Galaxy S26 Edge Might Finally Fix What Everyone Hated About the S25 Edge

By Mehtab Ansari • Updated On Aug 1, 2025

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TL; DR

S26 Edge could get a 4400 mAh battery upgrade.
Ice Universe says this will be possible due to a new battery material technology.
Despite getting a battery bump, the S25 Edge is reportedly getting even thinner.

Samsung’s Galaxy S25 Edge didn’t exactly win over fans that much, especially when it came to battery life. Some users were fine, but many kept saying their phones couldn’t even last till 3 PM. The problem was a tiny 3,900 mAh cell trying to power a device with top-tier specs. But that’s changing.

Now, rumors suggest Samsung has finally learned its lesson. If things go as expected, the Galaxy S26 Edge might launch with a 4,400 mAh battery. That alone could be a game-changer. After all, if the Fold 7 is giving solid screen-on time with the same battery, and it’s powering two displays, then the S26 Edge should definitely do better, right?

The battery information I got for the S26 Edge is 4400mAh. There seems to be some conflict here, I will double-check the information.
— PhoneArt (@UniverseIce) August 1, 2025

ALSO READ: Galaxy S26 Ultra to Get 60W Charging; S26 Pro Might Be Limited to 45W

What makes this even more interesting is Ice saying that the phone is getting thinner. That sounds impossible at first thought – how do you make a thinner phone and still add more battery? But Ice suggests that Samsung will be using a new battery material technology to achieve this. This could be Silicon Carbon, or something similar.

Confirmed:
The Galaxy S26 Edge will be thinner than the S25 Edge and have a larger battery thanks to new battery material technology.
— PhoneArt (@UniverseIce) July 23, 2025

Ice Universe hasn’t revealed the exact details, but it’s clear Samsung wants to fix one of the most complained-about issues about the S25 Edge. The S26 Edge is expected to go official next year, alongside the Galaxy S26 Ultra and the new S26 Pro.

ALSO READ: Galaxy S26 Ultra Leak: A Brighter f/1.5 Aperture Could Finally Fix Samsung’s Camera Lag Once and For All

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Mehtab Ansari

Mehtab Ansari is the Assistant Editor – Features & Reviews at Smartprix, where he writes about smartphones, laptops, audio gear, and everything in between. A computer science student by degree but a tech nerd by heart, he’s been into consumer tech for years and started reviewing products professionally in February 2024. He’s especially into photography and audio, often spending more time testing a smartphone’s camera than he probably should. For him, tech isn’t just work, it’s what he’s always thinking about.

Expertise

Smartphones, laptops, tablets, monitors, smartwatches, photography, and audio gear. I’ve reviewed over 60 products across these categories on Smartprix in the past year and a half.

Education - Bachelor of Computer Applications – Nizam College, Hyderabad (2022–2025) | Joined Smartprix -February 2024 | Published Reviews & Stories - 723

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