Monitors under $400

24.5-inch, FHD 1080p, 240Hz, IPS

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Alienware 240Hz Gaming Monitor 24.5 Inch Full HD with IPS Technology, Dark Gray - Dark Side of the Moon - AW2521HF

$399.99as of 11/04/2026 12:07 PST - Details

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Spec score7.6

Pros

+240Hz refresh rate for very smooth motion

+IPS panel for wide viewing angles

+24.5 inch screen size

+Full HD 1080p resolution

Compared with the 3 monitors on this page

+240Hz refresh: only 3 of 36 here have a higher refresh

−FHD 1080p: 38 of the 41 here have a higher resolution

How pros and cons are picked (About: Disclaimer)

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23.8-inch, FHD 1080p, 120Hz, IPS

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Lenovo ThinkCentre TIO24 G6 23.8" 1920x1080 120Hz 4ms Touchscreen Monitor with Webcam

$397.26as of 11/03/2026 23:54 PST - Details

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Spec score8.5

Pros

+Touchscreen for direct input

+120Hz refresh rate for smoother motion

+IPS panel for wide viewing angles

+Pivot function for portrait orientation

+Height adjustable stand

Compared with the 3 monitors on this page

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

+Height-adjustable stand: only 16 of 44 here have one

−FHD 1080p: 38 of the 41 here have a higher resolution

−120Hz refresh: 18 of the 36 here have a higher refresh

How pros and cons are picked (About: Disclaimer)

About this product

14-inch, FHD 1080p, 60Hz, IPS

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Triple Laptop Screen Extender, 14" FHD 1080P IPS Laptop Monitor Extender, Portable Monitor for Laptops 13-17", Travel

$359.99as of 11/04/2026 08:07 PST - Details

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Spec score7.9

Compared with the 3 monitors on this pagePros

+USB-C input: only 17 of 44 here have one

Cons

−FHD 1080p: 38 of the 41 here have a higher resolution

−60Hz refresh: 31 of the 36 here have a higher refresh

How pros and cons are picked (About: Disclaimer)

About this product