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Best Monitors - With 4K UHD - Under $400

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Updated: 16th September 2025

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Selecting the right size monitor with the appropriate screen quality to fit your needs are probably the most important decisions when purchasing a monitor. If budget permits, it is advised to select a higher quality monitor, because it will last for years to come.

4K UHD resolution (3840 X 2160 pixels) is advised for large monitors of more than 27 inches. 4K UHD resolution has a 16:9 aspect ratio that is best suited for YouTube or television viewing. The 4K DCI (4096 X 2160 pixels) is a bit wider with a 19:10 aspect ratio that is best for theater movies.

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Best Monitors - With 4K UHD - Under $400

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