Remove account
If you remove an account, information you synced will be removed from your phone, but it is not 
deleted from your account.
To remove other accounts:
1.  Go to 
Settings > Accounts.
2.  Touch the account name.
3.  Touch REMOVE ACCOUNT.
 
Tip: If you have trouble removing a corporate account, go to Settings
 > Security & 
location > Device admin apps and remove the tickmark for the account, then try to remove 
it again.
Sync accounts and apps
About syncing
You can manage how apps connected to your accounts are synced on your phone. Keep them 
all automatically up to date or just sync specific apps. Y
ou can also manually sync your data 
only when you need to.
The more you sync, the more battery your phone uses, so if you need to conserve, turn off sync 
for account features or apps you find less important. If you want to reduce usage of mobile 
data, turn off auto-sync entirely and instead sync accounts manually, or wait to sync manually 
over Wi-Fi.
Adjust auto-sync options for an account
1.  Go to Settings > Accounts.
2.  Touch the account name.
 by the account name means that some or all of the account's information is configured to 
auto-sync.
 by the account name means that the account will not auto-sync.
3.  Touch Account sync.
4.  Review the information and turn on/off types of account information to sync. For example, 
set your 
Google account to sync your Calendar and Gmail but not to sync for Drive.
When you turn off sync, the information is not removed from your phone; it just is no longer kept 
in sync with the version on the web.
Other settings : Accounts 173