Android Data Recovery
Export WhatsApp Messages via Email on iPhone
-- Friday, June 05, 2015
Step 1. Open WhatsApp on your iPhone. Then go to "Chats". Select a contact. Left wipe it and then you will get two options - "More" and "Archive". Hit "More".
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Step 2. Select "Email Chat" on the pop-up as the screenshot shows.
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Step 3. Type an email address where you want to send your chat history to. After that, tap "Send". The chat history will be enclosed and sent.
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More WhatsApp Guides:
For iPhone users:
Indeed, you can not only back up your WhatsApp messages via email but also with iCloud. Please refer to: How to Back up and Restore WhatsApp Messages to iCloud
For Android users:
Back up and Restore WhatsApp Messages on Android
Export WhatsApp Messages from Android
Transfer WhatsApp Messages between Android