The pixel size of a 4x4 photo depends on the resolution setting. At 300 DPI, it measures around 1200 x 1200 pixels for high-quality prints. At lower resolutions like 150 DPI or 72 DPI, the pixel dimensions decrease, making it more suitable for digital use rather than printing. https://clippingexpertasia.com/blog/how-big-are-4x4-pictures/