The Samsung Galaxy S4 zoom comes with the same software as most recent Samsung smartphones and even the Galaxy NX. This means the latest Android, 4.2.2 Jelly Bean, and a laundry list of new TouchWiz features. The Galaxy S4 family has quite a lot of exclusive stuff to boast about and while it seems familiar, there's plenty new below the surface - so much in fact that you'd need a couple of days to just get acquainted with all the features.
Here's a user interface video to start you off, which also includes a close look at the camera and its rich features.
We start with the lockscreen, which has the new widgets introduced with Android 4.2, though Samsung fiddled with them a bit. The default lockscreen shows the time along with a personal message. You have to enable an option in the Settings to get all the widgets, and while you're at it you can also enable the beautiful random wallpapers from TripAdvisor (with text at the bottom about where the photo was taken).
The water ripples have been replaced by a lens flare effect though, if you prefer, you can switch back to the old one or disable it altogether.
Anyway, once you enable that option the lockscreen offers multiple panes, each containing one widget. The page to the right of the default one is special and can either be a list of favorite apps (the default TouchWiz setting) or a shortcut to the camera (as in pure Android).
The pages to the left contain different widgets - email, Google Now, WatchON, Messaging, music player, Yahoo! Finance and News and you can download apps from the Play Store that add new widgets.
There are no app shortcuts at the bottom of the screen by default - the Favorite Apps widget to the right has taken over that role, but you can enable them and have up to five easily accessible shortcuts.
You can change the greeting on the lockscreen by hitting the edit button. You can type something else, choose a different font and color. You can also disable the personal message altogether and remove the time and date info.
You might want to disable the lockscreen altogether to make launching the camera faster. Unfortunately, we found that the hardware shutter key doesn't launch the camera when the Galaxy S4 zoom is locked.
At the top of the screen there are five (or eight in landscape mode) toggles that can quickly enable and disable features. You can swipe horizontally to get to the others or you can tap the new button that reveals a grid of more shortcuts, 10 in total. A two finger swipe works too. You can rearrange this grid (the top row toggles are always visible).
The panel doesn't show all toggles - you get up to 10 visible, plus 6 more hidden ones, which you can bring up (replacing one of the 10 visible ones).
Below the toggles is the display brightness slider complete with an Auto toggle. You can disable this slider to get more room for notifications. The Auto toggle automatically adjusts the brightness but you can use the slider to tweak that, depending on whether you want a darker or brighter display.
The notifications themselves have not changed - they can be expanded to reveal more info and collapsed to save space, or dismissed with a sideways swipe. Sometimes they also have helpful buttons on them like "Call back" and "Send SMS" on a missed call notification.
The homescreen looks mostly the same. Samsung has provided many of its own custom widgets like Samsung Hub, S Travel, etc. There's a wraparound feature, which lets you scroll homescreens infinitely by always going from the last to the first one.
You can pinch zoom to get into the overview mode of all homescreen panes. There can be up to 7 and you can easily add, remove and rearrange panes from here. One pane is marked as "home", that's the one you go back to when you press the Home button, you can choose a different homescreen as the default quite easily.
The app drawer hasn't changed really since the early days of Nature UX. The app shortcuts are presented as a customizable grid, alphabetized grid or list and you can hide shortcuts (good for bloatware you can't uninstall), view only downloaded apps, uninstall apps and add folders.
You can also maximize space in the app drawer by stacking apps into folders. You can either drag icons on top of each other in edit mode or you can check multiple apps via the create folder option.
As before widgets are in a separate tab in the drawer (this is what stock Android dictates).
Pinch to zoom in the app drawer works in a similar way to the homescreen - it gives you an overview of all panes as thumbnails which you can rearrange (but not delete). There's a dedicated downloaded pane too, where all your downloaded apps go.
When you drag out shortcuts and widgets to the homescreen you get a list of small thumbnails of all the homescreen panes with the silhouettes of the widgets there so you can judge how much space is available on each pane.
The App switcher interface is unchanged - there's a list of thumbnails of all the recent apps (apps can be swiped to dismiss) and three buttons at the bottom, Task manager, Google Now and Kill all apps.
The settings menu has been redone in the latest TouchWiz version. Instead of a scrollable grid of icons and sections Samsung has went with a tabbed interface. On top you get four tabs - Connection, My device, Accounts and More. You can find the related features in their corresponding place - display, for instance, is in the My device tab, while Wi-Fi settings are in Connection).
It makes navigating the settings menu much faster and more intuitive.
We like what Samsung has done with the latest iteration of TouchWiz. Despite pilling feature upon feature, the whole thing really feels intuitive and well organized. There's still a learning curve, but it mostly involves users finding out they can tweak TouchWiz to their liking or getting to know all the functionality they get out of the box (where other phones would need third-party apps).