I have Moto G 2nd gen with 4G LTE, Android Ver 6. My wife has Nexus 5, Android Ver 6.0.1. We obviously have our separate Gmail accounts with separate email addresses. We would like to swap our phones. How and what should we do? 1) To be able to transfer our Whatsapp messages, pictures and videos 2) SMS messages (We use Textra app) 3) Any other advice you may give us. Since we use IMAP we will be able to load our emails. Thank you so much.