Monitors under $400

27-inch, 4K UHD, 180Hz, IPS

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LG 27G810A-B 27-inch Ultragear 4K UHD (3840 x 2160) IPS Gaming Monitor, Dual Mode UHD 180Hz or FHD 360Hz, 1ms, NVIDIA

$399.99as of 11/03/2026 23:57 PST - Details

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Spec score8.9

Pros

+4K UHD resolution for very sharp detail at 27 inches

+Dual mode offers 180Hz at 4K or 360Hz at Full HD

+IPS panel for wide viewing angles

+Height adjustable stand and pivot rotation

Cons

−4K gaming needs a powerful graphics card to reach high frame rates

Compared with the 3 monitors on this page

+4K UHD: the highest resolution of the 41 here

+95 dci-p3 coverage: only 1 of 9 here have a higher dci-p3 coverage

+Pivots to portrait: only 9 of 44 here have one

+180Hz refresh: 24 of the 36 here have a lower refresh

How pros and cons are picked (About: Disclaimer)

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34-inch, QHD 1440p, 180Hz, 1 ms or less

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ASUS TUF Gaming VG34VQ3B 34 Inch 1440p 180Hz Ultrawide HDR Gaming Monitor | ELMB Sync, 1ms,1500R Curve, 90% DCI-P3,

$323.99as of 11/04/2026 12:10 PST - Details

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Spec score7.9

Pros

+Fast 180Hz refresh rate for smooth motion

+Ultrawide 34 inch screen for wide gaming views

+1500R curve for an immersive viewing angle

+HDR support for enhanced contrast and brightness

+1 ms response time for quick pixel transitions

Cons

−Not an IPS panel listed in the specifications

Compared with the 3 monitors on this page

+180Hz refresh: 24 of the 36 here have a lower refresh

−90 dci-p3 coverage: 7 of the 9 here have a higher dci-p3 coverage

How pros and cons are picked (About: Disclaimer)

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About this product

34-inch, QHD 1440p, 180Hz, 1 ms or less

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Alienware 34 Curved Gaming Monitor – AW3425DWM - 34-inch WQHD 180Hz 1ms Display, 1500R, AMD FreeSync Premium, VESA

$349.99as of 11/04/2026 12:07 PST - Details

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Spec score7.9

Pros

+Curved 1500R screen for an immersive view

+180Hz refresh rate for smooth gaming motion

+1ms response time for reduced motion blur

+AMD FreeSync Premium adaptive sync support

Cons

−Curved screen may not suit users who prefer flat displays

−34-inch size is large for small desks

Compared with the 3 monitors on this page

+95 dci-p3 coverage: only 1 of 9 here have a higher dci-p3 coverage

+180Hz refresh: 24 of the 36 here have a lower refresh

How pros and cons are picked (About: Disclaimer)

About this product