitor, 240Hz, 0.03ms, NVIDIA G-Sync, VESA DisplayHDR True Black 400, HDMI 2.1, DisplayPort, USB Type-C PD 65W, Black

Dell 32 Plus 4K QD-OLED Monitor S3225QC - 31.6-inch (3840 x 2160) 120Hz 0.03ms Display, AI-Enhanced 3D Spatial Audio, Height/Tilt/Swivel/Slant Adjustment - Ash White

INNOCN 40C1R Ultrawide Monitor 40" WQHD 3440 x 1440p 144Hz FreeSync Premium HDR400 21:9 Computer Display 95% DCI-P3 500Nits IPS USB Type-C HDMI Tilt/Height Adjustable, Mountable

Samsung 43” Smart Monitor M7 (M70F) 4K UHD Display, Samsung Vision AI, Smart TV Apps, Gaming Hub, USB-C, HDMI and USB-A, Black, LS43FM702UNXZA, 2025

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