Oppo F1 delete your Google & Gmail account

OS: Android 5.1 (Lollipop); ColorOS 2.1

CPU: Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)

Display: 5" inc

Camera: 13 MP, Single

Remove a Google account on Oppo F1

You need to remove your Google account from your phone if you give the phone to another person and do not want him to get access to your profile settings, your mail or other Google services.

What happens after deleting a Google account?
Emails, all data and content, including files and photos, will be deleted.
You won't be able to use Google services that require you to sign in to your Google account (such as Gmail, Drive, Google Play or Calendar).
You will lose access to subscriptions and content purchased through this account on Google Play and YouTube (for example, applications, games, music, TV series).

How do I remove a Google account from my phone?
Open the Settings app.
After that, select the menu item Accounts and backup.
Click Manage Accounts and delete your account.