Samsung Galaxy S4 delete your Google & Gmail account

OS: Android 4.2.2 (Jelly Bean), upgradable to 5.0.1 (Lollipop); TouchWiz UI

CPU: Octa-core (4x1.6 GHz Cortex-A15 & 4x1.2 GHz Cortex-A7)

Display: 5" inc

Camera: 13 MP, Single

Remove a Google account on Samsung Galaxy S4

If you bought yourself a new phone and are going to give the old one to your child, you need to remove your Google account from the phone so that the new user does not accidentally access your profile and disrupt Google services.

What happens after deleting a Google account?
All data and content will be deleted, including emails, files, and photos.
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?
Go to the Settings section.
Now, select the Accounts and backup menu item.
Click Manage Accounts and delete your account.