Galaxy S4, the lock screen has become a more customizable place. You’ll still choose if you swipe to unlock or use a passcode or face scan, and you can still add and order lock screen icons that serve as shortcuts to the camera, search, and your contacts.
Now, however, there are lock screen widget options, similar in concept to what you can get onWindows Phone, but different in execution. For example, you choose if you’d like to see the clock or a personal message on the screen, and if you’d like to swipe to open a list of favorite apps or launch the camera
Getting the camera to open from the lock screen isn’t all that intuitive. The trick is to swipe right to left near the top of the widget. If you swipe on the bottom half of the page, you’ll go straight into the home screen.
There’s also a nice new lock screen effect: Light. With Air View enabled, a point of light follows your fingertip as you hover over the display.
You can choose from a couple of widgets on the lock screen, but better swipe on top to unlock to the app.