Locking the screen is the best standard way to secure the phone from unauthorized people accessing the phone, especially if you use the high-security unlock methods, such as PIN or password. Unfortunately, using these high-security unlock methods does limited the options which you can use to customize the lock screen.
See also: How to Unlock the Samsung Galaxy S4 Lock Screen
The different thing
See also: How to Unlock the Samsung Galaxy S4 Lock Screen
The different thing