Your smartphone probably already has basic image stabilization built-in. With the DJI OM 4, you can capture silky smooth videos. It comes with a magnetic phone clamp and ring holder and uses a 3-axis motor to keep your phone steady as you move.
With DynamicZoom, you can achieve Hitchcock effect. The OM 4 also has ActiveTrack 3.0 technology to follow subjects in the park. You also get gesture control to easily interact with the OM 4.