So you would like to capture smoother video with your iPhone, GoPro camera, or other comparable compact cameras? This Steadicam Foldable Electronic Gimbal Stabilizer has you covered. It has haptic control and accommodates phone sizes from 58 to 85mm wide.
The Steadicam Volt has Movie and Sport modes. Once you have balanced it, it continues working if the battery runs out. Expected to ship in August for under $200.