Your latest iPhone or Android phone already has a decent image stabilization system. For even smoother shots, you may want to get your hands on a gimbal. The TOKQI-M06 is a 3-axis stabilization smartphone gimbal with a wireless microphone, AI tracking, telescoping rod, and a fill light. It supports easy gestures for intuitive control. It works with the Gimbal Show app.
This gimbal comes with a tiny remote control with a range of 10 meters. It can handle phones up to 220g. You get a removable wireless mic to sound better on video. The TOKQI-M06 Gimbal has 7 modes, including semi, full follow, POV, and inception space mode. The battery lasts up to 5 hours. Its AI camera has a tracking range of up to 5 meters. You can find this project on Kickstarter.