Your phone probably already comes with basic image stabilization but you can always enhance it with a decent gimbal stabilizer. The DJI OM 4 is a magnetic smartphone stabilizer with a powerful motor to nullify any movement. It has gesture control, ActiveTrack 3.0 technology to follow subjects, and magnetic phone clamp & ring holder.
The OM 4 is compatible with iOS and Android devices. Its CloneMe feature lets you create amazing panoramas from several photos. Its DynamicZoom feature is ideal for getting that cool Hitchcock effect. The device lasts for 15 hours on a fully charged battery.