Samsung is working on the successor to the 5.8mm Galaxy S25 Edge, and the news is that it will be even slimmer than its predecessor. Plus, it includes a bigger battery. Unlike the S25 Edge, its successor will launch alongside the alleged standard “Galaxy S26 Pro” and S26 Ultra, replacing the Plus model.

The latest news comes from reliable tipster Ice Universe, according to whom the Galaxy S26 Edge measures just 5.5mm in thickness. He claims the battery capacity is 4,200mAh. Notably, battery capacity is an area where we’ve already seen some contradictory leaks.

According to a recent one from Weibo tipster Setsuna Digital, the S26 Edge packs a 4,400mAh battery—same as the Galaxy Z Fold 7. This is both impressive and questionable, as the Fold 7 achieves that capacity using two separate battery units under a much larger form factor, which the upcoming Edge model doesn’t have. Also, Samsung isn’t expected to shift to silicon-carbon battery tech anytime soon, as it’s reportedly focusing on a new and revolutionary solid-state battery technology—none of which is expected to make it to the S26 Edge.

So, will it be a slightly smaller 4,200mAh battery pack inside the S26 Edge? A 300mAh boost within a 0.3mm slimmer body is still impressive. That said, it will be interesting to see how Samsung makes up for the 4,900mAh capacity of the S25 Plus, which it’s going to replace.

While none of the information above is official, more leaks and rumors are likely to emerge as we inch closer to the launch—offering a clearer idea of what to expect. So stick around.

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