We are about a month away from the Galaxy S 5 launch, which will not only bring updated versions for most TouchWiz apps, but it will also bring a few brand new apps. Many of these apps leaked and are available to download right now. They include S Note, WatchON, S Health, S Translator, the calculator, and Gear Manager.
The only caveat, and a major one, is that you need a Samsung device running Android 4.4.2. Plus, some of the apps need to have the previous version uninstalled, which requires root. And of course, the Galaxy Fit won’t do much for you unless you have a Galaxy Fit, but you can at least see the UI.