The 5 lbs Tiffen Steadycam Smothee ($149) for iPhone and as well as for the GoPro camera, is a flexible tripod and is great if you don’t want your arm to tire out but the smallest wind or tap will still shake the camera while shooting video. The red knob on the left side controls the tilt of the unit from left to right, and the red knob on the back controls the tilt of the unit up and down. You have to make the adjustments so the unit sits level with whatever device you have mounted on the top of the unit.
The pros have been doing it for years, don’t expect feature film quality at your first outing. Practice, practice, practice … ❚