Samsung's One UI 4 brings a whole new look to the Galaxy S21

Galaxy S21 owners can officially use Samsung's Android 12-powered One UI 4.

Samsung's One UI 4 out on the Galaxy S21

After a beta release this September, Galaxy S21 owners can now enjoy the perks of Samsung’s refreshed One UI 4.

One UI 4, which is built on top of Android 12, is bringing several updates. By far the most pronounced changes can be found in One UI 4’s design tweaks, which borrow some aesthetic qualities from Android 12’s Material You (minus the AI generation).