Q: Transfer data from 5 to 6

You may transfer data from your old device to the new one using iCloud or iTunes.

In order to transfer your data using  iCloud:

1. Take your old device
2. Navigate to settings app
3. Tap on iCloud
4. Choose Backup option
5. Tap Back Up Now
6. Take your new iPhone
7. Set up your device
8. Choose Restore form iCloud backup
9. Sign in to iCloud account
10. Select recent backup
11. Type your password if requested

Transfer data with the help of iTunes:

1. Take your old iPhone
2. Plug it  into Mac or Pc
3. Run  iTunes app
4. Click on Back Up
5. Wait until the backup is complete
6. Take your new device
7. Slide and set up your iPhone
8. Choose restore for iTunes backup
9. On iTunes app on mac or Windows choose restore form this backup option
10. Select the backup from the list
11. Type the password if requested

More info you may find here:

http://www.imore.com/how-to-transfer-data-old-iphone-new-iphone-6-plus

https://support.apple.com/en-us/HT201269