Samsung is taking smartphone design to new extremes with its relentless focus on slimness. Long-standing rumours about the Galaxy S26 lineup being exceptionally thin have now been backed up by solid intel. From what we’ve learned, every model in the series will feature a noticeable reduction in thickness compared to the 2025 versions, and yes, the Ultra still comes with the S Pen, even in its leaner form.
According to a reliable tipster, the Galaxy S26 Pro—stepping in as the new entry-level option—clocks in at a mere 6.7mm, trimming 0.5mm off the current Galaxy S25’s 7.2mm profile. The Galaxy S26 Edge goes even bolder, slimming down to 5.5mm from the S25 Edge’s 5.8mm, all while upgrading the battery from 3,900mAh to 4,200mAh. There’s talk of incorporating silicon-carbon tech to make that possible without sacrificing endurance.
As for the Galaxy S26 Ultra, it’s dipping below the 8mm mark at 7.8mm—down from 8.2mm on the S25 Ultra and 8.6mm on the S24 Ultra. Our source points out that the integrated S Pen is the limiting factor; any further reduction would require slimming the stylus itself, which isn’t feasible. This could signal changes ahead, such as reverting to an optional external S Pen, as seen on the Galaxy S21 Ultra, or phasing it out entirely. Keep in mind that these specs are based on recent prototypes so that the production models may tweak them slightly, but they’re likely to remain close.
These refinements underscore Samsung’s commitment to evolving its aesthetics without compromising power or toughness. Expect more leaks as we head toward the early 2026 rollout.
