In your opinion what are some of the best websites that helps one to understand the features on the cell like drive, doc, memo, etc. And what you can usually do with them.

I am trying to find the simplest way when I am changing phones to keep all my pictures, notepad, messages, videos backup. If it can't be backup saved to the sd card, or whatever options I have to make the transition as simple as possible.

Any tips will be appreciated.

Thanks in advance.

Your cell provider generally offers those services free when changing phones. At least they do in the USA.

The manufacturer/seller of your phone would be the websites I would visit. Better a knowledgeable sales person, or technician who works with the product you are interested in. I use YouTube videos a LOT!

The store you got your phone at most likely has devices that you can plug both phones into and they can transfer easily and painlessly. Both me and my wife did it a couple months ago when we got our new Samsung NOTE 8s. This is only has hard as you make it... ask them first.