If you sign out of your iCloud account on your iPhone, you won't be able to sync your smartphone with other Apple add-ons. Go to Settings > Accounts > iCloud > Sign Out.
So take note that if you turn iCloud off on your phone, it will close on your watch too. If you have an Apple Watch, it’s automatically synced to your iPhone. If you want to save specific information, such as Safari passwords, select Save to this Mac.You will be given the option to select the files you want to save on your Mac, mark them and then confirm by clicking Keep a copy.