No restrictions, safe. It is safe for China Bank to inquire about the balance without restriction, because the bank has taken various security measures such as multi-identity authentication, and customers can inquire about the account balance and transaction details at any time and place without restriction. Bank of China can log in to China Bank's personal online banking to check the fund balance, transaction records and account status, or download the Pocket Banking APP, and you can check the balance at any time after logging in.