UHD, also known as 4K, has a resolution of 3840×2160 pixels, while FHD, or 1080p, has a resolution of 1920×1080 pixels. This means that UHD offers approximately four times the pixel density of FHD. The higher pixel count in UHD results in much sharper and more detailed images, allowing you to see finer details that might be lost in FHD footage. For instance, in a crowded area, UHD can help you distinguish individual faces and movements more clearly than FHD.
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