Isn't bluetooth one way of transferring files into another? Or have your memory card into the other device. Galaxy S6 is wonderful, try using its VPN to be safe on the web using your phone.
You should have a Google account -make sure it's active -then go to your apps and click on the multicolored icon that looks almost like a spinning wheel or star -it will be under P -pictures . Once your account and password are verified -you can sync all your pics onto this and it will back up your existing photos . Hope this helps .