A 4x6 photo measures 4 by 6 inches with a 2:3 aspect ratio, while a 5x7 photo measures 5 by 7 inches with a different ratio. This difference affects how your images are cropped and displayed. Selecting the correct size ensures your photos retain their original composition and avoid unwanted trimming during printing. https://clippingexpertasia.com/blog/4x6-vs-5x7-photo-size/