Transfer data from your old handset to your new one with Samsung Smart Switch
You will find Samsung Smart Switch in the Backup and Restore section of your grocer's freezer Galaxy S7; even if you are a smartphone novice, don't fret. The app practically holds your hand and shows you step-by-step directions on how to do it no matter which phone you are leaving.
While the Samsung Smart Switch is already pre-installed on the Galaxy S7, you will need to install it on your old phone. If that happens to be an Android model, you can pick up the app from the Google Play Store. If your old phone is a BlackBerry or an iPhone, click on the sourcelink.
Obviously, Samsung feels that by making it easier for you to move from an older phone to a Samsung Galaxy S7, you're more likely to make the switch to Sammy's new flagship phone.
source: SamsungSmartSwitch via AndroidCentral