Transfer Android contacts to iPhone through Google Mail (Gmail)

 Another easy method to follow when transferring your Android contacts to an iPhone is through Google’sGmail (you need a Google account). When you add a new contact in your phone, it will always ask if you want to add it to the SIM card or Gmail. The reason for that is you will be able to migrate your contacts to iOS later on.

From your Android device:

Navigate to Settings > Accounts and Sync

Choose Google and enter your Gmail credentials (Username and Password)

By entering your Gmail account credentials, you let Android sync the contacts from either your SIM card or existing contacts on the device to your Gmail account. Once that has been taken care of, Head over to the iPhone and also go to Mail, Contacts, Calendars from the Settings app. This time, we are not going to choose Import from SIM, but instead tap on Gmail.

You will be asked for the Gmail account credentials again. After you log in it will ask which information would you like to activate. There are Mail, Contacts, Calendars, and Notes. What we want is Contacts, but if you also have other stuff, feel free to toggle them on. Your Android contacts should get imported after you let Gmail sync it to the iPhone.