When comparing 4x6 vs 5x7, the 5x7 format is bigger than 4x6 in terms of both width and height. A 4x6 photograph is 4 inches by 6 inches and a 5x7 photograph is 5 inches by 7 inches. The larger format offers more space to showcase subjects and finer details, while 4x6 is more manageable to fit in to a compact album, Visuals Clipping explain. It is best to use the one that fits the purpose of the photograph, convenience or size of the viewing area.