The Galaxy S25 Ultra Doesn't Need Another Gimmick — It Needs Better Battery Life

The spec sheet looks familiar

I picked up the Galaxy S25 Ultra expecting Samsung to finally fix the thing that annoyed me most about its predecessor: endurance. The 5,000 mAh cell is unchanged. The Snapdragon 8 Elite chip is more efficient on paper, and the 6.9-inch Dynamic AMOLED screen still peaks at 2,600 nits. Those numbers read well, but after two weeks of commuting, photographing my kid, and falling asleep to podcasts, I was reaching for a charger by 6 p.m. most days.

That is not a disaster. It is, however, a disappointment for a $1,299 phone that markets itself as a productivity workhorse. The iPhone 16 Pro Max, with its smaller 4,685 mAh battery, consistently lasted me–5 an hour or two longer under the same conditions. Google's Pixel 9 Pro XL stretched even further, partly because the Tensor G4 seems less eager to chase performance cores. On a day trip to the Hudson Valley with GPS, photos, and music streaming, the S25 Ultra hit 15 percent by late afternoon while the Pixel 9 Pro XL still had 30 percent in the tank.

What actually improved

The titanium frame is noticeably lighter — the S25 Ultra weighs 221 grams versus 232 on the S24 Ultra. After a long call, the difference is real. The S Pen still tucks into the bottom with that satisfying click, and Samsung moved the fingerprint sensor slightly lower, which means fewer missed reads when the phone sits on a desk.

Camera hardware is largely a carryover: 200 MP main, 50 MP periscope telephoto with 5x optical zoom, 10 MP 3x tele, and 12 MP ultrawide. The new ProVisual engine does a better job handling high-contrast scenes. At a backyard birthday party, the S25 Ultra held detail in both the shaded patio and the sunlit lawn without blowing out highlights, a scenario where the S24 Ultra often picked one or the other. The 5x zoom remains the standout lens for candid portraits, producing natural background blur without relying on computational tricks.

Galaxy AI features like Circle to Search and Live Translate work as advertised. They are useful for maybe ten minutes a week. The rest of the time, they sit in a software layer that still feels cluttered compared with stock Android. Samsung continues to preload duplicate apps — two app stores, two browsers, two voice assistants — and the notification shade remains denser than it needs to be.

Charging is still stuck at 45W

The S25 Ultra supports 45W wired charging, the same speed Samsung introduced in 2022. A full charge takes about 55 minutes. OnePlus and Google both offer 80W-plus charging on phones that cost hundreds less. Wireless charging tops out at 15W with Samsung's proprietary Fast Wireless Charging 2.0 pad, which is slower than the 25W Qi2 charging on the iPhone 16 Pro Max. At this price, the charging speeds feel dated.

The bottom line

If you own an S24 Ultra, there is no compelling reason to upgrade. The battery is the same, the cameras are marginally better, and the AI tricks do not change how you use the phone. If your handset is two or three years old, the S25 Ultra is a strong device — just go in knowing that Samsung chose refinement over reinvention, and the one area that needed real work got a pass.