Samsung has since replaced TouchWiz with One UI Home . The 5.1.1 version lacks modern features like dark mode integration, advanced gesture navigation, and updated widget support found in newer versions.

For modern devices like the Galaxy Z Fold 4 or Tab S8, this is the safest method. Go to > Software Update . Tap Download and Install .

: A version specifically for older Android 5.0+ (Lollipop) devices. Samsung One UI Home - Apps on Google Play