Best Way to Transfer "everything" from Old Z5 Compact to Replacement Z5 Compact ?

[MaxTractor]

My well used Z5 Compact is showing signs of age and occasional malfunction.

It is a "business critical" phone.  I have a replacement  Z5 Compact and I want to Transfer Everything to this replacement phone. Including  All(500-1000) Contacts, Text history over approx. 5 yrs, Apps, EMails, WhatsApp history etc etc.

- I have Experia Companion, but also am aware that  there are  other  options (NFC, Bluetooth, etc).  What is the  best way to effect  this  Transfer  please?

[Strampke]

What happens when you open: contacts.google.com (logged in of course) on your computer.

When all addresses are there then they will be on your new smartphone too.

If not: go settings -> accounts -> choose your google mail account and tap on account synchronisation

It's simple as that.

Maybe read this post about backups as well.