Good with your GoPro not so much with your smartphone. GravGrip is cheap battery free stabilization. it costs just $35. It works much better with GoPro and not so much with the smartphone, maybe i need more time to use it. I didn't test it a lot, need more time to get use to it. Honestly it looks really awesome to have it and not to worry about charging it all the time.
www.gravgrip.com/
13 дек 2020