Abstract: A belt clip apparatus for releasably holding a portable device on a user's apparel has a base member with a latch opening for receiving a lock pin projecting from the portable device, a clip for securing the base member to the wearer's apparel, and a latch member movably mounted in the base member for movement between a first position locking the lock pin in the latch opening, and a released position permitting the lock pin to be removed from the latch opening. A manually operable actuator linked to the latch member can be actuated by a user to move the latch member between the locked and released positions. The actuator is moved in a generally horizontal direction transverse to the hanging direction in order to release the latch member. A biasing device biases the latch member towards the locked position.