Samsung Galaxy S26 Edge could be even thinner, but might still have room for a bigger battery

2 hours ago 1

It turns out that the Galaxy S25 Edge has been a great success, with Samsung reportedly selling 650,000 units during the first month of sale. Naturally that means the Samsung Galaxy S26 Edge has some big shoes to fill, but the latest rumors suggest that the phone could get some very Edge-centric upgrades.

According to leaker Ice Universe, the Galaxy S26 Edge is in line to come with a 4,200 mAh battery, which is 300mAh larger than the S25 Edge. On top of that the phone could also be 3mm thinner, measuring just 5.5mmm.

That's roughly the same as the iPhone 17 Air, which is expected to be somewhere around 5.5mm thick — though rumors have varied anywhere between 5.3mm and 5.65mm.

It's not clear how Samsung will fit a bigger battery into a smaller phone, even if we are only talking about an extra 300 mAh.

My guess is that Samsung will employ some kind of special super-thin battery, similar to the cells found in the Galaxy Z Fold 7 — albeit not split in half. Presumably there will be some work done to improve battery density as well, increasing the capacity without increasing the size of the battery itself.

Samsung Galaxy S26 Edge is the start of something new

While we still don't know a great deal about what else the S26 Edge will have to offer, it should mark the beginning of a new chapter in the Galaxy S story.

If rumors are to be believed, Samsung will be scrapping the Galaxy S26 Plus and putting the new Edge front and center — rather than releasing it a few months later without as much fanfare. Which is certainly one way to stop the Plus model from encroaching into Ultra territory.

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Reducing the thickness of the phone is only going to emphasize what the Edge series is about — a thin, sleek phone that puts aesthetics above all else. But, considering the battery upgrade, it seems as though Samsung isn't going to compromise features if it doesn't have to. Or, at least, that's my hope.

We've still got several months to wait and find out what's going to happen. So in the meantime be sure to check out our Samsung Galaxy S26 hub for all the latest news and rumors about the next Samsung flagship.

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