When you go out to shoot skateboarding or other action scenes, you want to capture the movement smoothly and finely. Holding the camera with your bare hands could result in shaky footage. There are anti-shaky cameras to solve this problem, but such products are currently too expensive for a beginner. With the best mobile phone gimbal stabilizer, you can get a gimbal head to stabilize the footage at the time of capturing the action. https://smartchimp.com.au/product/mobile-phone-gimbals/