Android has had split-screen multitasking for years, but what if one tiny tweak could change everything? Meet the new 90:10 split-screen mode, a subtle but powerful shift that might redefine how we use big screens.
Over the years, Android users have been stuck with either a 50:50 or 70:30 split-screen ratio. While these setups did allow the use of two apps at once, the real problem was that some apps often felt too small or hard to use.

For example, in the screenshot above, the standard 50:50 setup makes it hard to view product details and the shopping list simultaneously. The 70:30 ratio is slightly better, making one app usable, but the second app just sits there, taking up space without adding much value.
That’s where the new 90:10 split-screen mode steps in. Introduced in the One UI 8 Beta for the Galaxy S25 series, this mode enables any app to occupy 90% of the screen, providing users with a significant amount of screen real estate.

On the other hand, the second app remains active in just 10%. Whenever you want to use the smaller app, just tap on it, and it will swap to become the primary one. This makes multitasking smoother, as you don’t have to give up screen space, while still keeping the secondary app visible and ready to access without closing it.
This setup is especially useful for users without a YouTube Premium subscription who want to keep a video playing while browsing or using other apps in full screen.
Supported Devices and Future Rollout
Currently, the 90:10 split-screen mode is available in the One UI 8 Beta for the Galaxy S25 series. Interestingly, OnePlus introduced a similar concept called Open Canvas with OxygenOS 15 (based on Android 15) last year.
Rumors suggest that Google is working on this feature and could add it to Pixel phones with the Android 16 QPR1 update or later.
As for other Android manufacturers, there’s no word yet on whether they’ll adopt this feature. But if anything changes, we’ll keep you posted.