GALAXY S

One UI 9 is draining some Galaxy S24 and S25 batteries

If your S24 or S25 is dying faster since One UI 9, a restart is the first fix to try. Samsung hasn't explained the drain yet.

By iDevice3 min read

Galaxy S

Samsung Galaxy S27

4 generations

October 23, 2026 · 9:20 PM CT

Samsung's One UI 9 update, built on Android 17, is leaving some Galaxy S24 and S25 owners with much worse battery life, 9to5Google reported. One Galaxy S24 Ultra owner on X saw the battery drop 95% in 3 hours and 15 minutes of screen time, and Samsung contacted them to book a service appointment at a nearby store. A Galaxy S25 owner says they now have to “charge my phone 3 to 4 times a day.” Others on Reddit describe the phone draining while it just sits idle.

The complaints so far come from a small number of owners on X, Reddit and Samsung's community forum. Samsung hasn't said what's causing the drain. If your battery got worse after updating, restart the phone first. A factory reset is the bigger step, so back up your data before you try it.

SAMSUNG GALAXY S273 min read

The Exynos Galaxy S27 gets a new modem that uses less power

October 20, 2026 · 5:37 AM CT

Samsung is putting a new M2700 5G modem in the Exynos versions of the Galaxy S27 and S27+, The Elec reports. It's faster and uses less power than the S26's modem, which matters most for battery life on mobile data.

SAMSUNG GALAXY S273 min read

The Galaxy S27 and S27+ could start with 8GB of RAM to keep the price down

October 20, 2026 · 2:28 AM CT

A tipster says Samsung will add 8GB versions of the S27 and S27+ next to the 12GB ones as memory prices climb, so the cheapest model may not be the one you picture. Storage speeds may differ across the line, and launch deals could shrink.