Article by:
Shahram Mokhtari
@shahramm
Samsung’s Galaxy S25 Edge is a design flex. At just 5.8 mm thick, it’s the kind of phone that disappears between couch cushions, gets lost under coffee table clutter, and apparently falls off our teardown schedule (it was released almost two weeks ago). But there’s nothing supernatural going on inside this device, as the laws of physics eagerly remind us: cramming flagship performance into a casing slimmer than a pencil leads to some fascinating tradeoffs.
When we finally pried the S25 Edge open, we found a phone that’s fighting on two fronts: it wants to be the most powerful phone Samsung makes, and it wants to look impossibly thin doing it. These goals are fundamentally at odds, and nowhere is that tension more obvious than in the thermal design.
