I don't know if android phones are as simple as Apple phones but I just sat my phones beside each other and all of my data and settings were transferred. It was like I never changed phones as far as appearance went.
Yeah, last time I did it we went up to the Apple store and suddenly the new phone was all set up.
Soon I have to get a new Windows computer. That's another story. Took me weeks to get everything transferred over last time. Still lost some stuff. I've seen articles about software that does it for you but even then the list of instructions is 6 pages long with lots of "if this happens then do that instead".