The Square Jellyfish Micro Ball Head is a lightweight (0.3 oz) ball head meant to hold cameras and smartphones under 9 oz. It can fit onto any tripod with a 1/4"-20 threaded stud.
You can pan your camera a full 360°, while the built-in tension screw will hold it in place. Two slots on the head allow you to place the camera in portrait orientation.
Tension can be adjusted with a small flat-head screwdriver by turning the recessed set-screw under the ball head.