Uploading the incorrect screenshot sizes to App Store Connect or Google Play Console is a massive bottleneck. It triggers instant dashboard upload rejections or, worse, leads to blurry, distorted graphical scaling on your users' high-end device screens.
Both major mobile marketplaces enforce strict aspect ratios and pixel resolutions on marketing creative assets. To ensure that your designs appear pixel-perfect and highly legible on modern screens, you must structure your design frames according to exact technical dimensions.