Samsung’s Galaxy S25 Edge Shows the Limits of Impressively Thin Phones

A decade ago, Apple Inc., Samsung Electronics Co. and other smartphone manufacturers all battled over the same thing: making the thinnest phone possible. But the industry later pivoted, with technology giants focused instead on jamming in as much battery life, the brightest screens and the fastest chips available. That led to the tradeoff of thicker devices.

It’s now 2025 and the war over smartphone thinness is back on. Of the major brands, Samsung is kicking things off with its new Galaxy S25 Edge. It arrives just a few months before Apple is expected to release a similarly skinny iPhone.