Samsung Galaxy S25 Edge: Screen Size & CSS Viewport

The Samsung Galaxy S25 Edge is the thinnest flagship Android phone ever built at 5.8 mm, enabled by a custom ultra-thin display module. From a responsive design standpoint, its CSS viewport of 412×893 represents the standard Android flagship width but with a notably tall content area — 893px of height places the fold position significantly lower than shorter phones.

For designers of mobile landing pages, 893px height means key calls-to-action that appear above the fold at 844px (iPhone 16) may fall below it on the S25 Edge. If your above-fold content strategy is tuned to 844px, test it at 893px to ensure critical elements still appear without scrolling on this device.

The 92.1% screen-to-body ratio means the S25 Edge has virtually no bezel, which affects how users grip and interact with it. Without a physical border to rest thumbs against, interaction zones shift inward. Bottom navigation elements and primary call-to-action buttons should be positioned within the thumb reach zone (bottom 40% of the screen) and sized generously at 412px width. Thin, hard-to-tap elements at the edges of the screen become especially problematic on this form factor.