To all who have no equipment and Sony still want to use the controller on an Android device a little tip: I bought a hardcase (from hard plastic to get very cheap) and those used for the suction cup. Works without problems and I can just pick tablet from the case when I do not need the controller.
Small restriction, which is not so good like me: The suction cup is not adjustable in angle, only to untem controller can adjust the angle, therefore only 4 stars instead of 5 stars