The best monitor for PS4 that we've tested is the Sony INZONE M9. It's a premium model that performs very well for gaming, and while it's designed with the PS5 in mind, it still works without issue with the PS4.
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Easy-to-carry tablet-type gaming monitor The display delay of the liquid crystal display is reduced making it a suitable monitor for games. Compact size and easy to carry. A dedicated cover stand is included and the stand can be adjusted in 3 different angles. The HDMI terminal has 2 inputs and you can install another HDMI device other than PS4. The headphone jack is equipped with two outputs so two people can listen to the sound at the same time making it ideal for nighttime operation.
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