If you're someone who has more than one device you typically use on a daily basis and want to keep all your data across all of them, or if you're simply switching from an old phone to a new device it can be a little tedious to have to re-enter all your information. Of course, there are more than one or two ways to bypass the monotony of typing everything back in by hand, but Samsung has seemingly made things almost as effortless as possible with their Smart Switch application, which lets users transfer nearly any data from an old device to either the new Samsung Galaxy S6 or Samsung Galaxy S6 Edge, as well as other Samsung devices which run on Android 4.0 and above. All that's needed is for both the new and old device to have Samsung Smart Switch installed to begin, and this is already done with the both the Galaxy S6 and Galaxy S6 Edge as you'll be prompted to enable it. Smart Switch works for users coming from an iOS device as well, although you'll particularly need the desktop program to complete the steps. Those on Android can simply download the app from the Play Store or you can use dr.fone - Android Data Backup & Restore.
Once you have everything installed, the entire process is pretty simple. Start by opening up the application on the sending device, you'll be asked to open up the app on the receiving device so they can connect, and once connection is established you can go through configuring which data you want to send over. You'll be shown a screen with a series of different data including messages, pictures, videos, documents and pretty much any file from both the internal and external storage (if you have any) and it displays the amount of estimated size of everything you're sending over so you know exactly how much space will be taken up on the new phone. Simply select the check boxes for the data you want to move. For iOS users, start by opening up the Smart Switch desktop app and proceeding through the prompts to grab data from either iTunes or iCloud before attempting to connect to the new Samsung device.
Depending on what you select to transfer over, sending content could take anywhere from just a few minutes to an hour to complete. You can view the progress of the transfer right on both screens so you know exactly how much time and data is left to move over, and once everything is finished you'll be prompted to complete the process and close out the apps. In terms of transferring things over this is probably one of the simplest ways to move what you want from an old device to a new one, presuming your new device is a Samsung.