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Practical guides for online sellers: product photos, marketplace listings, video ads and growing your store.

What Is Pixel Ratio? Device Pixel Ratio, Pixel Aspect Ratio and Image Sizes (2026)

Seller Guides Oct 23, 2026

What Is Pixel Ratio? Device Pixel Ratio, Pixel Aspect Ratio and Image Sizes (2026)

What device pixel ratio and pixel aspect ratio mean, how they differ from aspect ratio, and how wide to export product images for 1x, 2x and 3x screens with srcset.

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