Samsung’s Galaxy S25 Edge might’ve landed with a bit of a thud — both critically and commercially — but the company isn’t giving up on its slim-and-sleek smartphone series just yet.
Leaker Ice Universe posted some fresh Edge rumors on Twitter this morning, alleging that Samsung will bring a larger battery to the Galaxy S26 Edge next year — presumably to address concerns that its current 3,900mAh cell can barely scrape through a day — while simultaneously delivering a chassis slimmer than 5.8mm. That certainly sounds like some promising improvements on paper, but it also implies Samsung is taking a leap that a select group of Galaxy fans have been begging the brand to take.
Ice Universe says the larger battery size will come thanks to “new battery material technology,” and unlike the rest of the rumor, that gives us plenty of space to speculate. Presumably, this points towards a switch to silicon-carbon batteries, something we’ve seen companies like OnePlus and Honor already start employing in their latest smartphones. Silicon-carbon batteries aren’t without their fair share of flaws, but they do allow for larger capacity cells in smaller spaces, and after this year’s launch, that’s exactly what the Galaxy S26 Edge needs to succeed.
If Samsung does make the jump towards silicon-carbon, I’d expect a relatively large boost compared to the S25 Edge’s 3,900mAh cell. While I doubt we’ll see a company frequently concerned with battery safety push its next ultra-slim smartphone to the brink, a nice 500 or 600mAh boost could help convince normal shoppers to grab this over, say, the Galaxy S26 Ultra — especially if it’s paired with an even slimmer chassis.
Unfortunately, we don’t have any specifics to go off of for either battery capacity or device dimensions, but if Samsung really is serious about replacing the Galaxy S26+ with this phone, these are steps in the right direction towards making that move a reality.
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