For some time now, Samsung has been hiding a very useful function within the One UI system that can help users get additional hours of work and extend battery life without much impact on daily phone use. It’s about the Display Assistant application, which allows you to manually limit the screen refresh rate for individual applications.
Modern flagship phones like the Samsung Galaxy S26 Ultra today use 120 Hz or even 144 Hz screens to make animations and scrolling as smooth as possible. The problem is that such high refresh rates of the content on the screen additionally consume the battery, even when the applications do not really benefit from them.
Longer battery life with one adjustment
For example, YouTube video content practically works at 60 Hz, but the One UI interface during scrolling still often raises the screen to 120 Hz, which unnecessarily increases power consumption. This is exactly where the Samsung Display Assistant steps in, which allows certain applications to be permanently locked at 60 Hz while the rest of the system remains in adaptive mode.
Practically, the user can limit applications such as YouTube, news applications or certain streaming services to 60 Hz, while games and social networks remain at full 120 Hz when necessary. The function is activated very simply through the option “Standard refresh rate apps” within the Display Assistant app available through the Galaxy Store.
Although this trick will not magically double the autonomy of the phone, the effect becomes very noticeable during prolonged use, especially for users who spend a lot of time on YouTube, browsing the news and streaming content.
This is precisely why many Samsung users consider Display Assistant to be one of the most underrated One UI functions when it comes to battery optimization, writes 3DVF.