Sync: you should have your People and other Google (calendar, books, phone numbers) sync'd from your N4 since those Google services are designed to be syncd. For 3rd party stuff (like evernote) it's tricker and depends on how those apps are designed but i believe the bigger developers do design for your stuff to be sync'd.
Apps you've paid for will be download-able in the Play store again. Though note that not 100% of apps have yet been updated to be compatible with N5 but i think the vast majority wont have issues.
Originally Posted by gjbrns
I have an nexus four and am considering Nexus five.I am not a tech head and at 75 years struggle a bit with technology. Some of the main problems I had with the Nexus four apart from battery life were the difficulties in providing any feedback about minor hassles and the lack of clear instructions for us oldies.I couldn't ever get the camera instructions off-line which was when I was likely to need them most. I'm wondering if I get Nexus five will all my stuff be automatically synced to it. E.g. people, evernote, calendar, apps I have paid for, chrome bookmarks, photos, keep, books,phone numbers[although they should all be in people i suppose].
Any advice appreciated.