How to transfer contacts from android to android and to Google account

Here's how

Open the Contacts app.
Tap the app's menu button.
Tap Import/Export.
Tap Import.
Tap Google.
Select Import vCard file, and tap OK.
If you have multiple vCard files in the location selected, you'll have to select which vCard file to import — Figure B)
Tap OK.
Video tutorial is available at this URL

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If you have multiple Android devices or you're planning on purchasing a new smartphone in the near future, you know that all of your Google contacts will be viewable by any Android device you associate with your Google account. But what about those contacts isolated to your phone's local storage? Since those aren't stored in your Google cloud, they won't be available to other devices. So, how do you solve that conundrum?

Easy... you migrate you contacts from the local storage to your Google account. I'll show you how to do that in two easy steps.

Note: This pro tip assumes that you have a device associated with a Google account and it contains a number of contacts on the local storage.