The magnetic connector cable is too loose on the Sony Z3 Compact. At the Sony Z3, contacts flush while they are on cable prominent. If you place the Z3 flat on a table, the cable connector is positioned well, but if you lift the Z3, the connector comes off or an angle of 90 ° with the Z3, interrupting the connection.
The product description says however that it is compatible with the Z3 Compact. I wonder if the seller has ever tested!
I asked to return the product for a refund, but the seller wonder pictures to prove my statements. I let you enjoy the pictures I sent him.