For devices running Lollipop (Android 5.0 - 5.1.1), the following legacy versions of the TouchWiz Home (now often listed as Samsung One UI Home) are compatible:
TouchWiz on Lollipop wasn't a software version; it was a moment in time. You can't download a moment. You can only remember how slippery the plastic back of the Galaxy S5 felt in your hand. samsung touchwiz home lollipop 5.1 1 download