prepared statement vs callable statement

At the top level you can go by this thought Prepared Statement

Instances of PreparedStatement contain an SQL statement that has already been compiled. This is what makes a statement "prepared"

Because PreparedStatement objects are precompiled, their execution can be faster than that of Statement objects.

The prepared statement is used to execute sql queries Callable Statement

A CallableStatement object provides a way to call stored procedures in a standard way for all RDBMSs. A stored procedure is stored in a database; the call to the stored procedure is what a CallableStatement object contains.