Nwz/Shutterstock

Samsung began rolling out the One UI 9 update to Galaxy S26 phones in September 2026, and more devices have gradually received the update since then. The update is expected to land on devices that are compatible with Android 17, which includes most Galaxy phones, tablets, and foldables released since 2023. The new features coming to your Samsung phone with One UI 9 include My FanCam, Now Brief, and other AI-powered conveniences, but there's a big caveat.

Many Samsung Galaxy users are reporting a huge increase in battery drain ever since One UI 9 was installed on their devices. These complaints primarily come from Galaxy S24 and S25 owners who received the update in one of Samsung's recent software rollouts.…