How big is Galaxy S25 Edge’s battery and how fast does it charge?

The Galaxy S25 Edge is finally official. It is Samsung's thinnest bar-style phone ever. If you haven't looked at the Galaxy S25 Edge spec sheet, you must be wondering if Samsung has sacrificed the phone's battery capacity to hit that 5.8mm waistline and if it can last a day on a single charge.

Well, the Galaxy S25 Edge has a smaller battery than the Galaxy S25+ and the Galaxy S25 Ultra, but by how much?

The Galaxy S25 Edge is powered by a 3,900mAh battery. That is 1,000mAh less capacity than the Galaxy S25+, 1,100mAh less than the Galaxy S25 Ultra, and 100 mAh less than the S25. But Samsung claims that its slimmest phone can still last an entire day on a single charge with normal usage. The phone is rated to last up to 24 hours of video playback on a single full charge.

When it comes to topping up the battery, the Galaxy S25 Edge supports 25W fast charging. It is similar to the Galaxy S25, Galaxy Z Flip 6, Galaxy Z Fold 6, and the Galaxy Z Fold SE. So, a 0-100% charge will likely take around 70 minutes. A 30-minute charge should top up the phone's battery by 55-60%.

Yes, the battery capacity has taken a hit compared to other phones, but according to Samsung's claims, the phone should still be able to last a day on a single charge. Of course, the mileage will vary according to each person's usage habits and patterns, and heavy use will take a toll on battery life.

Hopefully, Samsung will start using Silicon-Carbon (SiC) batteries in its phones next year to offer higher battery capacities in the same design or thinner designs with the same battery capacities as existing Galaxy phones.